pydecide: one Python client and fallback chain for Jev, OpenRouter, Laya, cross-encoders

pydecide</h1>

<p><b>One Python client for typed decisions, with a confidence gate between the cheap model and the good one.</b></p>

<p>
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</p>

<picture>
  <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/gopaljigaur/decide/main/docs/chain-dark.svg">
  <img alt="A state and three typed questions enter tier one, a 22M parameter cross-encoder. A confidence gate sends the questions it was not sure about to tier two, Laya. The response carries both the answers and the route." src="https://raw.githubusercontent.com/gopaljigaur/decide/main/docs/chain-light.svg" width="920">
</picture>

</div>

Routing, triage and guardrail calls do not need a chat model. A decision model
takes a state and typed questions (pick one of these, score this, yes or no)
and answers with probabilities, in milliseconds. `pydecide` speaks to all of
them through one API: TypeSafe's hosted Jev, OpenRouter, OpenAI's Decisions
endpoint, the open-weight laya family on PyTorch and MLX, any
sentence-transformers CrossEncoder, and a JSON-prompted LLM as a last resort.

The reason to use i