{"name":"claude-3-7-sonnet","slug":"claude-3-7-sonnet","family":"model","title":"Models","noun":"model","description":"Switching to any Sonnet model name ending in [1m] now checks for 1M-context access, except four older Sonnet models","description_source":"entry","described_by":{"version":"2.1.283","anchor":"sonnet-1m-context-availability-check-now-covers-any-sonnet"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.309","builds":0,"mined_builds":150,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.283","anchor":"sonnet-1m-context-availability-check-now-covers-any-sonnet","heading":"The Sonnet 1M-context check now covers full Sonnet model names","line":"Switching to any Sonnet model name ending in [1m] now checks for 1M-context access, except four older Sonnet models","released_at":"2026-09-25 18:46:11","reason":"found in this entry's text"},{"version":"0.2.105","anchor":"enhanced-model-selection","heading":"Enhanced Model Selection","line":null,"released_at":"2025-05-08 16:41:34","reason":"found in this entry's text"}],"entries_total":2,"docs":[{"source":"api","path":"about-claude\/model-deprecations","title":"model-deprecations","documented":false},{"source":"api","path":"about-claude\/models\/migration-guide","title":"Or, for the model with the same capabilities and no access approval requirement:","documented":false},{"source":"api","path":"release-notes\/overview","title":"overview","documented":false},{"source":"api","path":"release-notes\/system-prompts\/claude-haiku-3-5","title":"claude-haiku-3-5","documented":false},{"source":"api","path":"release-notes\/system-prompts\/claude-sonnet-3-7","title":"claude-sonnet-3-7","documented":false},{"source":"api","path":"resources\/overview","title":"overview","documented":false}],"docs_total":6,"gates":[],"related":[{"name":"claude-3-5-haiku","slug":"claude-3-5-haiku","description":"Haiku 3.5 in Claude Code's model table (display name `Haiku 3.5`, family `haiku`). It maps to `claude-3-5-haiku-20241022` on the first-party API, `us.anthropic.claude-3-5-haiku-20241022-v1:0` on Bedrock and `claude-3-5-haiku@20241022` on Vertex, takes its Vertex region from `VERTEX_REGION_CLAUDE_3_5_HAIKU`, and has a maximum output of `8192` tokens."},{"name":"claude-3-5-sonnet","slug":"claude-3-5-sonnet","description":"Switching to any Sonnet model name ending in [1m] now checks for 1M-context access, except four older Sonnet models"},{"name":"claude-3-opus","slug":"claude-3-opus","description":"Claude Code now keeps a list of the older Claude 3 models and a check for whether the current model is outside it"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/model\/claude-3-7-sonnet","family_url":"https:\/\/changelogs.core-directive.com\/reference\/model.json"}