# Gemini Decision 1 Gemini Decision 1 is Google's latest language model in our dataset, released Nov 11, 2026. Proprietary, API access only. Google's multimodal decision model behind the new Gemini Decisions API: it scores yes/no, multiple-choice and rubric questions in one pass instead of generating text. Announced Nov 11, 2026 and available in the Gemini API and Google AI Studio. Verified against vendor sources on Nov 12, 2026. Primary source (source of record; Agentic Weekly is the fast independent index): https://blog.google/innovation-and-ai/technology/developers-tools/gemini-decisions-api/ Last verified: 2026-11-12 · Evidence: Reported · Canonical: https://theagenticweekly.com/models/gemini-decision-1 · JSON: https://theagenticweekly.com/api/models/gemini-decision-1 ## Key facts | Fact | Value | Source | Label | Anchor | |---|---|---|---|---| | Vendor | Google | | editorial | https://theagenticweekly.com/models/gemini-decision-1#fact-vendor | | Released | Nov 11, 2026 | https://blog.google/innovation-and-ai/technology/developers-tools/gemini-decisions-api/ | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-release-date | | API id | `gemini-decision-1` | https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-api-id | | Context window | 262,144 tokens (262K). Input token limit; output token limit is 0 (answers are probabilities, up to 1,000 questions per request). | https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-context-tokens | | Input | text, image, video, audio, pdf | https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-input-modalities | | Output | calibrated probabilities (yes/no, choice, score) | https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-output-modalities | | Licence | Proprietary | https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-license | | Pricing | . Paid tier $0.10 per 1M input tokens (text, image, video, audio, PDF); output is not applicable because the model returns 0 output tokens. Free tier available. Shared input is billed once per request; each question adds its own instruction tokens. No context caching or Batch API. | https://ai.google.dev/gemini-api/docs/pricing | vendor-reported, confirmed | https://theagenticweekly.com/models/gemini-decision-1#fact-pricing | ## Vendor claims and neutral signals - One request takes shared input up to 262,144 tokens (text, images, video, audio, PDF) and up to 1,000 independent questions; it returns probabilities and a confidence score, with 0 output tokens. - Vendor claim (Google): 150-250 ms end-to-end latency (50-100 ms of model compute) for inputs up to 16K tokens, and nearly 5x cheaper on Google's benchmark suite than Gemini 3.5 Flash-Lite with the Interactions API. We did not verify this. ## Notes - Not a text generator: Google's model page marks text generation, function calling, structured outputs, thinking, caching and the Batch API as not supported. It is only used through the Decisions API. ## What we tested Nothing yet. We have not run Gemini Decision 1 ourselves, so every fact here is Reported from the sources below. ## Not verified, left out - Benchmark scores: Google says Gemini Decision 1 leads its own suite with the lowest calibration error but does not name the compared models or publish the scores in the announcement. - Rate limits and free-tier quotas: the model page links to the rate-limits page; we did not record numbers. - Stability: Google's sample code uses the v1beta API version and no separate general-availability or deprecation date is stated. ## Alternatives to Gemini Decision 1 Models from other vendors that share at least one of our groups, from each model's sourced facts (not tested by us). - [Muse Ember](https://theagenticweekly.com/models/muse-ember) (Meta): Both in: Small and fast, Agents · $0.1 in / $0.5 out per 1M tokens · 1.05M context · released Nov 9, 2026 - [GPT-6.1 Terra](https://theagenticweekly.com/models/gpt-6-1-terra) (OpenAI): Both in: Agents, Small and fast · $1 in / $5 out per 1M tokens · 1.05M context · released Oct 26, 2026 - [Mercury 3](https://theagenticweekly.com/models/mercury-3) (Inception): Both in: Small and fast, Agents · $0.1 in / $0.35 out per 1M tokens (launch promo, end date not stated; list $0.2 / $0.7) · 1M context · released Oct 19, 2026 - [MiniMax M3.1 Flash](https://theagenticweekly.com/models/minimax-m3-1-flash) (MiniMax): Both in: Agents, Small and fast · $0.15 in / $0.6 out per 1M tokens · 1M context · released Oct 19, 2026 - [Claude Haiku 5.5](https://theagenticweekly.com/models/claude-haiku-5-5) (Anthropic): Both in: Small and fast, Agents · $0.1 in / $0.5 out per 1M tokens · 1M context · released Oct 7, 2026 - [Claude Fable 5.2](https://theagenticweekly.com/models/claude-fable-5-2) (Anthropic): Both in: Agents · $8 in / $40 out per 1M tokens · 1M context · released Nov 9, 2026 - [Best AI model for agents (Nov 2026): Claude Opus 5.5 leads Terminal-Bench 4.0](https://theagenticweekly.com/best/ai-model-for-agents) ## Gemini Decision 1 FAQ **When was Gemini Decision 1 released?** Google released Gemini Decision 1 on Nov 11, 2026. Source: https://blog.google/innovation-and-ai/technology/developers-tools/gemini-decisions-api/ **How large is the Gemini Decision 1 context window?** 262,144 tokens. Source: https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 **Is Gemini Decision 1 open weights?** No. The weights are not published; the licence is listed as Proprietary. Source: https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 **What is the API model id for Gemini Decision 1?** gemini-decision-1. Source: https://ai.google.dev/gemini-api/docs/models/gemini-decision-1 **Has Agentic Weekly tested Gemini Decision 1?** Not yet. Every fact on this page is Reported: read from the linked vendor pages, not measured by us. ## Sources - [Google blog: Gemini Decisions API announcement (Nov 11, 2026)](https://blog.google/innovation-and-ai/technology/developers-tools/gemini-decisions-api/) - [Gemini API docs: Gemini Decision model page](https://ai.google.dev/gemini-api/docs/models/gemini-decision-1) - [Gemini API pricing: Gemini Decision](https://ai.google.dev/gemini-api/docs/pricing) Data licence: CC BY 4.0. Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0.