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Anthropic: Claude Opus 4.6 vs Anthropic: Claude Sonnet 4.6

Last updated at: 2026-05-01

Metric Claude Opus 4.6 Claude Opus 4.6 medium Release: 2026-02-05 Claude Sonnet 4.6 Claude Sonnet 4.6 none Release: 2026-02-17
Score 7.6 7.4
Rank #50 #56
Reliability N/A N/A
Consistency 9.1 9.6
Tests Correct
Attempt pass rate 70.4% 64.8%
Flaky tests 2 1
Total Runs 54 54
Cost per result 12.047 2.376
Total Cost $1.446 $0.262
Input Price $5.000 / 1M $3.000 / 1M
Output Price $25.000 / 1M $15.000 / 1M
Output Tokens 29,829 7,433
Reasoning Tokens 18,938 0
Response Time (avg) 21.08s 4.98s
Response Time (max) 83.40s 23.84s
Response Time (total) 231.84s 54.83s

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Score vs Total Cost

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Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 6.4 5.8 66.7% 2 7.45s 986 1,071
Claude Sonnet 4.6 4.8 10.0 25.0% 0 2.94s 1,214 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 23.11s 3,486 1,504
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.67s 523 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 76.66s 8,178 5,194
Claude Sonnet 4.6 9.5 10.0 100.0% 0 23.84s 3,766 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 7.37s 691 757
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.43s 252 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 3.0 10.0 0.0% 0 83.40s 14,642 8,687
Claude Sonnet 4.6 7.7 10.0 66.7% 0 3.54s 413 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 5.04s 188 292
Claude Sonnet 4.6 6.1 3.1 66.7% 1 2.56s 192 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 2.43s 266 467
Claude Sonnet 4.6 6.5 10.0 50.0% 0 1.96s 90 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 7.7 10.0 66.7% 0 4.60s 531 637
Claude Sonnet 4.6 7.7 10.0 66.7% 0 2.92s 536 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 9.73s 861 329
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.11s 447 0

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