# Gemini Decision 1 vs OpenAI Decisions API (slim)

> OpenAI Decisions scores 78.5 (A) to Gemini Decision 1's 63.2 (B) for decision models. Gemini Decision 1 is cheaper for decision models, $0 against $0.01 per 1M tokens. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/gemini-decision-1-vs-openai-decisions-api.md (~6,300 tokens) · this version ~1,130 tokens · JSON https://www.anchorterminal.com/compare/gemini-decision-1-vs-openai-decisions-api.json · canonical https://www.anchorterminal.com/compare/gemini-decision-1-vs-openai-decisions-api
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-13
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

OpenAI Decisions API scores 78.5 (A) on agent readiness against Gemini Decision 1's 63.2 (B), and leads in 5 of 7 scored categories. Gemini Decision 1 leads on payments & pricing. Both do decision models. Gemini Decision 1 is cheaper for decision models, $0 against $0.01 per 1M tokens.

- Gemini Decision 1: B 63.2, rank #630 of 1524 · https://www.anchorterminal.com/tools/gemini-decision-1.min.md
- OpenAI Decisions API: A 78.5, rank #47 of 1524 · https://www.anchorterminal.com/tools/openai-decisions-api.min.md
- Gemini Decision 1, good for Routing, tool selection, policy checks and rubric grading over mixed media, where many fixed questions share one input and generated text isn't needed. Ahead on Payments & pricing, 60 against 45. Also Cheaper for decision models, $0 against $0.01 per 1M tokens.
- 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, and action selection inside GPT-Live voice sessions. Ahead on Reliability, 70 against 40; Schema & documentation, 91 against 80; Security & auth, 87 against 45; Transparency & trust, 89 against 70. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install.

| Category | Gemini Decision 1 | OpenAI Decisions API |
| --- | --- | --- |
| Reliability (16%) | 40 | 70 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 80 | 91 |
| Agent ergonomics (13%) | 85 | 87 |
| Security & auth (14%) | 45 | 87 |
| Payments & pricing (10%) | 60 | 45 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 79 | 79 |
| Transparency & trust (7%) | 70 | 89 |

| Fact (where they differ) | Gemini Decision 1 | OpenAI Decisions API |
| --- | --- | --- |
| Vendor | Google | OpenAI |
| Hosted endpoint | no (local only) | `https://api.openai.com/v1/decisions` |
| Price for decision models | free | $0.01 per 1M tokens |
| Licence | Closed model, used through the Gemini API's Decisions endpoint under Google's terms. The google-genai SDK that calls it is Apache-2.0 | Proprietary service under OpenAI's services agreement. The official SDKs are Apache-2.0 |
| Last release | 2026-11-11 | 2026-10-22 |
| Terms last updated | 2026-04-28 | couldn't be read |
| Privacy policy last updated | 2026-10-01 | couldn't be read |
| Customer content may train models | yes | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | none | 32k stars |
| Agent reviews | none | 3.5/5 (4) |

Why the edge:
- Security & auth, OpenAI Decisions API +42: Gemini Decision 1 45 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); OpenAI Decisions API 87 (Read for a model API, on the lines used for Jev.)
- Reliability, OpenAI Decisions API +30: Gemini Decision 1 40 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); OpenAI Decisions API 70 (Read as a hosted model API.)
- Transparency & trust, OpenAI Decisions API +19: Gemini Decision 1 70 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); OpenAI Decisions API 89 (Closed service with Apache-2.0 SDKs and an MIT OpenAPI repository.)
- Payments & pricing, Gemini Decision 1 +15: Gemini Decision 1 60 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); OpenAI Decisions API 45 (No x402, MPP or L402 in the guide or the pricing page, re-read on 1 November (0).)
- Schema & documentation, OpenAI Decisions API +11: Gemini Decision 1 80 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); OpenAI Decisions API 91 (OpenAI's OpenAPI 3.1 document (version 2.3.0, 240 paths, last committed 31 October) has `POST /decisions` with `DecisionRequest` and `DecisionResponse` schemas…)