Claude Haiku 5.5, Mistral Large 4, Gemini 4 Argon and 21 more embedding models
Twelve new language models are certified: Claude Haiku 5.5, Mistral Large 4, Gemini 4 Argon, Mercury 3, MiniMax M3.1 Flash, DeepSeek V4.1 Flash 1017, Muse Spark Open, Muse Wonder 1.0, Nemotron 3.5 Super VL, LFM2.5 24B, Apex and Glimpse. POST /v1/embeddings adds Voyage 4, Cohere Embed v5, Gemini Embedding 2, Qwen3 Embedding, Titan Text v2, Codestral Embed, Perplexity and more.
Every new language model serves chat completions, the Messages API and the Responses API. Models served by more than one provider had their tool calls and JSON output probed, so requests that send tools or a schema start on the providers that got them right.
34 embedding routes are now certified, up from 11. Directives that require zero data retention or no training apply to them as to every other route.
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