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llmix v2.2.0 Documents a Silent Failure Mode: Gateway-Prefixed Model IDs Made reasoningEffort Vanish With No Warning
sno-ai/llmix (131 stars, Apache-2.0) released v2.2.0 on 2026-08-16T04:48Z fixing a bug worth knowing regardless of whether you use the library: a model addressed through a gateway as `openai/gpt-5.6-luna` or `z-ai/glm-5.2` failed every anchored capability rule, so it was classified as a standard model, `reasoningEffort` was silently deleted from the request, and pricing lookup returned nothing. Setting an effort level had no effect and produced no warning. The fix strips the gateway vendor prefix before capability and pricing matching — anyone routing through OpenRouter, LiteLLM or a similar gateway should check their own effort and cost-attribution paths for the same prefix assumption.
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