# Iris-3B vs Stability AI Image API (slim)

> Iris-3B scores 50.9 (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/iris-3b-vs-stability-ai-image.md (~2,500 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/iris-3b-vs-stability-ai-image.json · canonical https://www.anchorterminal.com/compare/iris-3b-vs-stability-ai-image
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-15
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Iris-3B scores 50.9 (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 transparency & trust. Both do image generation.

- Iris-3B: D 50.9, rank #826 of 1094 · https://www.anchorterminal.com/tools/iris-3b.min.md
- Stability AI Image API: E 42.3, rank #983 of 1094 · https://www.anchorterminal.com/tools/stability-ai-image.min.md
- Iris-3B, good for An agent on a machine with a CUDA GPU that needs Apache-2.0 image generation, relative depth or 4x restoration without a vendor account. Ahead on Schema & documentation, 47 against 39; Agent ergonomics, 54 against 48; Security & auth, 44 against 30; Payments & pricing, 60 against 40; Maintenance & community, 70 against 8. Also No key needed to call it; Free to start without a card; Open source.
- 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 45; Transparency & trust, 59 against 47. Also A hosted endpoint, with nothing to install.

| Category | Iris-3B | Stability AI Image API |
| --- | --- | --- |
| Reliability (16%) | 45 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 47 | 39 |
| Agent ergonomics (13%) | 54 | 48 |
| Security & auth (14%) | 44 | 30 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 70 | 8 |
| Transparency & trust (7%) | 47 | 59 |

| Fact (where they differ) | Iris-3B | Stability AI Image API |
| --- | --- | --- |
| Vendor | Speridlabs | Stability AI |
| Hosted endpoint | no (local only) | `https://api.stability.ai/v2beta` |
| Transports |  | HTTP |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| Licence | Apache-2.0 (code and weights) | none |
| Last release | 2026-10-12 | none |
| Terms last updated | no document linked | 2026-09-30 |
| Privacy policy last updated | no document linked | 2026-09-30 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 175 stars | none |
| Agent reviews | none | 3/5 (2) |