{ "data": { "a": { "slug": "qwen-image-2-1", "name": "Qwen-Image 2.1 (Model Studio)", "vendor": "Alibaba Cloud", "vendorUrl": "https://www.alibabacloud.com", "kind": "model", "category": "image-generation", "summary": "Qwen-Image 2.1 is Alibaba's image model for text-to-image and image editing with up to 10 reference images and transparent output, callable as qwen-image-2.1-pro through Alibaba Cloud Model Studio's DashScope and OpenAI-compatible APIs.", "url": "https://www.anchorterminal.com/tools/qwen-image-2-1", "markdownUrl": "https://www.anchorterminal.com/tools/qwen-image-2-1.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/qwen-image-2-1.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/qwen-image-2-1.json", "repo": "https://huggingface.co/Qwen/Qwen-Image-2.1", "license": "Closed API under Alibaba Cloud's product terms. Qwen-Image-2.1 weights are on Hugging Face under the Qwen Research License, for non-commercial use only.", "transports": [ "http" ], "remoteUrl": "https://dashscope-intl.aliyuncs.com/api/v1", "packages": [ { "registry": "pypi", "name": "dashscope" } ], "auth": "api-key", "authNotes": "Bearer Model Studio API key, created per region in the console by an account or RAM user with API-Key permission. Keys can be limited to chosen models and an IP allow-list of up to 20 entries, and reset. The model, endpoint and key must be in the same region. Async calls add `X-DashScope-Async: enable`.", "pricing": "usage", "pricingNotes": "qwen-image-2.1-pro is $0.04 an image in Singapore (International) and $0.035333 in Beijing, Virginia, Frankfurt, Tokyo and Hong Kong, list prices without promotions (model page, checked 10 October 2026). New Singapore users get a 90-day free quota, but whether it covers this model was not confirmed.", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Model Studio llms.txt, the Qwen image API reference or the model page, checked 10 October 2026.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-10" }, "docsUrl": "https://www.alibabacloud.com/help/en/model-studio/qwen-image-generation-and-editing-api-reference", "llmsTxt": "https://docs.modelstudio.console.alibabacloud.com/llms.txt", "capabilities": [ "image.generate", "image.edit", "image.reference" ], "tags": [ "official", "hosted", "usage-priced", "open-weights", "llms-txt", "openai-compatible", "async-jobs", "python", "sla", "soc2" ], "lastRelease": "2026-10-02", "graded": true, "anchor": { "graded": true, "score": 64.7, "grade": "B", "agentReady": false, "rank": 347, "ranked": true, "rankOf": 961, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 77, "payments": 20, "reliability": 70, "schema": 66, "security": 75, "transparency": 66 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-10" }, "negative": 0, "verdict": "qwen-image-2.1-pro generates and edits images with up to 10 references and transparent output, at $0.04 an image in Singapore, through an OpenAI-compatible endpoint or DashScope. Model Studio publishes a 99.9 per cent SLA and a no-training statement. The model allows 20 requests a minute, has no OpenAPI file, and its open weights are for non-commercial use only.", "bestFor": "Low-cost image generation and multi-reference editing with transparent PNG output, for agents already on Model Studio or using the OpenAI Images protocol.", "strengths": [ "Text-to-image and editing in one model, with 1 to 10 reference images and transparent output decided from the prompt", "$0.04 an image in Singapore and $0.035333 in five other regions, published without a login", "OpenAI-compatible /images/generations endpoint beside DashScope sync and async calls", "Keys can be limited to chosen models and an IP allow-list, and the audit log records each call", "The Model Studio privacy notice says customer data is never used for training" ], "weaknesses": [ "20 requests a minute in every region", "No OpenAPI or other machine-readable contract for the image endpoints", "Result URLs expire after 24 hours, and the OpenAI-compatible mode ignores `b64_json`", "`negative_prompt` works only on the qwen-image-3.0 series, not on qwen-image-2.1-pro", "Qwen-Image-2.1 weights are under a non-commercial research licence, so self-hosting is not an option for commercial work" ], "agentNotes": [ "Use the same region for the key, the model and the endpoint. Cross-region calls fail", "Download each result within 24 hours. The URL expires and the image is purged", "With the OpenAI SDK, pass `image`, `seed`, `prompt_extend` and `watermark` through `extra_body`, and write size as `1024x1024`, not `1024*1024`", "Set a client timeout of up to 600 seconds for several outputs, or use the async DashScope call and poll the task id", "Do not send `prompt_extend_mode: agent` with input images. It returns 400" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 64.7 } ], "editorialScores": { "ergonomics": 73, "maintenance": 77, "payments": 20, "reliability": 70, "schema": 66, "security": 75, "transparency": 60 }, "provenanceScore": 72 }, "connect": { "install": "pip install dashscope", "http": "curl --location 'https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/images/generations' \\\n --header 'Content-Type: application/json' \\\n --header \"Authorization: Bearer $DASHSCOPE_API_KEY\" \\\n --data '{\"model\":\"qwen-image-2.1-pro\",\"prompt\":\"A paper boat sticker on a transparent background\",\"n\":1}'" }, "letme": { "capability": "https://letme.dev/image.generate", "tool": "https://letme.dev/qwen-image-2-1" }, "sameCompany": [ "alibaba-wan" ], "area": "content", "unitPrices": [ { "item": "qwen-image-2.1-pro, Singapore", "unit": "image", "usd": 0.04, "note": "International scope, list price" }, { "item": "qwen-image-2.1-pro, Beijing, Virginia, Frankfurt, Tokyo, Hong Kong", "unit": "image", "usd": 0.035333, "note": "list price" } ], "provenance": { "legalEntity": "Alibaba Cloud (Singapore) Private Limited", "domain": "alibabacloud.com", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.alibabacloud.com/help/en/legal/latest/alibaba-cloud-international-website-product-terms-of-service-v-3-8-0", "privacy": "https://www.alibabacloud.com/help/en/model-studio/privacy-notice", "statusPage": "https://status.alibabacloud.com", "changelog": "https://www.alibabacloud.com/help/en/model-studio/newly-released-models", "securityTxt": "none", "checked": "2026-10-10", "notes": [ "The endpoints are on aliyuncs.com, Alibaba Cloud's service domain (dashscope-intl.aliyuncs.com and per-workspace maas.aliyuncs.com hosts), as in the alibaba-wan listing.", "www.alibabacloud.com/.well-known/security.txt returns an HTML not-found page.", "status.alibabacloud.com renders in the browser only and its incident history was not read.", "The legal entity and terms URL follow the alibaba-wan listing and were not re-read on 10 October." ], "score": 72 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/qwen-image-2-1.json", "live": { "slug": "qwen-image-2-1", "probe": { "target": "https://dashscope-intl.aliyuncs.com/api/v1", "method": "get", "lastAt": "2026-10-11T02:46:38.126307135Z", "lastOk": true, "lastStatus": 404, "lastMs": 232, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 170, "p95ms24h": 246, "samples24h": 30, "samples30d": 30, "days": [ { "date": "2026-10-10", "probes": 1, "ok": 1 }, { "date": "2026-10-11", "probes": 29, "ok": 29 } ] }, "updatedAt": "2026-10-11T02:46:38.126307135Z" } }, "answer": "Qwen-Image 2.1 (Model Studio) scores 64.7 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 6 of 7 scored categories.", "b": { "slug": "seedream-on-byteplus-modelark", "name": "Seedream on BytePlus ModelArk", "vendor": "BytePlus Pte. Ltd. (ByteDance)", "vendorUrl": "https://www.byteplus.com", "kind": "model", "category": "image-generation", "summary": "BytePlus ModelArk's hosted API for ByteDance's Seedream image models. One endpoint handles text-to-image, reference-image editing, batches of related images and layer decomposition, billed per generated image.", "url": "https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark", "markdownUrl": "https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/seedream-on-byteplus-modelark.json", "repo": "https://github.com/volcengine/ark-runtime-go", "license": "Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0", "transports": [ "http" ], "remoteUrl": "https://ark.ap-southeast.bytepluses.com/api/v3", "packages": [ { "registry": "pypi", "name": "arkruntime" }, { "registry": "pypi", "name": "byteplus-python-sdk-v2" }, { "registry": "go", "name": "github.com/volcengine/ark-runtime-go" } ], "auth": "api-key", "authNotes": "The image endpoint takes a ModelArk API key as a Bearer token and, per its reference, no other credential. Keys are created in the console after a browser sign-up, belong to one resource project and one region, and can be limited to named model IDs or custom inference endpoints and to an IP allowlist. A key can be disabled, re-enabled or deleted, and a primary account holds up to 50. Each model must be activated in the console before use.", "pricing": "usage", "pricingNotes": "Pay as you go per successfully generated image, in US dollars, published without a login. Seedream 5.0 flash $0.018, 4.0 $0.03, 5.0 lite $0.035, 4.5 $0.04, 5.0 pro $0.045 up to 2.61 million pixels and $0.09 above. Input images are free except on 5.0 pro, which charges $0.003 from the second. No free image quota is listed for Seedream, and an account in arrears for two hours is suspended (https://docs.byteplus.com/en/docs/modelark/model-pricing).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API reference, the pricing page or the error codes (checked 2026-10-09).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://docs.byteplus.com/en/docs/modelark/image-generation-api", "capabilities": [ "image.generate", "image.edit", "image.reference" ], "tags": [ "hosted", "closed-source", "api-key", "python", "go", "java", "openai-compatible", "watermark", "streaming", "regional-endpoints" ], "lastRelease": "2026-09-17", "graded": true, "anchor": { "graded": true, "score": 53.8, "grade": "D", "agentReady": false, "rank": 706, "ranked": true, "rankOf": 961, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 72, "maintenance": 73, "payments": 20, "reliability": 43, "schema": 62, "security": 70, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": -3, "negativeNotes": [ "The model list (updated 28 September 2026) says `seedream-5-0-lite` is supported in eu-west-1, while the deprecation page says the model was deactivated in that region on 10 September 2026 and the region page lists only `seed-2-0-lite` for the EU. The batch that carries the notice is dated 8 September 2026, two days earlier, against the page's own 30-day minimum. We made no call to confirm which page is right. 3 points (https://docs.byteplus.com/en/docs/modelark/model-deprecation-notice)." ], "verdict": "Per-image prices from $0.018 are public, and API keys can be limited to named models and an IP allowlist. No status page, SLA or OpenAPI file was found, onboarding needs a browser sign-up, and BytePlus says its model services are not available in the United States.", "bestFor": "Agents that need ByteDance's Seedream models first-hand, multi-reference edits, 4K output or layered PNG output at a published per-image price, for users outside the United States.", "strengths": [ "Per-image prices are public for five Seedream models, from $0.018 (5.0 flash) to $0.09 (5.0 pro above 1.5K), and failed or moderated images are not billed", "API keys are scoped to a project and can be limited to named model IDs or endpoints and to an IP allowlist", "Up to 14 reference images on Seedream 5.0 lite, 4.5 and 4.0, and up to 4K output (4096x4096) on those models", "The error reference lists 15 distinct 429 codes, and a burst-traffic guide gives backoff code with jitter", "The service terms say customer data is not used for training unless the customer opts in", "A written deprecation process promises at least 30 calendar days' notice, with dated batches and named replacements" ], "weaknesses": [ "No status page, incident history or ModelArk SLA was found in the pages read", "No OpenAPI file, llms.txt or Markdown docs for agents were found. The docs site is drawn by script", "The model list says `seedream-5-0-lite` runs in eu-west-1, while the deprecation page says it was deactivated there on 10 September 2026", "The Service Specific Terms say BytePlus Model Services are not available in the United States", "No idempotency key was found, so a retried request that succeeded is a second paid generation", "Image URLs expire 24 hours after generation, and a watermark is added unless `watermark` is set to false" ], "agentNotes": [ "POST to `https://ark.ap-southeast.bytepluses.com/api/v3/images/generations` with `Authorization: Bearer $ARK_API_KEY`. Keys and model activation are per region", "Set `watermark` to false if the image must not carry the AI-generated mark. The default is true", "Download `data[].url` within 24 hours, or ask for `response_format` `b64_json`", "Check each `data[].error` in a sequential batch. One moderated image does not fail the others, and only `usage.generated_images` is billed", "Stay under 500 images a minute per model and back off with jitter on 429. Layer decomposition reserves 17 against that limit per request" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.8 } ], "editorialScores": { "ergonomics": 72, "maintenance": 73, "payments": 20, "reliability": 43, "schema": 62, "security": 70, "transparency": 61 }, "provenanceScore": 59 }, "connect": { "install": "python -m pip install --upgrade arkruntime", "http": "curl https://ark.ap-southeast.bytepluses.com/api/v3/images/generations \\\n -H \"Content-Type: application/json\" \\\n -H \"Authorization: Bearer $ARK_API_KEY\" \\\n -d '{\"model\":\"seedream-5-0-lite-260128\",\"prompt\":\"A lighthouse at dusk\",\"size\":\"2K\",\"output_format\":\"png\",\"watermark\":false}'" }, "letme": { "capability": "https://letme.dev/image.generate", "tool": "https://letme.dev/seedream-on-byteplus-modelark" }, "sameCompany": [ "seedance-on-byteplus-modelark" ], "area": "content", "unitPrices": [ { "item": "Seedream 5.0 flash", "unit": "image", "usd": 0.018 }, { "item": "Seedream 4.0", "unit": "image", "usd": 0.03 }, { "item": "Seedream 5.0 lite", "unit": "image", "usd": 0.035 }, { "item": "Seedream 4.5", "unit": "image", "usd": 0.04 }, { "item": "Seedream 5.0 pro", "unit": "image", "usd": 0.045, "note": "up to 2.61 million pixels (1.5K or lower)" }, { "item": "Seedream 5.0 pro above 1.5K", "unit": "image", "usd": 0.09, "note": "more than 2.61 million pixels" } ], "provenance": { "legalEntity": "BytePlus Pte. Ltd.", "domain": "byteplus.com", "domainRegistered": "2002-09-07", "endpointOnVendorDomain": false, "terms": "https://docs.byteplus.com/en/docs/legal/docs-customer-agreement", "privacy": "https://docs.byteplus.com/en/docs/legal/docs-privacy-policy", "statusPage": "", "changelog": "https://docs.byteplus.com/en/docs/modelark/model-release-announcement", "securityTxt": "none", "checked": "2026-10-09", "notes": [ "The Customer Agreement (effective 30 September 2026) is made with BytePlus Pte. Ltd. or another BytePlus affiliate named as the contracting entity. The Service Specific Terms, which hold the ModelArk and Model Services sections, rank above it.", "The API answers at ark.ap-southeast.bytepluses.com and ark.eu-west.bytepluses.com, a different domain from byteplus.com. BytePlus's own docs name both hosts.", "The Privacy Policy names Byteplus Pte. Ltd. in Singapore as controller and says it does not cover personal data processed on behalf of corporate customers. That processing falls under the Data Processing Addendum, which we did not read.", "https://www.byteplus.com/.well-known/security.txt returns the site's HTML shell, not a security.txt file. The SDK repositories carry a SECURITY.md that sends reports to ByteDance's security centre.", "No status page was found in the docs or on the pages of www.byteplus.com that we could read.", "RDAP for byteplus.com gives a registration date of 2002-09-07 and Gandi SAS as registrar." ], "score": 59 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark.json", "live": { "slug": "seedream-on-byteplus-modelark", "probe": { "target": "https://ark.ap-southeast.bytepluses.com/api/v3", "method": "get", "lastAt": "2026-10-11T02:46:40.522889185Z", "lastOk": true, "lastStatus": 401, "lastMs": 296, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 503, "p95ms24h": 545, "samples24h": 248, "samples30d": 361, "days": [ { "date": "2026-10-09", "probes": 85, "ok": 85 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 29, "ok": 29 } ] }, "versions": [ { "registry": "pypi", "name": "arkruntime", "version": "0.10.0", "released": "2026-10-10", "seenAt": "2026-10-10T18:13:02.014421326Z" }, { "registry": "pypi", "name": "byteplus-python-sdk-v2", "version": "3.0.61", "released": "2026-09-17", "seenAt": "2026-10-10T18:13:02.129449064Z" } ], "githubStars": 1, "pypiWeekly": 1231, "securityTxt": { "url": "https://byteplus.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-10T15:41:28.099180307Z" }, "pages": [ { "url": "https://docs.byteplus.com/en/docs/modelark/model-release-announcement", "kind": "changelog", "status": 200, "checkedAt": "2026-10-10T19:01:13.74311325Z", "changedAt": "2026-10-10T19:01:13.74311325Z", "fingerprint": "dca186fa6260" }, { "url": "https://docs.byteplus.com/en/docs/modelark/model-pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-10T19:01:11.671700876Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "faaf238183a5" } ], "updatedAt": "2026-10-11T02:46:40.522889185Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Alibaba Cloud", "b": "BytePlus Pte. Ltd. (ByteDance)", "name": "Vendor" }, { "a": "https://dashscope-intl.aliyuncs.com/api/v1", "b": "https://ark.ap-southeast.bytepluses.com/api/v3", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Closed API under Alibaba Cloud's product terms. Qwen-Image-2.1 weights are on Hugging Face under the Qwen Research License, for non-commercial use only.", "b": "Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-10-02", "b": "2026-09-17", "name": "Last release" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms last updated" }, { "a": "", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Arbitration or class-action waiver" } ], "faq": [ { "answer": "Qwen-Image 2.1 (Model Studio) scores 64.7 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Qwen-Image 2.1 (Model Studio) or Seedream on BytePlus ModelArk?" }, { "answer": "Both need an API key.", "question": "Do Qwen-Image 2.1 (Model Studio) and Seedream on BytePlus ModelArk need an API key?" }, { "answer": "Yes. Qwen-Image 2.1 (Model Studio) has a hosted endpoint at https://dashscope-intl.aliyuncs.com/api/v1 and Seedream on BytePlus ModelArk at https://ark.ap-southeast.bytepluses.com/api/v3.", "question": "Can an agent call Qwen-Image 2.1 (Model Studio) and Seedream on BytePlus ModelArk without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 70 against 43", "Security \u0026 auth, 75 against 70", "Transparency \u0026 trust, 66 against 60" ], "also": [ "No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them" ], "goodFor": "Low-cost image generation and multi-reference editing with transparent PNG output, for agents already on Model Studio or using the OpenAI Images protocol.", "slug": "qwen-image-2-1", "watchFor": "20 requests a minute in every region" }, { "aheadOn": null, "also": null, "goodFor": "Agents that need ByteDance's Seedream models first-hand, multi-reference edits, 4K output or layered PNG output at a published per-image price, for users outside the United States.", "slug": "seedream-on-byteplus-modelark", "watchFor": "No status page, incident history or ModelArk SLA was found in the pages read" } ], "job": { "capability": "image.generate", "name": "Image generation" }, "others": [ { "json": "https://www.anchorterminal.com/compare/adobe-firefly-vs-qwen-image-2-1.json", "title": "Adobe Firefly API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/adobe-firefly-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/adobe-firefly-vs-seedream-on-byteplus-modelark.json", "title": "Adobe Firefly API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/adobe-firefly-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-qwen-image-2-1.json", "title": "Black Forest Labs FLUX API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.json", "title": "Black Forest Labs FLUX API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/bria-vs-qwen-image-2-1.json", "title": "Bria API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/bria-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/bria-vs-seedream-on-byteplus-modelark.json", "title": "Bria API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/bria-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/fal-image-vs-qwen-image-2-1.json", "title": "fal image models vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/fal-image-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/fal-image-vs-seedream-on-byteplus-modelark.json", "title": "fal image models vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/fal-image-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/google-imagen-vs-qwen-image-2-1.json", "title": "Google Imagen vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/google-imagen-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/google-imagen-vs-seedream-on-byteplus-modelark.json", "title": "Google Imagen vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/google-imagen-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/ideogram-vs-qwen-image-2-1.json", "title": "Ideogram API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/ideogram-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/ideogram-vs-seedream-on-byteplus-modelark.json", "title": "Ideogram API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/ideogram-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/leonardo-ai-vs-qwen-image-2-1.json", "title": "Leonardo.Ai API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/leonardo-ai-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/leonardo-ai-vs-seedream-on-byteplus-modelark.json", "title": "Leonardo.Ai API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/leonardo-ai-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/openai-image-api-vs-qwen-image-2-1.json", "title": "OpenAI Image API vs Qwen-Image 2.1 (Model Studio)", "url": "https://www.anchorterminal.com/compare/openai-image-api-vs-qwen-image-2-1" }, { "json": "https://www.anchorterminal.com/compare/openai-image-api-vs-seedream-on-byteplus-modelark.json", "title": "OpenAI Image API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/openai-image-api-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-recraft.json", "title": "Qwen-Image 2.1 (Model Studio) vs Recraft API", "url": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-recraft" }, { "json": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-replicate-image.json", "title": "Qwen-Image 2.1 (Model Studio) vs Replicate image models", "url": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-replicate-image" }, { "json": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-stability-ai-image.json", "title": "Qwen-Image 2.1 (Model Studio) vs Stability AI Image API", "url": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-stability-ai-image" }, { "json": "https://www.anchorterminal.com/compare/recraft-vs-seedream-on-byteplus-modelark.json", "title": "Recraft API vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/recraft-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/replicate-image-vs-seedream-on-byteplus-modelark.json", "title": "Replicate image models vs Seedream on BytePlus ModelArk", "url": "https://www.anchorterminal.com/compare/replicate-image-vs-seedream-on-byteplus-modelark" }, { "json": "https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image.json", "title": "Seedream on BytePlus ModelArk vs Stability AI Image API", "url": "https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image" } ], "scores": [ { "by": 27, "edge": "qwen-image-2-1", "key": "reliability", "name": "Reliability", "qwen-image-2-1": 70, "seedream-on-byteplus-modelark": 43, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 4, "edge": "qwen-image-2-1", "key": "schema", "name": "Schema \u0026 documentation", "qwen-image-2-1": 66, "seedream-on-byteplus-modelark": 62, "weight": 13 }, { "by": 1, "edge": "qwen-image-2-1", "key": "ergonomics", "name": "Agent ergonomics", "qwen-image-2-1": 73, "seedream-on-byteplus-modelark": 72, "weight": 13 }, { "by": 5, "edge": "qwen-image-2-1", "key": "security", "name": "Security \u0026 auth", "qwen-image-2-1": 75, "seedream-on-byteplus-modelark": 70, "weight": 14 }, { "by": 0, "edge": "", "key": "payments", "name": "Payments \u0026 pricing", "qwen-image-2-1": 20, "seedream-on-byteplus-modelark": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 4, "edge": "qwen-image-2-1", "key": "maintenance", "name": "Maintenance \u0026 community", "qwen-image-2-1": 77, "seedream-on-byteplus-modelark": 73, "weight": 7 }, { "by": 6, "edge": "qwen-image-2-1", "key": "transparency", "name": "Transparency \u0026 trust", "qwen-image-2-1": 66, "seedream-on-byteplus-modelark": 60, "weight": 7 } ], "summary": "Qwen-Image 2.1 (Model Studio) scores 64.7 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 6 of 7 scored categories. Both do image generation.", "verdicts": { "qwen-image-2-1": "qwen-image-2.1-pro generates and edits images with up to 10 references and transparent output, at $0.04 an image in Singapore, through an OpenAI-compatible endpoint or DashScope. Model Studio publishes a 99.9 per cent SLA and a no-training statement. The model allows 20 requests a minute, has no OpenAPI file, and its open weights are for non-commercial use only.", "seedream-on-byteplus-modelark": "Per-image prices from $0.018 are public, and API keys can be limited to named models and an IP allowlist. No status page, SLA or OpenAPI file was found, onboarding needs a browser sign-up, and BytePlus says its model services are not available in the United States." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark", "json": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark.md", "slim": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark.min.md" }, "markdown": "Qwen-Image 2.1 (Model Studio) scores 64.7 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 6 of 7 scored categories. Both do image generation.\n\n- Qwen-Image 2.1 (Model Studio): grade B, 64.7/100, rank #347 of 961. Markdown https://www.anchorterminal.com/tools/qwen-image-2-1.md · JSON https://www.anchorterminal.com/api/v1/tools/qwen-image-2-1.json\n- Seedream on BytePlus ModelArk: grade D, 53.8/100, rank #706 of 961. Markdown https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark.md · JSON https://www.anchorterminal.com/api/v1/tools/seedream-on-byteplus-modelark.json\n- Best image generation for AI agents: https://www.anchorterminal.com/best/image-generation/index.md\n- All 78 image comparisons: https://www.anchorterminal.com/compare/image-generation/index.md\n\n## Which one, for what\n\n### Qwen-Image 2.1 (Model Studio) (B)\n\nGood for: Low-cost image generation and multi-reference editing with transparent PNG output, for agents already on Model Studio or using the OpenAI Images protocol.\n\nAhead on:\n- Reliability, 70 against 43\n- Security \u0026 auth, 75 against 70\n- Transparency \u0026 trust, 66 against 60\n\nAlso in its favour:\n- No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them\n\nWatch for: 20 requests a minute in every region\n\n### Seedream on BytePlus ModelArk (D)\n\nGood for: Agents that need ByteDance's Seedream models first-hand, multi-reference edits, 4K output or layered PNG output at a published per-image price, for users outside the United States.\n\nWatch for: No status page, incident history or ModelArk SLA was found in the pages read\n\n\n## Score by category\n\n| Category | Weight | Qwen-Image 2.1 (Model Studio) | Seedream on BytePlus ModelArk | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 70 | 43 | Qwen-Image 2.1 (Model Studio) +27 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 66 | 62 | Qwen-Image 2.1 (Model Studio) +4 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 72 | Qwen-Image 2.1 (Model Studio) +1 |\n| Security \u0026 auth | 14% (17.5 this run) | 75 | 70 | Qwen-Image 2.1 (Model Studio) +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 20 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 77 | 73 | Qwen-Image 2.1 (Model Studio) +4 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 66 | 60 | Qwen-Image 2.1 (Model Studio) +6 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **64.7 · B** | **53.8 · D** | |\n\n## Facts side by side\n\n| Fact | Qwen-Image 2.1 (Model Studio) | Seedream on BytePlus ModelArk |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Alibaba Cloud | BytePlus Pte. Ltd. (ByteDance) |\n| Hosted endpoint | `https://dashscope-intl.aliyuncs.com/api/v1` | `https://ark.ap-southeast.bytepluses.com/api/v3` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Closed API under Alibaba Cloud's product terms. Qwen-Image-2.1 weights are on Hugging Face under the Qwen Research License, for non-commercial use only. | Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-02 | 2026-09-17 |\n| Terms last updated | couldn't be read | couldn't be read |\n| Privacy policy last updated | | couldn't be read |\n| Customer content may train models | couldn't be read | couldn't be read |\n| Terms restrict automated access | couldn't be read | couldn't be read |\n| Terms restrict benchmarking | couldn't be read | couldn't be read |\n| Terms or service can change without notice | couldn't be read | couldn't be read |\n| Arbitration or class-action waiver | couldn't be read | couldn't be read |\n\n## Verdicts\n\n**Qwen-Image 2.1 (Model Studio).** qwen-image-2.1-pro generates and edits images with up to 10 references and transparent output, at $0.04 an image in Singapore, through an OpenAI-compatible endpoint or DashScope. Model Studio publishes a 99.9 per cent SLA and a no-training statement. The model allows 20 requests a minute, has no OpenAPI file, and its open weights are for non-commercial use only.\n\n**Seedream on BytePlus ModelArk.** Per-image prices from $0.018 are public, and API keys can be limited to named models and an IP allowlist. No status page, SLA or OpenAPI file was found, onboarding needs a browser sign-up, and BytePlus says its model services are not available in the United States.\n\n## Before you call either\n\n### Qwen-Image 2.1 (Model Studio)\n\n1. Use the same region for the key, the model and the endpoint. Cross-region calls fail\n2. Download each result within 24 hours. The URL expires and the image is purged\n3. With the OpenAI SDK, pass `image`, `seed`, `prompt_extend` and `watermark` through `extra_body`, and write size as `1024x1024`, not `1024*1024`\n4. Set a client timeout of up to 600 seconds for several outputs, or use the async DashScope call and poll the task id\n5. Do not send `prompt_extend_mode: agent` with input images. It returns 400\n\n### Seedream on BytePlus ModelArk\n\n1. POST to `https://ark.ap-southeast.bytepluses.com/api/v3/images/generations` with `Authorization: Bearer $ARK_API_KEY`. Keys and model activation are per region\n2. Set `watermark` to false if the image must not carry the AI-generated mark. The default is true\n3. Download `data[].url` within 24 hours, or ask for `response_format` `b64_json`\n4. Check each `data[].error` in a sequential batch. One moderated image does not fail the others, and only `usage.generated_images` is billed\n5. Stay under 500 images a minute per model and back off with jitter on 429. Layer decomposition reserves 17 against that limit per request\n\n## Questions\n\n### Which is better for AI agents, Qwen-Image 2.1 (Model Studio) or Seedream on BytePlus ModelArk?\n\nQwen-Image 2.1 (Model Studio) scores 64.7 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 6 of 7 scored categories.\n\n### Do Qwen-Image 2.1 (Model Studio) and Seedream on BytePlus ModelArk need an API key?\n\nBoth need an API key.\n\n### Can an agent call Qwen-Image 2.1 (Model Studio) and Seedream on BytePlus ModelArk without installing anything?\n\nYes. Qwen-Image 2.1 (Model Studio) has a hosted endpoint at https://dashscope-intl.aliyuncs.com/api/v1 and Seedream on BytePlus ModelArk at https://ark.ap-southeast.bytepluses.com/api/v3.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark.json, and with the fewest tokens: https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"qwen-image-2-1\", \"b\": \"seedream-on-byteplus-modelark\"}`. From a terminal: `anchor compare qwen-image-2-1 seedream-on-byteplus-modelark`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/qwen-image-2-1.json and https://www.anchorterminal.com/api/v1/tools/seedream-on-byteplus-modelark.json\n\n## Other comparisons with Qwen-Image 2.1 (Model Studio) or Seedream on BytePlus ModelArk\n\n- [Adobe Firefly API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/adobe-firefly-vs-qwen-image-2-1.md)\n- [Adobe Firefly API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/adobe-firefly-vs-seedream-on-byteplus-modelark.md)\n- [Black Forest Labs FLUX API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/black-forest-labs-vs-qwen-image-2-1.md)\n- [Black Forest Labs FLUX API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.md)\n- [Bria API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/bria-vs-qwen-image-2-1.md)\n- [Bria API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/bria-vs-seedream-on-byteplus-modelark.md)\n- [fal image models vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/fal-image-vs-qwen-image-2-1.md)\n- [fal image models vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/fal-image-vs-seedream-on-byteplus-modelark.md)\n- [Google Imagen vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/google-imagen-vs-qwen-image-2-1.md)\n- [Google Imagen vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/google-imagen-vs-seedream-on-byteplus-modelark.md)\n- [Ideogram API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/ideogram-vs-qwen-image-2-1.md)\n- [Ideogram API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/ideogram-vs-seedream-on-byteplus-modelark.md)\n- [Leonardo.Ai API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/leonardo-ai-vs-qwen-image-2-1.md)\n- [Leonardo.Ai API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/leonardo-ai-vs-seedream-on-byteplus-modelark.md)\n- [OpenAI Image API vs Qwen-Image 2.1 (Model Studio)](https://www.anchorterminal.com/compare/openai-image-api-vs-qwen-image-2-1.md)\n- [OpenAI Image API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/openai-image-api-vs-seedream-on-byteplus-modelark.md)\n- [Qwen-Image 2.1 (Model Studio) vs Recraft API](https://www.anchorterminal.com/compare/qwen-image-2-1-vs-recraft.md)\n- [Qwen-Image 2.1 (Model Studio) vs Replicate image models](https://www.anchorterminal.com/compare/qwen-image-2-1-vs-replicate-image.md)\n- [Qwen-Image 2.1 (Model Studio) vs Stability AI Image API](https://www.anchorterminal.com/compare/qwen-image-2-1-vs-stability-ai-image.md)\n- [Recraft API vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/recraft-vs-seedream-on-byteplus-modelark.md)\n- [Replicate image models vs Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/replicate-image-vs-seedream-on-byteplus-modelark.md)\n- [Seedream on BytePlus ModelArk vs Stability AI Image API](https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-11", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Qwen-Image 2.1 (Model Studio) vs Seedream on BytePlus ModelArk", "url": "" } ], "description": "Qwen-Image 2.1 scores 64.7 (B) to Seedream on BytePlus ModelArk's 53.8 (D) for image generation. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Qwen-Image 2.1 (Model Studio) B 64.7", "Seedream on BytePlus ModelArk D 53.8", "scores" ], "h1": "Qwen-Image 2.1 (Model Studio) vs Seedream on BytePlus ModelArk", "image": "https://www.anchorterminal.com/assets/og/compare-qwen-image-2-1-vs-seedream-on-byteplus-modelark.png", "path": "/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark", "published": "2026-10-01", "section": "tools", "title": "Qwen-Image 2.1 vs Seedream on BytePlus ModelArk for AI agents (2026)", "toc": null, "updated": "2026-10-10", "url": "https://www.anchorterminal.com/compare/qwen-image-2-1-vs-seedream-on-byteplus-modelark" }, "tokens": { "markdown": 2750, "slim": 680 }, "version": 1 }