{ "data": { "a": { "slug": "black-forest-labs", "name": "Black Forest Labs FLUX API", "vendor": "Black Forest Labs", "vendorUrl": "https://bfl.ai", "kind": "model", "category": "image-generation", "summary": "Black Forest Labs' hosted API for the FLUX image models.", "url": "https://www.anchorterminal.com/tools/black-forest-labs", "markdownUrl": "https://www.anchorterminal.com/tools/black-forest-labs.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/black-forest-labs.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/black-forest-labs.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.bfl.ai/v1", "packages": [], "auth": "mixed", "authNotes": "REST API takes the key in an `x-key` header. The hosted MCP server at mcp.bfl.ai uses OAuth with a BFL account and bills the organisation you pick at sign-in.", "pricing": "usage", "pricingNotes": "Prepaid credits, 1 credit is $0.01, same price in API and Playground. FLUX.2 is priced by output megapixel. [klein] 4B from $0.014, [klein] 9B from $0.015, [pro] from $0.03 (edits from $0.045), [flex] from $0.05, [max] from $0.07. FLUX.1 Kontext [pro] $0.04, Kontext [max] $0.08, FLUX1.1 [pro] $0.04, Ultra $0.06. Batches cost the per-image price times the count (https://bfl.ai/pricing).", "priceSummary": "$0.01 / credit", "where": "hosted", "x402": { "level": "no", "evidence": "No machine payment. Access needs prepaid credits on a BFL account.", "endpoints": [] }, "toolCount": 7, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.bfl.ai", "llmsTxt": "https://docs.bfl.ai/llms.txt", "openapi": "https://api.bfl.ai/openapi.json", "registryName": "io.github.black-forest-labs/flux-mcp", "capabilities": [ "image.generate", "image.edit", "image.reference" ], "tags": [ "hosted", "mcp", "llms-txt", "openapi", "async-jobs", "webhooks", "open-weights", "c2pa", "commercial-licence" ], "lastRelease": "2026-09-10", "graded": true, "anchor": { "graded": true, "score": 63.9, "grade": "B", "agentReady": false, "rank": 368, "ranked": true, "rankOf": 950, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 67, "maintenance": 73, "payments": 20, "reliability": 65, "schema": 88, "security": 65, "transparency": 62 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Per-image and per-megapixel prices published per model, from $0.014. Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since.", "bestFor": "Agents that need multi-reference edits and a price ladder from drafts to final renders, and for EU data residency.", "strengths": [ "Per-image and per-megapixel prices published per model, from $0.014", "Up to 10 reference images and 4MP output on FLUX.2", "EU and US regional endpoints with a global endpoint that fails over", "Official hosted MCP server with OAuth, listed in the MCP registry", "OpenAPI specs, llms.txt and an errors page covering every task status" ], "weaknesses": [ "Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since", "Result URLs expire after 10 minutes", "Prompts and uploads may be used for training unless you email an opt-out", "Developer terms allow changing or removing parts of the service without notice", "No official SDK package and no free credits" ], "agentNotes": [ "Poll the `polling_url` from the submit response, never a hand-built URL", "Download `result.sample` straight away. It's gone after 10 minutes", "Stay under 24 concurrent jobs, 6 on flux-kontext-max, and back off exponentially on 429", "Treat 402 as out of credit, not as a retryable error", "Use api.eu.bfl.ai or api.us.bfl.ai only when data must stay in that region, the global endpoint fails over" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 63.9 } ], "editorialScores": { "ergonomics": 67, "maintenance": 73, "payments": 20, "reliability": 65, "schema": 88, "security": 65, "transparency": 40 }, "provenanceScore": 84 }, "connect": { "http": "curl -X POST https://api.bfl.ai/v1/flux-2-pro \\\n -H \"x-key: $BFL_API_KEY\" -H \"content-type: application/json\" \\\n -d '{\"prompt\":\"A serene landscape with mountains\",\"width\":1024,\"height\":1024}'\n# then GET the returned polling_url with the same x-key until status is Ready", "claudeCode": "claude mcp add --transport http FLUX https://mcp.bfl.ai" }, "letme": { "capability": "https://letme.dev/image.generate", "tool": "https://letme.dev/black-forest-labs" }, "area": "content", "unitPrices": [ { "item": "FLUX.2 [klein] 4B", "unit": "image", "usd": 0.014, "note": "from, first megapixel" }, { "item": "FLUX.2 [pro]", "unit": "image", "usd": 0.03, "note": "from, text-to-image, first megapixel" }, { "item": "FLUX.2 [max]", "unit": "image", "usd": 0.07, "note": "from, first megapixel" }, { "item": "FLUX.1 Kontext [pro]", "unit": "image", "usd": 0.04 }, { "item": "FLUX1.1 [pro]", "unit": "image", "usd": 0.04 }, { "item": "Credits", "unit": "credit", "usd": 0.01 } ], "provenance": { "legalEntity": "Black Forest Labs Inc.", "domain": "bfl.ai", "domainRegistered": "2022-06-29", "endpointOnVendorDomain": true, "terms": "https://bfl.ai/legal/developer-terms-of-service", "privacy": "https://bfl.ai/legal/privacy-policy", "statusPage": "https://status.bfl.ai", "changelog": "https://docs.bfl.ai/release-notes", "securityTxt": "valid", "checked": "2026-09-30", "notes": [ "BFL GmbH (Freiburg, Germany) is the data controller for users in the EEA, Switzerland and the UK.", "The docs also answer on docs.bfl.ml and the security.txt lists blackforestlabs.ai as a second canonical domain." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/black-forest-labs.json", "live": { "slug": "black-forest-labs", "probe": { "target": "https://api.bfl.ai/v1", "method": "get", "lastAt": "2026-10-10T03:53:21.69988979Z", "lastOk": true, "lastStatus": 404, "lastMs": 386, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 377, "p95ms24h": 559, "samples24h": 249, "samples30d": 2476, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 40, "ok": 40 } ] }, "vendorStatus": { "page": "https://status.bfl.ai", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-10T03:58:00.977044902Z" }, "versions": [ { "registry": "mcp-registry", "name": "io.github.black-forest-labs/flux-mcp", "version": "1.0.0", "seenAt": "2026-10-10T03:11:32.438759038Z" } ], "securityTxt": { "url": "https://bfl.ai/.well-known/security.txt", "state": "valid", "expires": "2027-02-01T00:00:00Z", "checkedAt": "2026-10-09T15:39:48.917437612Z" }, "llmsTxt": { "url": "https://docs.bfl.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-09T14:01:31.721612198Z" }, "domain": { "domain": "bfl.ai", "registered": "2022-06-29", "source": "https://rdap.identitydigital.services/rdap/domain/bfl.ai", "checkedAt": "2026-10-04T13:10:31.899583527Z" }, "pages": [ { "url": "https://docs.bfl.ai/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-09T18:36:39.480338516Z", "changedAt": "2026-10-02T15:19:38.108762461Z", "fingerprint": "dcaf496d519d" }, { "url": "https://bfl.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-09T18:33:04.955444521Z", "changedAt": "2026-10-08T18:15:39.734385201Z", "fingerprint": "32047e4eee1c" }, { "url": "https://bfl.ai/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:33:02.978409846Z", "changedAt": "2026-10-02T15:17:47.888380414Z", "fingerprint": "d6320ad3accb" }, { "url": "https://bfl.ai/legal/developer-terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:33:00.767206524Z", "changedAt": "2026-10-02T15:17:45.836950048Z", "fingerprint": "ddc9a171e173" } ], "updatedAt": "2026-10-10T03:58:00.977044902Z" } }, "answer": "Black Forest Labs FLUX API scores 63.9 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 3 of 7 scored categories. Seedream on BytePlus ModelArk leads on agent ergonomics and security \u0026 auth.", "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": 700, "ranked": true, "rankOf": 950, "categoryRank": 5, "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": "2026-10-10T03:53:42.879224265Z", "lastOk": true, "lastStatus": 401, "lastMs": 470, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 507, "p95ms24h": 595, "samples24h": 125, "samples30d": 125, "days": [ { "date": "2026-10-09", "probes": 85, "ok": 85 }, { "date": "2026-10-10", "probes": 40, "ok": 40 } ] }, "versions": [ { "registry": "pypi", "name": "arkruntime", "version": "0.8.0", "released": "2026-09-17", "seenAt": "2026-10-09T17:19:00.477962822Z" }, { "registry": "pypi", "name": "byteplus-python-sdk-v2", "version": "3.0.61", "released": "2026-09-17", "seenAt": "2026-10-09T17:19:00.589058252Z" } ], "githubStars": 1, "pypiWeekly": 1265, "pages": [ { "url": "https://docs.byteplus.com/en/docs/modelark/model-release-announcement", "kind": "changelog", "status": 200, "checkedAt": "2026-10-09T18:36:54.525658153Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2c972ac5021a" }, { "url": "https://docs.byteplus.com/en/docs/modelark/model-pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-09T18:36:52.663758009Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "faaf238183a5" } ], "updatedAt": "2026-10-10T03:53:42.879224265Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Black Forest Labs", "b": "BytePlus Pte. Ltd. (ByteDance)", "name": "Vendor" }, { "a": "https://api.bfl.ai/v1", "b": "https://ark.ap-southeast.bytepluses.com/api/v3", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "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": "7", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "io.github.black-forest-labs/flux-mcp", "b": "not listed", "name": "MCP registry" }, { "a": "2026-09-10", "b": "2026-09-17", "name": "Last release" }, { "a": "2026-08-04", "b": "couldn't be read", "name": "Terms last updated" }, { "a": "2026-08-01", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "yes, with an opt-out", "b": "couldn't be read", "name": "Customer content may train models" }, { "a": "yes", "b": "couldn't be read", "name": "Terms restrict automated access" }, { "a": "yes", "b": "couldn't be read", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "couldn't be read", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "couldn't be read", "name": "Arbitration or class-action waiver" }, { "a": "3.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Black Forest Labs FLUX API scores 63.9 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 3 of 7 scored categories. Seedream on BytePlus ModelArk leads on agent ergonomics and security \u0026 auth.", "question": "Which is better for AI agents, Black Forest Labs FLUX API or Seedream on BytePlus ModelArk?" }, { "answer": "Black Forest Labs FLUX API takes an API key or an OAuth sign-in. Seedream on BytePlus ModelArk needs an API key.", "question": "Do Black Forest Labs FLUX API and Seedream on BytePlus ModelArk need an API key?" }, { "answer": "Yes. Black Forest Labs FLUX API has a hosted endpoint at https://api.bfl.ai/v1 and Seedream on BytePlus ModelArk at https://ark.ap-southeast.bytepluses.com/api/v3.", "question": "Can an agent call Black Forest Labs FLUX API and Seedream on BytePlus ModelArk without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 65 against 43", "Schema \u0026 documentation, 88 against 62" ], "also": [ "No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them" ], "goodFor": "Agents that need multi-reference edits and a price ladder from drafts to final renders, and for EU data residency.", "slug": "black-forest-labs", "watchFor": "Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since" }, { "aheadOn": [ "Agent ergonomics, 72 against 67", "Security \u0026 auth, 70 against 65" ], "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-black-forest-labs.json", "title": "Adobe Firefly API vs Black Forest Labs FLUX API", "url": "https://www.anchorterminal.com/compare/adobe-firefly-vs-black-forest-labs" }, { "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-bria.json", "title": "Black Forest Labs FLUX API vs Bria API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-bria" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-fal-image.json", "title": "Black Forest Labs FLUX API vs fal image models", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-fal-image" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-google-imagen.json", "title": "Black Forest Labs FLUX API vs Google Imagen", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-google-imagen" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-ideogram.json", "title": "Black Forest Labs FLUX API vs Ideogram API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-ideogram" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-leonardo-ai.json", "title": "Black Forest Labs FLUX API vs Leonardo.Ai API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-leonardo-ai" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-openai-image-api.json", "title": "Black Forest Labs FLUX API vs OpenAI Image API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-openai-image-api" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-recraft.json", "title": "Black Forest Labs FLUX API vs Recraft API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-recraft" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-replicate-image.json", "title": "Black Forest Labs FLUX API vs Replicate image models", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-replicate-image" }, { "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-stability-ai-image.json", "title": "Black Forest Labs FLUX API vs Stability AI Image API", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-stability-ai-image" }, { "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-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-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-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-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-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/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": [ { "black-forest-labs": 65, "by": 22, "edge": "black-forest-labs", "key": "reliability", "name": "Reliability", "seedream-on-byteplus-modelark": 43, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "black-forest-labs": 88, "by": 26, "edge": "black-forest-labs", "key": "schema", "name": "Schema \u0026 documentation", "seedream-on-byteplus-modelark": 62, "weight": 13 }, { "black-forest-labs": 67, "by": 5, "edge": "seedream-on-byteplus-modelark", "key": "ergonomics", "name": "Agent ergonomics", "seedream-on-byteplus-modelark": 72, "weight": 13 }, { "black-forest-labs": 65, "by": 5, "edge": "seedream-on-byteplus-modelark", "key": "security", "name": "Security \u0026 auth", "seedream-on-byteplus-modelark": 70, "weight": 14 }, { "black-forest-labs": 20, "by": 0, "edge": "", "key": "payments", "name": "Payments \u0026 pricing", "seedream-on-byteplus-modelark": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "black-forest-labs": 73, "by": 0, "edge": "", "key": "maintenance", "name": "Maintenance \u0026 community", "seedream-on-byteplus-modelark": 73, "weight": 7 }, { "black-forest-labs": 62, "by": 2, "edge": "black-forest-labs", "key": "transparency", "name": "Transparency \u0026 trust", "seedream-on-byteplus-modelark": 60, "weight": 7 } ], "summary": "Black Forest Labs FLUX API scores 63.9 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 3 of 7 scored categories. Seedream on BytePlus ModelArk leads on agent ergonomics and security \u0026 auth. Both do image generation.", "verdicts": { "black-forest-labs": "Per-image and per-megapixel prices published per model, from $0.014. Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since.", "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/black-forest-labs-vs-seedream-on-byteplus-modelark", "json": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.md", "slim": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.min.md" }, "markdown": "Black Forest Labs FLUX API scores 63.9 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 3 of 7 scored categories. Seedream on BytePlus ModelArk leads on agent ergonomics and security \u0026 auth. Both do image generation.\n\n- Black Forest Labs FLUX API: grade B, 63.9/100, rank #368 of 950. Markdown https://www.anchorterminal.com/tools/black-forest-labs.md · JSON https://www.anchorterminal.com/api/v1/tools/black-forest-labs.json\n- Seedream on BytePlus ModelArk: grade D, 53.8/100, rank #700 of 950. 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 66 image comparisons: https://www.anchorterminal.com/compare/image-generation/index.md\n\n## Which one, for what\n\n### Black Forest Labs FLUX API (B)\n\nGood for: Agents that need multi-reference edits and a price ladder from drafts to final renders, and for EU data residency.\n\nAhead on:\n- Reliability, 65 against 43\n- Schema \u0026 documentation, 88 against 62\n\nAlso in its favour:\n- No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them\n\nWatch for: Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since\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\nAhead on:\n- Agent ergonomics, 72 against 67\n- Security \u0026 auth, 70 against 65\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 | Black Forest Labs FLUX API | Seedream on BytePlus ModelArk | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 43 | Black Forest Labs FLUX API +22 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 88 | 62 | Black Forest Labs FLUX API +26 |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 72 | Seedream on BytePlus ModelArk +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 65 | 70 | Seedream on BytePlus ModelArk +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) | 73 | 73 | even |\n| Transparency \u0026 trust | 7% (8.8 this run) | 62 | 60 | Black Forest Labs FLUX API +2 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **63.9 · B** | **53.8 · D** | |\n\n## Facts side by side\n\n| Fact | Black Forest Labs FLUX API | Seedream on BytePlus ModelArk |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Black Forest Labs | BytePlus Pte. Ltd. (ByteDance) |\n| Hosted endpoint | `https://api.bfl.ai/v1` | `https://ark.ap-southeast.bytepluses.com/api/v3` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | none | Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0 |\n| Tools exposed | 7 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | `io.github.black-forest-labs/flux-mcp` | not listed |\n| Last release | 2026-09-10 | 2026-09-17 |\n| Terms last updated | 2026-08-04 | couldn't be read |\n| Privacy policy last updated | 2026-08-01 | couldn't be read |\n| Customer content may train models | yes, with an opt-out | couldn't be read |\n| Terms restrict automated access | yes | couldn't be read |\n| Terms restrict benchmarking | yes | couldn't be read |\n| Terms or service can change without notice | yes | couldn't be read |\n| Arbitration or class-action waiver | yes | couldn't be read |\n| Agent reviews | 3.5/5 (2) | none |\n\n## Verdicts\n\n**Black Forest Labs FLUX API.** Per-image and per-megapixel prices published per model, from $0.014. Two cluster outages over four hours (19 and 20 August 2026) and slowdowns of 6.5 and 20 hours since.\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### Black Forest Labs FLUX API\n\n1. Poll the `polling_url` from the submit response, never a hand-built URL\n2. Download `result.sample` straight away. It's gone after 10 minutes\n3. Stay under 24 concurrent jobs, 6 on flux-kontext-max, and back off exponentially on 429\n4. Treat 402 as out of credit, not as a retryable error\n5. Use api.eu.bfl.ai or api.us.bfl.ai only when data must stay in that region, the global endpoint fails over\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, Black Forest Labs FLUX API or Seedream on BytePlus ModelArk?\n\nBlack Forest Labs FLUX API scores 63.9 (B) on agent readiness against Seedream on BytePlus ModelArk's 53.8 (D), and leads in 3 of 7 scored categories. Seedream on BytePlus ModelArk leads on agent ergonomics and security \u0026 auth.\n\n### Do Black Forest Labs FLUX API and Seedream on BytePlus ModelArk need an API key?\n\nBlack Forest Labs FLUX API takes an API key or an OAuth sign-in. Seedream on BytePlus ModelArk needs an API key.\n\n### Can an agent call Black Forest Labs FLUX API and Seedream on BytePlus ModelArk without installing anything?\n\nYes. Black Forest Labs FLUX API has a hosted endpoint at https://api.bfl.ai/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/black-forest-labs-vs-seedream-on-byteplus-modelark.json, and with the fewest tokens: https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"black-forest-labs\", \"b\": \"seedream-on-byteplus-modelark\"}`. From a terminal: `anchor compare black-forest-labs seedream-on-byteplus-modelark`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/black-forest-labs.json and https://www.anchorterminal.com/api/v1/tools/seedream-on-byteplus-modelark.json\n\n## Other comparisons with Black Forest Labs FLUX API or Seedream on BytePlus ModelArk\n\n- [Adobe Firefly API vs Black Forest Labs FLUX API](https://www.anchorterminal.com/compare/adobe-firefly-vs-black-forest-labs.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 Bria API](https://www.anchorterminal.com/compare/black-forest-labs-vs-bria.md)\n- [Black Forest Labs FLUX API vs fal image models](https://www.anchorterminal.com/compare/black-forest-labs-vs-fal-image.md)\n- [Black Forest Labs FLUX API vs Google Imagen](https://www.anchorterminal.com/compare/black-forest-labs-vs-google-imagen.md)\n- [Black Forest Labs FLUX API vs Ideogram API](https://www.anchorterminal.com/compare/black-forest-labs-vs-ideogram.md)\n- [Black Forest Labs FLUX API vs Leonardo.Ai API](https://www.anchorterminal.com/compare/black-forest-labs-vs-leonardo-ai.md)\n- [Black Forest Labs FLUX API vs OpenAI Image API](https://www.anchorterminal.com/compare/black-forest-labs-vs-openai-image-api.md)\n- [Black Forest Labs FLUX API vs Recraft API](https://www.anchorterminal.com/compare/black-forest-labs-vs-recraft.md)\n- [Black Forest Labs FLUX API vs Replicate image models](https://www.anchorterminal.com/compare/black-forest-labs-vs-replicate-image.md)\n- [Black Forest Labs FLUX API vs Stability AI Image API](https://www.anchorterminal.com/compare/black-forest-labs-vs-stability-ai-image.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 Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/fal-image-vs-seedream-on-byteplus-modelark.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 Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/ideogram-vs-seedream-on-byteplus-modelark.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 Seedream on BytePlus ModelArk](https://www.anchorterminal.com/compare/openai-image-api-vs-seedream-on-byteplus-modelark.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": "2026-10-10", "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": "Black Forest Labs FLUX API vs Seedream on BytePlus ModelArk", "url": "" } ], "description": "Black Forest Labs FLUX scores 63.9 (B) to Seedream on BytePlus ModelArk's 53.8 (D) for image generation. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Black Forest Labs FLUX API B 63.9", "Seedream on BytePlus ModelArk D 53.8", "scores" ], "h1": "Black Forest Labs FLUX API vs Seedream on BytePlus ModelArk", "image": "https://www.anchorterminal.com/assets/og/compare-black-forest-labs-vs-seedream-on-byteplus-modelark.png", "path": "/compare/black-forest-labs-vs-seedream-on-byteplus-modelark", "published": "2026-10-01", "section": "tools", "title": "Black Forest Labs FLUX vs Seedream on BytePlus ModelArk (2026)", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/black-forest-labs-vs-seedream-on-byteplus-modelark" }, "tokens": { "markdown": 2650, "slim": 780 }, "version": 1 }