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OpenAI: GPT-5.4 Mini vs xAI: Grok 4.1 Fast

Last updated at: 2026-03-17

Metric GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17 Grok 4.1 Fast Grok 4.1 Fast medium Release: 2025-11-19
Rank #34 #36
Score 7.1 6.9
Consistency 7.2 7.5
Cost per result 3.610 0.568
Total Cost $0.289 $0.052
Tests Correct
Attempt pass rate 68.6% 66.7%
Flaky tests 6 5
Total Runs 51 51
Output Tokens 1,708 1,189
Reasoning Tokens 58,019 84,595
Response Time (avg) 15.66s 23.91s
Response Time (max) 102.91s 121.79s
Response Time (total) 266.14s 239.09s

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Score vs Total Cost

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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) Output Tokens Reasoning Tokens
GPT-5.4 Mini 8.6 7.9 91.7% 1 4.05s 296 2,876
Grok 4.1 Fast 8.7 7.9 91.7% 1 3.81s 108 4,741
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 10.0 10.0 100.0% 0 17.81s 317 4,317
Grok 4.1 Fast 10.0 10.0 100.0% 0 37.64s 261 12,272
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 10.0 10.0 100.0% 0 2.43s 234 650
Grok 4.1 Fast 10.0 10.0 100.0% 0 6.63s 180 5,409
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.1 4.4 44.5% 2 65.31s 60 43,286
Grok 4.1 Fast 5.8 4.4 66.7% 2 121.79s 11 37,657
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.5 10.0 0.0% 0 3.72s 150 510
Grok 4.1 Fast 4.2 9.9 0.0% 0 16.25s 127 3,456
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 7.4 6.5 66.7% 1 2.50s 129 1,337
Grok 4.1 Fast 6.6 10.0 50.0% 0 5.30s 55 3,489
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 6.8 7.9 55.6% 1 4.33s 271 2,449
Grok 4.1 Fast 5.3 7.2 44.4% 1 8.08s 187 6,086
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Mini 4.7 1.6 66.7% 1 9.62s 251 2,594
Grok 4.1 Fast 2.8 1.6 33.3% 1 27.71s 260 11,485

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