{"version":"2.1.280","anchor":"opus-55-model-reference-appears-in-the-model-picker-ui","canonical_anchor":"opus-55-model-reference-appears-in-the-model-picker-ui","heading":"Opus 5.5 model reference appears in the model picker UI","tier":"notice","area":"Models","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/opus-55-model-reference-appears-in-the-model-picker-ui","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### Opus 5.5 model reference appears in the model picker UI\n\nThe model picker now applies its special styling to \"Opus 5.5\" instead of \"Fable 5.1\"\n\n**Unclear.** The finding does not say whether Opus 5.5 is an available or announced model, only that its name now appears in this styling code.\n\n**What**\n\nThe model picker's description formatting, which applies special styling and strikes through a promotional price for one particular model, now targets \"Opus 5.5\" instead of \"Fable 5.1\", matching a new model ID, `claude-opus-5-5`, that appears in the system prompt.\n\n**Why**\n\nThis is a UI update reflecting a new model reference, `Opus 5.5`, showing up in Claude Code's model picker.\n\n- Area: Models\n- Names: `claude-opus-5-5`\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 2\/5"}