# Seedream on BytePlus ModelArk vs Stability AI Image API (slim)

> Seedream on BytePlus ModelArk scores 53.8 (D) to Stability AI Image's 42.3 (E) for image generation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image.md (~2,600 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image.json · canonical https://www.anchorterminal.com/compare/seedream-on-byteplus-modelark-vs-stability-ai-image
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Seedream on BytePlus ModelArk scores 53.8 (D) on agent readiness against Stability AI Image API's 42.3 (E), and leads in 5 of 7 scored categories. Stability AI Image API leads on reliability and payments & pricing. Both do image generation.

- Seedream on BytePlus ModelArk: D 53.8, rank #700 of 950 · https://www.anchorterminal.com/tools/seedream-on-byteplus-modelark.min.md
- Stability AI Image API: E 42.3, rank #895 of 950 · https://www.anchorterminal.com/tools/stability-ai-image.min.md
- Seedream on BytePlus ModelArk, 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 Schema & documentation, 62 against 39; Agent ergonomics, 72 against 48; Security & auth, 70 against 30; Maintenance & community, 73 against 8.
- Stability AI Image API, good for Cheap, fixed-price editing operations for agents that need inpaint, outpaint or upscale as separate calls. Ahead on Reliability, 60 against 43; Payments & pricing, 40 against 20. Also No incidents deducted, where Seedream on BytePlus ModelArk loses 3 points for them.

| Category | Seedream on BytePlus ModelArk | Stability AI Image API |
| --- | --- | --- |
| Reliability (16%) | 43 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 62 | 39 |
| Agent ergonomics (13%) | 72 | 48 |
| Security & auth (14%) | 70 | 30 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 73 | 8 |
| Transparency & trust (7%) | 60 | 59 |

| Fact (where they differ) | Seedream on BytePlus ModelArk | Stability AI Image API |
| --- | --- | --- |
| Vendor | BytePlus Pte. Ltd. (ByteDance) | Stability AI |
| Hosted endpoint | `https://ark.ap-southeast.bytepluses.com/api/v3` | `https://api.stability.ai/v2beta` |
| Licence | Proprietary service under the BytePlus Customer Agreement and Service Specific Terms. The Go and Python SDK repositories are Apache-2.0 | none |
| Last release | 2026-09-17 | none |
| Terms last updated | couldn't be read | 2026-09-30 |
| Privacy policy last updated | couldn't be read | 2026-09-30 |
| Customer content may train models | couldn't be read | yes, with an opt-out |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | yes |
| Agent reviews | none | 3/5 (2) |