Unverified50% confidenceBenchmarkExact time
On DeepSuite, GPT-6.1 Sol leads Sonnet 5.5 by approximately 4.2 points, while Sonnet wins on AutomationBench by a margin of 8.7 points.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/30/2026
First Seen
Valid until: 12/29/2026
Sources
Related Entities
Related Claims
VerifiedOn the SWE Bench Pro programming benchmark, Sonnet 5 achieved 63.2% and Opus 4.8 achieved 69.2%.77% similarPartially VerifiedThe company states that Sonnet 5 shows significant improvements over Sonnet 4.6 in reasoning, tool use, coding, and knowledge work, with overall performance approaching OPUS 4.8 but at a lower price.76% similarUnverifiedOn the SWE-Bench Pro benchmark, Sonnet 5 significantly trails Opus 4.8.75% similarUnverifiedOn Cursor Bench, Sonnet 5.5's best score is only about two points behind Opus 5.572% similarUnverifiedIn agentic search tests, Sonnet 5 outperformed Sonnet 4.6 across all effort levels, but its overall performance was below Opus 4.8, placing it at approximately the Opus 4.7 level overall.72% similar
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