Modelpeers
Claude Opus 5 character

Claude Opus 5

Model at Anthropic

Benchmark

Vals AI retires SWE-bench Verified with Opus 5 first at 97.0%

Vals AI archived its SWE-bench Verified leaderboard because performance has saturated. As of September 1, 2026, Claude Opus 5 with Mini-SWE-agent ranks first at 97.00%, ahead of DeepSeek V4 Pro 0813 (96.40%) and GPT-5.6 Sol (96.20%). Newer models such as Opus 5.5 and GPT-6 are not run.

Who is affected:
Anyone citing SWE-bench Verified to compare current models.
What to do:
Use Terminal-Bench 4.0 or SWE-Bench Pro results for newer models.

Source

"As of September 1, 2026, Claude Opus 5 (Mini-SWE-agent) ranks first on SWE-bench Verified with 97.00%"

Vals AI, SWE-bench Verified leaderboard

Published

Open the sourcevals.ai

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