Respan

LLM gateway, observability and evals platform, formerly Keywords AI

respan.ai

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Respan, formerly Keywords AI, builds an open-source AI gateway and observability platform for developers of LLM applications and agents. It combines a single API for many models with tracing, evaluations and monitoring, and has released the Span series of models.

Catalogue

All models by Respan

3 models · 1–3
Select models to compareModelReleasedContextInput /MOutput /MParametersTypeI/OOpenness
Span-02RespanOctober 15, 2026131K$0.01$0.0015.8BDecisionstext, image → decisionsOpen weights
Span-01RespanSeptember 26, 2026—$0.02$0.00—Decisionstext → decisionsUnknown
Span-01 LiteRespanSeptember 26, 2026—$0.00$0.00—Decisionstext → decisionsClosed
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