{"version":"2.1.302","anchor":"claude-opus-5-added-to-a-model-list","canonical_anchor":"claude-opus-5-added-to-a-model-list","heading":"claude-opus-5 joins a model list used in a capability check","tier":"internal","area":"Models","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302\/e\/claude-opus-5-added-to-a-model-list","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302","markdown":"### claude-opus-5 joins a model list used in a capability check\n\nClaude Code now lists claude-opus-5 alongside other models in a list that one of its checks looks at\n\n**Unclear.** Which feature or behaviour this check controls is not stated.\n\n**What**\n\nClaude Code has a list of models that one of its checks looks at. A new version of that list adds `claude-opus-5` to the existing models. The check gives a yes when the model in use is not on the list, so `claude-opus-5` now gives a no.\n\n**Why**\n\nOpus 5 is now treated the same way as the other listed models for this check.\n\n- Area: Models\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 4\/5\n- Scope: individual\n- Heads-up: no"}