{"version":"2.1.287","anchor":"bedrockvertex-model-probes-skip-unavailable-ids","canonical_anchor":"bedrockvertex-model-probes-skip-unavailable-ids","heading":"Bedrock and Vertex model checks skip models flagged as unavailable","tier":"notice","area":"Models","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287\/e\/bedrockvertex-model-probes-skip-unavailable-ids","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287","markdown":"### Bedrock and Vertex model checks skip models flagged as unavailable\n\nOn Bedrock and Vertex, Claude Code now skips models flagged as unavailable when checking upgrade and fallback options\n\n**Unclear.** How Claude Code decides that a model is unavailable is not shown.\n\n**What**\n\nWhen Claude Code runs through Amazon Bedrock or Google Vertex AI, it tries candidate models to find an upgrade or a fallback (a model to use when the first choice is not available). It now skips any candidate flagged as unavailable and writes a log message instead of trying it.\n\nFor Opus, the fallback to Sonnet can now also consider Sonnet's own fallback models.\n\n**Why**\n\nClaude Code no longer spends checks on models that are already known to be missing.\n\n- Area: Models\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5"}