Span-01 and Span-01 Lite from @RespanAI are live on OpenRouter.

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Span-01 and Span-01 Lite from @RespanAI are live on OpenRouter. They're decision models for agent traces. Send a span and the behaviors you care about, and get back the probability each one is present, like "is the user frustrated?" or "is this tool call safe to run?" https://twitter.com/1764846383004262400/…

RespanAI@RespanAI3d ago

Introducing Span-01, the first hyper-parallel reasoning classifier built for unseen challenges (RLAIF). 2x cheaper, 18% better than Jev. 700x cheaper, 4% better than GPT-6 Luna. Frontier reasoning for every behavior, at classifier speed. • Span-01: #1 on Behavior Benchmark • Span-01 Lite: Better than Jev and completely free!