* feat(anthropic): migrate 1M context from beta to GA
Anthropic has graduated the 1M context window from beta to GA.
This commit:
- Stops injecting the context-1m-2025-08-07 beta header when
context1m: true is configured
- Removes the OAuth token skip logic that was needed because
Anthropic previously rejected the context-1m beta with OAuth auth
(OAuth now supports 1M natively)
- Strips the legacy beta header from user-configured anthropicBeta
arrays to prevent sending a stale header
- Removes the now-unused isAnthropic1MModel helper,
ANTHROPIC_1M_MODEL_PREFIXES constant, and logger import from
the stream wrappers
The context1m config param continues to be respected for context
window sizing in context.ts — only the beta header injection is
removed.
Closes#45550 (Phase 1)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat(anthropic): migrate 1M context handling to GA
* fix(clownfish): address review for ghcrawl-156721-autonomous-smoke (1)
* fix(anthropic): restrict ga 1m context models
* docs(anthropic): align ga 1m context guidance
* fix(anthropic): normalize ga 1m model metadata
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: vincentkoc <25068+vincentkoc@users.noreply.github.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
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