A curated, human-verified subset of SWE-bench that tests models on resolving real GitHub issues from popular open-source Python repositories like Django, Flask, and scikit-learn.
As of July 6, 2026, Claude Mythos 5 leads the SWE-bench Verified leaderboard with 95.5% , followed by Claude Fable 5 (95%) and Claude Opus 4.8 (88.6%).
Claude Mythos 5
Anthropic
Claude Fable 5
Anthropic
Claude Opus 4.8
Anthropic
According to BenchLM.ai, Claude Mythos 5 leads the SWE-bench Verified benchmark with a score of 95.5%, followed by Claude Fable 5 (95%) and Claude Opus 4.8 (88.6%). The scores show moderate spread, with meaningful differences between the top tier and mid-tier models.
57 models have been evaluated on SWE-bench Verified. The benchmark falls in the Coding category. This category carries a 20% weight in BenchLM.ai's overall scoring system. Within that category, SWE-bench Verified contributes 16% of the category score, so strong performance here directly affects a model's overall ranking.
Year
2024
Tasks
500 verified issues
Format
Code patch generation
Difficulty
Professional software engineering
SWE-bench Verified is the gold standard for evaluating AI coding agents on real-world software engineering tasks. Each task requires understanding codebases, writing patches, and passing test suites.
Version
SWE-bench Verified 2024
Refresh cadence
Annual
Staleness state
Refreshing
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
A curated, human-verified subset of SWE-bench that tests models on resolving real GitHub issues from popular open-source Python repositories like Django, Flask, and scikit-learn.
Claude Mythos 5 by Anthropic currently leads with a score of 95.5% on SWE-bench Verified.
57 AI models have been evaluated on SWE-bench Verified on BenchLM.
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