{"version":"2.1.247","anchor":"sonnet-5-default-context-window-raised-to-1-000-000-tokens","canonical_anchor":"sonnet-5-default-context-window-raised-to-1-000-000-tokens","heading":"Sonnet 5 default context window raised to 1,000,000 tokens","tier":"notice","area":"Models","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.247\/e\/sonnet-5-default-context-window-raised-to-1-000-000-tokens","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.247","markdown":"### Sonnet 5 default context window raised to 1,000,000 tokens\n\nSonnet 5's default context window is now a full million tokens, up from 967,000.\n\n**What**\n\nThe built-in context size for `claude-sonnet-5` went from 967,000 to 1,000,000 tokens. The smaller 500,000 limits used for remote cowork and local agent runs are unchanged.\n\n**Evidence**\n\n`\"claude-sonnet-5\"`\n\n- Area: Models\n- Names: `claude-sonnet-5`\n- Tier: You'll notice\n- Useful: 5\/5\n- Signal: 3\/5"}