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Anthropic: Claude Sonnet 4.6 vs MoonshotAI: Kimi K2.6

Last updated at: 2026-04-21

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 none Release: 2026-02-17 Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20
Score 7.4 7.7
Rank #42 #34
Consistency 9.6 8.3
Tests Correct
Attempt pass rate 64.8% 74.1%
Flaky tests 1 4
Total Runs 54 54
Cost per result 2.376 6.563
Total Cost $0.262 $0.722
Input Price $3.000 / 1M $0.600 / 1M
Output Price $15.000 / 1M $2.800 / 1M
Output Tokens 7,433 80,759
Reasoning Tokens 0 179,814
Response Time (avg) 4.98s 45.20s
Response Time (max) 23.84s 215.85s
Response Time (total) 54.83s 768.37s

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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 Sonnet 4.6 4.8 10.0 25.0% 0 2.94s 1,214 0
Kimi K2.6 7.0 8.0 66.7% 1 11.59s 7,115 8,934
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.67s 523 0
Kimi K2.6 10.0 10.0 100.0% 0 106.96s 3,236 18,817
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 9.5 10.0 100.0% 0 23.84s 3,766 0
Kimi K2.6 10.0 10.0 100.0% 0 40.96s 711 13,876
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.43s 252 0
Kimi K2.6 10.0 10.0 100.0% 0 20.38s 316 11,305
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 7.7 10.0 66.7% 0 3.54s 413 0
Kimi K2.6 5.3 7.2 44.4% 1 202.38s 47,035 98,262
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.1 3.1 66.7% 1 2.56s 192 0
Kimi K2.6 10.0 10.0 100.0% 0 17.83s 3,981 4,472
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.5 10.0 50.0% 0 1.96s 90 0
Kimi K2.6 10.0 10.0 100.0% 0 12.53s 3,977 5,269
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 7.7 10.0 66.7% 0 2.92s 536 0
Kimi K2.6 5.0 5.2 44.5% 2 25.59s 14,140 17,868
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.11s 447 0
Kimi K2.6 10.0 10.0 100.0% 0 8.92s 248 1,011

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