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Mistral: Mistral Small 4 vs MoonshotAI: Kimi K2.5

Last updated at: 2026-05-01

Metric Mistral Small 4 Mistral Small 4 none Release: 2026-03-16 Kimi K2.5 Kimi K2.5 none Release: 2026-01-27
Score 5.2 5.5
Rank #115 #102
Reliability N/A N/A
Consistency 9.5 8.7
Tests Correct
Attempt pass rate 31.5% 40.7%
Flaky tests 1 3
Total Runs 54 54
Cost per result 0.118 0.271
Total Cost $0.006 $0.017
Input Price $0.150 / 1M $0.440 / 1M
Output Price $0.600 / 1M $2.000 / 1M
Output Tokens 2,207 2,659
Reasoning Tokens 0 0
Response Time (avg) 665ms 13.37s
Response Time (max) 1.72s 42.13s
Response Time (total) 11.97s 147.05s

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Score vs Total Cost

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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
Mistral Small 4 3.4 7.9 16.7% 1 395ms 182 0
Kimi K2.5 3.6 8.4 8.3% 1 6.24s 373 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 4.5 9.0 0.0% 0 1.28s 583 0
Kimi K2.5 10.0 10.0 100.0% 0 38.78s 649 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 3.0 10.0 0.0% 0 1.72s 496 0
Kimi K2.5 2.8 2.1 33.3% 1 19.16s 748 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 10.0 10.0 100.0% 0 822ms 261 0
Kimi K2.5 7.3 5.8 83.3% 1 42.13s 187 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 5.3 10.0 33.3% 0 367ms 28 0
Kimi K2.5 5.3 10.0 33.3% 0 4.38s 29 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 4.0 10.0 0.0% 0 729ms 205 0
Kimi K2.5 10.0 10.0 100.0% 0 4.00s 76 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 6.5 10.0 50.0% 0 380ms 69 0
Kimi K2.5 6.5 10.0 50.0% 0 2.67s 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 3.1 9.9 0.0% 0 589ms 170 0
Kimi K2.5 3.1 10.0 0.0% 0 4.73s 317 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 10.0 10.0 100.0% 0 1.40s 213 0
Kimi K2.5 10.0 10.0 100.0% 0 13.99s 220 0

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