Unverified50% confidenceFactExact time
In Claude Code, different models have different default Effort levels: Opus 4.7 defaults to X High, the 5.5 series defaults to Medium, and other models default to High.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/17/2026
First Seen
Valid until: 1/15/2027
Sources
Related Entities
Related Claims
UnverifiedIn practice, 4-bit to 8-bit quantized versions perform nearly identically to the original model on most tasks.65% similarUnverifiedClaude Opus 5.5 performance matches Claude 5.1 on most tasks, input and output pricing have both been reduced, and usage limits for Pro Max and Team users have been increased.63% similarUnverifiedIn testing, Opus defaults to high effort in Claude Code, while Astra defaults to medium effort in Codex.63% similarUnverifiedAnthropic officially recommends setting the default effort value for Opus 5.5 to medium, as medium hit the sweet spot between performance and speed in official testing.62% similar
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