{"version":"2.1.233","anchor":"warning-when-an-unrecognized-model-is-sent-to-the-api","canonical_anchor":"warning-when-an-unrecognized-model-is-sent-to-the-api","heading":"Warning when an unrecognized model is sent to the API","tier":"notice","area":"Elsewhere","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.233\/e\/warning-when-an-unrecognized-model-is-sent-to-the-api","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.233","markdown":"### Warning when an unrecognized model is sent to the API\n\nYou get a one-time warning line if a query names a model Claude Code does not recognise.\n\n**What**\n\nIf a query names a model Claude Code does not recognize, it now warns once per model, printing a line starting with `[claude-code:unrecognized_model]` followed by the model name and where the query came from.\n\n**Details**\n\n- In non-interactive sessions the line goes to stdout, except when `CLAUDE_CODE_SESSION_KIND` is `bg`, where it is logged at warn level instead.\n- Also fires the telemetry event `tengu_api_unrecognized_model` with the model and query source.\n- The warning fires at most once per distinct model per session.\n\n**Evidence**\n\n`[claude-code:unrecognized_model]`\n\n- Area: Elsewhere\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5"}