OpenRouter Launches Free Structured Decision Model mercury-decide:free

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OpenRouter has launched the free model inception/mercury-decide:free, citing MetaEra. The model, with a 33K context length, was released on September 30, 2026. It uses the OpenRouter Decisions API to answer typed questions, returning calibrated probabilities for structured decisions. It is not designed for chat and operates exclusively on the Decisions API. Performance metrics show a P50 latency of 0.43 seconds, 100% uptime over three days, and 99.99% availability within 24 hours. This on-chain news update highlights its use cases in routing and validation.
ME AI message: OpenRouter has hosted and is providing the model inception/mercury-decide:free at no cost, with a context length of 33K, released on September 30, 2026. This model does not generate text; instead, it answers typed questions about state (string, object, or array) via the OpenRouter Decisions API, returning calibrated probabilities including yes/no probabilities (noul), custom option selection (choice), or ordered scoring (score), designed for structured decision-making scenarios such as routing, ranking, and validation—not chat. When calling, specify state and questions (containing type, instructions, criteria); in the response, noul is a probability between 0 and 1, while choice and score carry full distributions. The model runs on the Decisions API, not on OpenAI-compatible chat endpoints, and cannot be used with chat completion SDKs. In terms of latency, the P50 best provider is 0.43 seconds; uptime over the past 3 days is 100.00%, availability is 99.94%, and availability over the past 24 hours is 99.99%. In case of upstream errors, it automatically routes to other healthy providers, and uptime data can be retrieved via the Endpoints API. (Source: InFoQ)
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