The claude-thinking-legacy-alias pattern previously matched both
claude-opus-4-6-thinking and claude-opus-4-7-thinking and mapped
them to claude-opus-4-7. After models.dev started shipping
claude-opus-4-6-thinking as a real canonical model (e.g.
302ai/claude-opus-4-6-thinking), the pattern collides with the
snapshot and trips the pattern-alias-collides-with-snapshot
guardrail in collectModelCapabilityGuardrailIssues, which is what
has been failing the refresh-model-capabilities cron since
2026-04-20.
Tightening the regex to only match claude-opus-4-7-thinking
preserves the legacy-id rewrite for the still-non-canonical
4-7-thinking form while letting 4-6-thinking resolve to itself.
Refs #3635
Updates the canonical Anthropic Opus model in every fallback chain
(sisyphus, oracle, prometheus, metis, momus, visual-engineering,
ultrabrain, deep, artistry, unspecified-high), the unspecified-high
category default, the think-mode HIGH_VARIANT_MAP, the Claude Code
alias map, the claude-thinking legacy alias, the context-limit GA
regex, and event.ts fallback strings.
Widens supportsCachedAnthropicLimit to accept both claude-*-4-6 and
claude-*-4-7 so the 1M context cache still applies across the bump.
Regenerates the bundled model-capabilities snapshot from models.dev
and the model-fallback snapshot to match the new source output.
YeonGyu-Kim