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Mistral: Mistral Small 4 vs xAI: Grok 4.20

Last updated at: 2026-04-02

Metric Mistral Small 4 Mistral Small 4 medium Release: 2026-03-16 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 5.6 5.4
Rank #66 #69
Consistency 7.0 9.5
Tests Correct
Attempt pass rate 49.0% 31.4%
Flaky tests 6 1
Total Runs 51 51
Cost per result 0.502 1.809
Total Cost $0.026 $0.091
Input Price $0.150 / 1M $2.000 / 1M
Output Price $0.600 / 1M $6.000 / 1M
Output Tokens 12,288 1,655
Reasoning Tokens 28,112 0
Response Time (avg) 4.18s 1.11s
Response Time (max) 25.25s 6.04s
Response Time (total) 71.03s 18.80s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 5.6 3.8 66.7% 3 2.67s 4,055 4,778
Grok 4.20 4.8 10.0 25.0% 0 501ms 267 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 25.25s 2,612 10,700
Grok 4.20 3.0 10.0 0.0% 0 6.04s 282 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 7.3 5.9 83.3% 1 1.23s 335 723
Grok 4.20 10.0 10.0 100.0% 0 522ms 207 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 5.3 7.2 44.4% 1 6.11s 2,621 6,904
Grok 4.20 3.0 10.0 0.0% 0 687ms 325 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 4.8 10.0 0.0% 0 2.05s 821 828
Grok 4.20 4.8 10.0 0.0% 0 659ms 83 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 7.3 5.8 83.3% 1 1.38s 540 1,031
Grok 4.20 4.8 10.0 0.0% 0 455ms 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Mistral Small 4 3.4 9.7 0.0% 0 2.00s 983 2,338
Grok 4.20 5.3 7.4 44.4% 1 487ms 242 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 3.50s 321 810
Grok 4.20 10.0 10.0 100.0% 0 4.63s 189 0

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