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Anthropic: Claude Sonnet 4.6 vs MoonshotAI: Kimi K2.5

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Last updated at : 2026-02-27 15:16

Summary

Metric Anthropic: Claude Sonnet 4.6 none Release: Unknown release date MoonshotAI: Kimi K2.5 medium Release: Unknown release date
Rank #14 #17
Score 6.36 6.29
Consistency 9.50 7.69
Cost per result 1.325 2.335
Total Cost $0.106 $0.187
Tests Correct
Wrong Tests 6 6
Attempt pass rate 59.5% 73.8%
Flaky tests 1 4
Output Tokens 2,637 30,504
Reasoning Tokens 0 58,467

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 4.00 10.00 33.3% 0 1,199 0
MoonshotAI: Kimi K2.5 7.00 7.21 88.9% 1 335 6,255
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 10.00 10.00 100.0% 0 252 0
MoonshotAI: Kimi K2.5 10.00 10.00 100.0% 0 1,181 6,049
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 7.00 10.00 66.7% 0 54 0
MoonshotAI: Kimi K2.5 1.00 4.41 33.3% 2 20,696 30,894
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 5.50 10.00 50.0% 0 90 0
MoonshotAI: Kimi K2.5 9.50 10.00 100.0% 0 3,777 4,967
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 5.00 7.68 44.4% 1 595 0
MoonshotAI: Kimi K2.5 5.00 7.61 55.6% 1 4,273 9,490
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Anthropic: Claude Sonnet 4.6 10.00 10.00 100.0% 0 447 0
MoonshotAI: Kimi K2.5 10.00 10.00 100.0% 0 242 812

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