Expired50% confidenceTradeoffExact time
When Max Effort mode is enabled, Sonnet 5's token consumption speed nearly matches that of Opus, losing its original speed and cost advantages.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/23/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/21/2026(expired)
Sources
Related Claims
UnverifiedSonnet 5's Max Effort mode produces approximately 40% more output tokens per Intelligence Index task compared to Sonnet 4.6.76% similarUnverifiedSonnet 5's token consumption in maximum-effort mode is comparable to OPUS, but with worse results74% similarUnverifiedTesters recommended continuing to use Opus 4.8 for the vast majority of tasks for better results, and considered Sonnet 5 disappointing.74% similarUnverifiedOn the SWE-Bench Pro benchmark, Sonnet 5 significantly trails Opus 4.8.73% similarUnverifiedIn the agentic computer use benchmark, Opus 4.8 on the high setting and Sonnet 5 on the max setting perform comparably, but Sonnet 5 consumes more tokens73% similar
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