Mouse-1 is a fast, low-cost decision model that plugs into agent harnesses to handle routing, gating and verification.

Mouse-1 works by combining Decision Layer for Agents: Takes agent state and options and returns probabilities so the harness can route, gate and verify., About 100 ms Latency: Answers faster than a chat model's first token., Batch Decisions: One request answers up to 128 questions., Prompt-Injection Resistance: Chooses only from supplied options; planted instructions changed 0% of decisions in vendor tests., Zero Data Retention: Requests are scored and dropped, never stored or used for training. to help users with Agent Routing: Deciding which model or tool an agent should use next., Action Gating: Approving or blocking risky agent actions cheaply., Content Moderation: Classifying images or text as safe or unsafe., Document Routing: Sending invoices, contracts and IDs to the right workflow., Browser Agents: Detecting screen state such as login required or error..

Key features include Decision Layer for Agents: Takes agent state and options and returns probabilities so the harness can route, gate and verify., About 100 ms Latency: Answers faster than a chat model's first token., Batch Decisions: One request answers up to 128 questions., Prompt-Injection Resistance: Chooses only from supplied options; planted instructions changed 0% of decisions in vendor tests., Zero Data Retention: Requests are scored and dropped, never stored or used for training..

Mouse-1 is useful for anyone interested in Agent Routing: Deciding which model or tool an agent should use next., Action Gating: Approving or blocking risky agent actions cheaply., Content Moderation: Classifying images or text as safe or unsafe., Document Routing: Sending invoices, contracts and IDs to the right workflow., Browser Agents: Detecting screen state such as login required or error..

Mouse-1 is a paid product. Check the official site for current pricing.

Visit https://mouse.dev/api to sign up and explore Mouse-1.