# OpenAI Decisions API vs Vela 2.0 (slim)

> OpenAI Decisions API scores 71.5 (BB) on agent readiness against Vela 2.0's 66.5 (B), and leads in 4 of 7 scored categories. Vela 2.0 leads on payments & pricing and maintenance & community. Both do inference decision. Category scores, facts, verdicts and agent notes side by…

- Full: https://www.anchorterminal.com/compare/openai-decisions-api-vs-vela.md (~2,350 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/openai-decisions-api-vs-vela.json · canonical https://www.anchorterminal.com/compare/openai-decisions-api-vs-vela
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

OpenAI Decisions API scores 71.5 (BB) on agent readiness against Vela 2.0's 66.5 (B), and leads in 4 of 7 scored categories. Vela 2.0 leads on payments & pricing and maintenance & community. Both do inference decision.

- OpenAI Decisions API: BB 71.5, rank #102 of 629 · https://www.anchorterminal.com/tools/openai-decisions-api.min.md
- Vela 2.0: B 66.5, rank #219 of 629 · https://www.anchorterminal.com/tools/vela.min.md
- OpenAI Decisions API, good for High-volume yes or no checks, routing among fixed options and rubric scoring over text and images, for teams already on an OpenAI key. Ahead on Schema & documentation, 89 against 78; Agent ergonomics, 87 against 79; Security & auth, 83 against 60; Transparency & trust, 83 against 48. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install.
- Vela 2.0, good for Self-hosted routing and guardrail checks in one call, where span offsets for personal data or unsupported claims matter. Ahead on Payments & pricing, 60 against 30; Maintenance & community, 84 against 77. Also No key needed to call it; Open source.

| Category | OpenAI Decisions API | Vela 2.0 |
| --- | --- | --- |
| Reliability (16%) | 53 | 57 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 78 |
| Agent ergonomics (13%) | 87 | 79 |
| Security & auth (14%) | 83 | 60 |
| Payments & pricing (10%) | 30 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 77 | 84 |
| Transparency & trust (7%) | 83 | 48 |

| Fact (where they differ) | OpenAI Decisions API | Vela 2.0 |
| --- | --- | --- |
| Vendor | OpenAI | vLLM Semantic Router project and KR Labs |
| Hosted endpoint | `https://api.openai.com/v1/decisions` | no (local only) |
| Auth | API key | None |
| Pricing | Pay per use | Free |
| Price for inference decision | $0.10 per 1M tokens | free |
| Licence | Proprietary service under OpenAI's services agreement. The official SDKs are Apache-2.0 | Apache-2.0 (weights, code and documentation). The 0.3B's tokeniser keeps the Gemma Terms of Use, and training data keeps its own licences |
| llms.txt | yes | no |
| Terms last updated | couldn't be read | no document linked |
| Privacy policy last updated | couldn't be read | no document linked |
| Customer content may train models | couldn't be read |  |
| Terms restrict automated access | couldn't be read |  |
| Terms restrict benchmarking | couldn't be read |  |
| Terms or service can change without notice | couldn't be read |  |
| Arbitration or class-action waiver | couldn't be read |  |
| Popularity | 32k stars | 6.1k stars |