Claude Opus 4.1 (20250805)
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AI modelsClaude Opus 4.1 (20250805)
Model evaluation
Capability & preference
Human preference · Arena
Overall text preferences from head-to-head votes. Not factual accuracy or a task-success rate.
Recorded results
Only the same benchmark, version, workload, scenario and unit share a row. Missing results are not zero. System results include the full submitted hardware and software configuration.
Arena text preference / chinesehuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,426.93 rating
Confidence interval: 1,418.87 – 1,435.00
5945 votes
- Category
- chinese
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / codinghuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,472.49 rating
Confidence interval: 1,467.15 – 1,477.84
15681 votes
- Category
- coding
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / creative_writinghuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,410.64 rating
Confidence interval: 1,404.42 – 1,416.86
10858 votes
- Category
- creative_writing
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / englishhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,426.63 rating
Confidence interval: 1,422.52 – 1,430.74
32126 votes
- Category
- english
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / exclude_tieshuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,405.52 rating
Confidence interval: 1,401.46 – 1,409.58
55535 votes
- Category
- exclude_ties
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / experthuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,425.37 rating
Confidence interval: 1,416.14 – 1,434.60
4234 votes
- Category
- expert
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / frenchhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,428.03 rating
Confidence interval: 1,411.43 – 1,444.63
1417 votes
- Category
- french
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / germanhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,405.22 rating
Confidence interval: 1,389.76 – 1,420.67
1564 votes
- Category
- german
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / hard_promptshuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,442.10 rating
Confidence interval: 1,438.24 – 1,445.96
39417 votes
- Category
- hard_prompts
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,448.06 rating
Confidence interval: 1,442.82 – 1,453.29
16428 votes
- Category
- hard_prompts_english
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,405.55 rating
Confidence interval: 1,399.96 – 1,411.14
14063 votes
- Category
- industry_business_and_management_and_financial_operations
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,398.57 rating
Confidence interval: 1,393.03 – 1,404.11
14219 votes
- Category
- industry_entertainment_and_sports_and_media
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,417.47 rating
Confidence interval: 1,409.06 – 1,425.87
5333 votes
- Category
- industry_legal_and_government
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,416.77 rating
Confidence interval: 1,410.94 – 1,422.61
12261 votes
- Category
- industry_life_and_physical_and_social_science
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_mathematicalhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,426.03 rating
Confidence interval: 1,416.65 – 1,435.42
3899 votes
- Category
- industry_mathematical
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,412.88 rating
Confidence interval: 1,403.53 – 1,422.24
4427 votes
- Category
- industry_medicine_and_healthcare
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,451.49 rating
Confidence interval: 1,447.05 – 1,455.94
26032 votes
- Category
- industry_software_and_it_services
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,418.17 rating
Confidence interval: 1,413.01 – 1,423.33
17457 votes
- Category
- industry_writing_and_literature_and_language
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / instruction_followinghuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,433.67 rating
Confidence interval: 1,428.84 – 1,438.49
20774 votes
- Category
- instruction_following
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / japanesehuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,374.48 rating
Confidence interval: 1,356.73 – 1,392.24
1198 votes
- Category
- japanese
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / koreanhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,364.50 rating
Confidence interval: 1,348.93 – 1,380.07
1612 votes
- Category
- korean
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / longer_queryhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,444.34 rating
Confidence interval: 1,439.30 – 1,449.39
18467 votes
- Category
- longer_query
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / mathhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,421.75 rating
Confidence interval: 1,413.26 – 1,430.23
4802 votes
- Category
- math
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / multi_turnhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,443.22 rating
Confidence interval: 1,437.43 – 1,449.01
13107 votes
- Category
- multi_turn
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / non_englishhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,405.42 rating
Confidence interval: 1,401.74 – 1,409.10
45008 votes
- Category
- non_english
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / overallhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,418.66 rating
Confidence interval: 1,415.69 – 1,421.64
77172 votes
- Category
- overall
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / polishhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,412.93 rating
Confidence interval: 1,402.70 – 1,423.17
3730 votes
- Category
- polish
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / russianhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,421.50 rating
Confidence interval: 1,414.37 – 1,428.63
7228 votes
- Category
- russian
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
Arena text preference / spanishhuman preference · 2026-11-06 · rating
Claude Opus 4.1 (20250805)
1,448.53 rating
Confidence interval: 1,435.24 – 1,461.83
2300 votes
- Category
- spanish
- Evaluated configuration
- Claude Opus 4.1 (20250805)
- Evaluation type
- human preference
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Capabilities
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