Claude vs ChatGPT: head to head on 20 AI benchmarks
Higher published score on each leaderboard, best-ranked model from each side
chatjudge.ai
Claude higher
16
vs
ChatGPT higher
4
Claude (Anthropic)
ChatGPT (OpenAI)
Bars from zero on a 0–100% scale
Vals Index
Accuracy · dated 22 Oct 2026
Claude
70.85%
ChatGPT
65.02%
Legal Benchmarks: Contract Workflows
Task pass rate · dated Oct 2026
Claude
48.4%
ChatGPT
25.8%
Legal Benchmarks: Data Extraction
Task pass rate · dated Oct 2026
Claude
76.7%
ChatGPT
56.7%
LegalBench
Accuracy · dated 13 Oct 2026
Claude
88.56%
ChatGPT
86.97%
Legal Research Bench
All-Pass · dated 22 Oct 2026
Claude
55.29%
ChatGPT
48.08%
HealthBench (independent run)
HealthBench · checked 23 Oct 2026
Claude
62.1%
ChatGPT
58.5%
MedCode
Accuracy · dated 13 Oct 2026
Claude
63.57%
ChatGPT
52.73%
Finance Agent
Accuracy · dated 22 Oct 2026
Claude
67.85%
ChatGPT
61.82%