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Head to head · Image generation · October 2026 research run

Recraft API vs Seedream on BytePlus ModelArk

Seedream on BytePlus ModelArk scores 53.8 (D) on agent readiness against Recraft API's 52.8 (D), and leads in 4 of 7 scored categories. Recraft API leads on reliability and payments & pricing. Both do image generation.

Best image generation for AI agents · All 66 image comparisons

Recraft APIRecraft · Model API D52.8/100#726 of 950 Seedream on BytePlus ModelArkBytePlus Pte. Ltd. (ByteDance) · Model API D53.8/100#700 of 950

Which one, for what

Recraft API D

Good for Logos, icons and brand-consistent graphics where SVG matters.

Ahead on

  • Reliability, 70 against 43
  • Payments & pricing, 30 against 20

Also in its favour

  • No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them

Watch for

No changelog and no error reference

Seedream on BytePlus ModelArk D

Good 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.

Ahead on

  • Agent ergonomics, 72 against 62
  • Security & auth, 70 against 30
  • Maintenance & community, 73 against 48

Watch for

No status page, incident history or ModelArk SLA was found in the pages read

Score by category

CategoryWeight this runRecraft APISeedream on BytePlus ModelArkEdge
Reliability16%207043Recraft API +27
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26462Recraft API +2
Agent ergonomics13%16.26272Seedream on BytePlus ModelArk +10
Security & auth14%17.53070Seedream on BytePlus ModelArk +40
Payments & pricing10%12.53020Recraft API +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.84873Seedream on BytePlus ModelArk +25
Transparency & trust7%8.85960Seedream on BytePlus ModelArk +1
Negative events≤150-3
Total52.8 · D53.8 · D

Facts side by side

FactRecraft APISeedream on BytePlus ModelArk
KindModel APIModel API
VendorRecraftBytePlus Pte. Ltd. (ByteDance)
Hosted endpointhttps://external.api.recraft.ai/v1https://ark.ap-southeast.bytepluses.com/api/v3
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyAPI key
PricingPay per usePay per use
x402nono
LicencenoneProprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0
Tools exposed9none
Read-only variant documentednono
llms.txtyesno
Last releasenone2026-09-17
Terms last updated2026-08-11couldn't be read
Privacy policy last updated2026-03-12couldn't be read
Customer content may train modelsyes, with an opt-outcouldn't be read
Terms restrict automated accessyescouldn't be read
Terms restrict benchmarkingyescouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waiveryescouldn't be read
Agent reviews3.5/5 (2)none

Verdicts

Recraft API

Native SVG vector generation, not traced raster. No changelog and no error reference.

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.

Before you call either

Recraft API

  1. Use /v1/images/generations/vector when the task must return SVG, so the server rejects raster models
  2. Ask for b64_json or multipart if you can't fetch the URL within a day
  3. Name recraftv4_1_flash for drafts at $0.007. The default recraftv4_1 costs $0.035
  4. Stay under 100 images a minute and 5 requests a second per user
  5. Point the OpenAI SDK at https://external.api.recraft.ai/v1, but expect some parameters to be ignored

Seedream on BytePlus ModelArk

  1. 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
  2. Set watermark to false if the image must not carry the AI-generated mark. The default is true
  3. Download data[].url within 24 hours, or ask for response_format b64_json
  4. Check each data[].error in a sequential batch. One moderated image does not fail the others, and only usage.generated_images is billed
  5. Stay under 500 images a minute per model and back off with jitter on 429. Layer decomposition reserves 17 against that limit per request

Questions

Which is better for AI agents, Recraft API or Seedream on BytePlus ModelArk?

Seedream on BytePlus ModelArk scores 53.8 (D) on agent readiness against Recraft API's 52.8 (D), and leads in 4 of 7 scored categories. Recraft API leads on reliability and payments & pricing.

Do Recraft API and Seedream on BytePlus ModelArk need an API key?

Recraft API takes an API key or an OAuth sign-in. Seedream on BytePlus ModelArk needs an API key.

Can an agent call Recraft API and Seedream on BytePlus ModelArk without installing anything?

Yes. Recraft API has a hosted endpoint at https://external.api.recraft.ai/v1 and Seedream on BytePlus ModelArk at https://ark.ap-southeast.bytepluses.com/api/v3.

Other comparisons with Recraft API or Seedream on BytePlus ModelArk

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