Claude Opus 4.1 (Thinking 16K, 20250805)
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AI modelsClaude Opus 4.1 (Thinking 16K, 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 · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,425.02 rating
Confidence interval: 1,415.21 – 1,434.83
3843 votes
- Category
- chinese
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / codinghuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,478.81 rating
Confidence interval: 1,472.37 – 1,485.24
9886 votes
- Category
- coding
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / creative_writinghuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,411.86 rating
Confidence interval: 1,404.19 – 1,419.53
6817 votes
- Category
- creative_writing
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / englishhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,432.75 rating
Confidence interval: 1,427.96 – 1,437.54
20830 votes
- Category
- english
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / exclude_tieshuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,407.02 rating
Confidence interval: 1,402.29 – 1,411.74
35499 votes
- Category
- exclude_ties
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / experthuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,439.16 rating
Confidence interval: 1,427.37 – 1,450.96
2524 votes
- Category
- expert
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / frenchhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,432.53 rating
Confidence interval: 1,411.47 – 1,453.60
851 votes
- Category
- french
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / germanhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,413.01 rating
Confidence interval: 1,394.27 – 1,431.75
1047 votes
- Category
- german
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / hard_promptshuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,442.32 rating
Confidence interval: 1,437.78 – 1,446.86
24857 votes
- Category
- hard_prompts
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,450.98 rating
Confidence interval: 1,444.82 – 1,457.14
10681 votes
- Category
- hard_prompts_english
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,404.85 rating
Confidence interval: 1,398.25 – 1,411.45
9076 votes
- Category
- industry_business_and_management_and_financial_operations
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,396.83 rating
Confidence interval: 1,390.21 – 1,403.45
9045 votes
- Category
- industry_entertainment_and_sports_and_media
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,420.42 rating
Confidence interval: 1,409.93 – 1,430.91
3204 votes
- Category
- industry_legal_and_government
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,421.88 rating
Confidence interval: 1,414.87 – 1,428.89
7906 votes
- Category
- industry_life_and_physical_and_social_science
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_mathematicalhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,433.63 rating
Confidence interval: 1,422.01 – 1,445.25
2457 votes
- Category
- industry_mathematical
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,414.98 rating
Confidence interval: 1,403.40 – 1,426.56
2687 votes
- Category
- industry_medicine_and_healthcare
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,456.26 rating
Confidence interval: 1,451.03 – 1,461.49
16686 votes
- Category
- industry_software_and_it_services
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,417.77 rating
Confidence interval: 1,411.57 – 1,423.98
11003 votes
- Category
- industry_writing_and_literature_and_language
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / instruction_followinghuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,435.34 rating
Confidence interval: 1,429.60 – 1,441.09
13146 votes
- Category
- instruction_following
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / japanesehuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,377.75 rating
Confidence interval: 1,355.32 – 1,400.19
674 votes
- Category
- japanese
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / koreanhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,380.84 rating
Confidence interval: 1,362.21 – 1,399.47
1100 votes
- Category
- korean
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / longer_queryhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,454.75 rating
Confidence interval: 1,448.69 – 1,460.81
11435 votes
- Category
- longer_query
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / mathhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,431.04 rating
Confidence interval: 1,420.52 – 1,441.57
3038 votes
- Category
- math
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / multi_turnhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,443.84 rating
Confidence interval: 1,436.99 – 1,450.68
8442 votes
- Category
- multi_turn
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / non_englishhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,403.72 rating
Confidence interval: 1,399.41 – 1,408.03
28500 votes
- Category
- non_english
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / overallhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,419.26 rating
Confidence interval: 1,415.80 – 1,422.72
49374 votes
- Category
- overall
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / polishhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,408.22 rating
Confidence interval: 1,395.72 – 1,420.72
2404 votes
- Category
- polish
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / russianhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,417.16 rating
Confidence interval: 1,408.16 – 1,426.16
4198 votes
- Category
- russian
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
Arena text preference / spanishhuman preference · 2026-11-09 · rating
Claude Opus 4.1 (Thinking 16K, 20250805)
1,445.82 rating
Confidence interval: 1,428.48 – 1,463.16
1290 votes
- Category
- spanish
- Evaluated configuration
- Claude Opus 4.1 (Thinking 16K, 20250805)
- Evaluation type
- human preference
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Capabilities
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