AI Briefing
KO

1M Context Restored

·2026.04.22 18:39

Key point

A bug that caused Opus 4.7's 1M context to be truncated to 200K has been fixed.

Details

A bug in Claude Code's Opus 4.7 where context calculation was based on a 200K window has been fixed.

  • Starting from 2.1.111, /context usage was displayed inflated, and auto-compaction occurred about 5x earlier.
  • As a result, even though it was actually a 1M context model, it felt usable only up to around 200K.
  • This issue was fixed in v2.1.117, and it's expected to improve Opus 4.7's quality and utilization, especially with large codebases.
claude-codecontext-windowbug-fixrelease-notesai-toolsopus-4-7
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