Add New Model

Wire a newly-released provider model into pydantic-ai. Optimized for the common case (mirror an existing sibling); flags the cases where it's not a mirror and needs deeper work.

Reference docs (read once before scoping)

• agent_docs/pydantic-ai-slim.md — the Ownership section, plus pydantic_ai_slim/pydantic_ai/native_tools/AGENTS.md, for the user-visible surface this model needs to land on.
• pydantic_ai_slim/pydantic_ai/profiles/AGENTS.md, providers/AGENTS.md, models/AGENTS.md, and pydantic_ai_slim/pydantic_ai/AGENTS.md (the capability-flag and Provider.model_profile() rules), plus the Design Rules section of agent_docs/pydantic-ai-slim.md. These tell you where capability facts belong (profile vs. provider vs. model class) when the new id has non-mirror behavior.

Inputs

User invokes with provider + model id (e.g. openai gpt-5.6). If missing, ask via AskUserQuestion.

Step 1 — Verify the model exists at the provider

Never trust marketing names, news articles, or guesses. Hit the provider's model-listing endpoint: