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AI BENCHY Compare

Mistral: Mistral Small 4 vs xAI: Grok 4.20

Summary

Mistral Small 4 vs Grok 4.20 benchmark comparison: Mistral Small 4 leads on average score with 5.1 vs 4.4. Mistral Small 4 has the lower benchmark cost at $0.007 vs $0.057. Mistral Small 4 is faster at 630ms vs 1.11s, with pass rates of 27.0% vs 28.6%.

Recommended model: Mistral Small 4 - It has the best score here (5.1), while costing about 8.2x less than Grok 4.20.

Last updated at: 2026-07-02

Metric Mistral Small 4 Mistral Small 4 none Release: 2026-03-16 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 5.1 4.4
Rank #134 #160
Reliability 10.0 N/A
Consistency 9.5 8.5
Tests Correct
Attempt pass rate 27.0% 28.6%
Flaky tests 1 0
Total Runs 63 54
Cost per result 0.139 1.570
Total Cost $0.007 $0.057
Input Price $0.150 / 1M $1.250 / 1M
Output Price $0.600 / 1M $2.500 / 1M
Total Input Tokens 37,309 41,313
Output Tokens 2,201 1,923
Reasoning Tokens 0 0
Response Time (avg) 630ms 1.11s
Response Time (max) 1.72s 6.04s
Response Time (total) 13.22s 19.96s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#134 Mistral Small 4

none
Cost
$0.002
Time
10.4s
Tokens
2,370 tok

#160 xAI: Grok 4.20

none
Cost
$0.004
Time
6.5s
Tokens
1,367 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

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) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 3.4 7.9 16.7% 1 395ms 708 182 0
Grok 4.20 4.8 10.0 25.0% 0 501ms 1,986 267 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 3.7 9.7 0.0% 0 901ms 7,636 619 0
Grok 4.20 1.1 3.1 0.0% 0 1.22s 1,074 312 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 3.0 10.0 0.0% 0 1.72s 11,640 496 0
Grok 4.20 3.0 10.0 0.0% 0 6.04s 17,673 282 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 10.0 10.0 100.0% 0 822ms 7,914 261 0
Grok 4.20 10.0 10.0 100.0% 0 522ms 7,749 207 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 5.3 10.0 33.3% 0 367ms 798 28 0
Grok 4.20 3.0 10.0 0.0% 0 687ms 1,746 325 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 4.0 10.0 0.0% 0 729ms 519 205 0
Grok 4.20 4.8 10.0 0.0% 0 659ms 819 83 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 6.5 10.0 50.0% 0 380ms 729 69 0
Grok 4.20 6.3 10.0 50.0% 0 445ms 1,350 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 3.1 9.9 0.0% 0 399ms 735 111 0
Grok 4.20 5.3 10.0 33.3% 0 473ms 1,671 198 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 10.0 10.0 100.0% 0 1.40s 6,420 213 0
Grok 4.20 10.0 10.0 100.0% 0 4.63s 7,245 189 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mistral Small 4 3.0 10.0 0.0% 0 397ms 210 17 0
Grok 4.20 0.0 0.0 0.0% 0 0ms 0 0 0

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