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OpenAI: GPT-5.4 vs xAI: Grok 4.1 Fast

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Last updated at: 2026-03-06

Metric OpenAI: GPT-5.4 none Release: 2026-03-05 xAI: Grok 4.1 Fast medium Release: 2025-11-19
Avg Score 4.6 6.4
Rank #44 #28
Tests Correct
Consistency 8.9 7.8
Cost per result 1.496 0.541
Total Cost $0.090 $0.049
Attempt pass rate 44.4% 71.1%
Flaky tests 2 4
common.totalRuns 45 (15 x 3) 45 (15 x 3)
Output Tokens 1,635 1,056
Reasoning Tokens 0 80,419
Response Time (avg) 1.46s 27.61s
Response Time (max) 2.89s 121.79s
Response Time (total) 21.86s 220.87s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
OpenAI: GPT-5.4 10.0 7.3 11.1% 1 1.41s 388 0
xAI: Grok 4.1 Fast 10.0 10.0 100.0% 0 5.65s 102 4,021
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
OpenAI: GPT-5.4 10.0 10.0 0.0% 0 2.89s 291 0
xAI: 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
OpenAI: GPT-5.4 9.9 10.0 100.0% 0 1.04s 222 0
xAI: Grok 4.1 Fast 9.9 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
OpenAI: GPT-5.4 4.0 7.2 44.4% 1 1.07s 50 0
xAI: Grok 4.1 Fast 4.0 4.4 66.7% 2 121.79s 11 37,657
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
OpenAI: GPT-5.4 5.5 10.0 50.0% 0 1.07s 81 0
xAI: Grok 4.1 Fast 5.5 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
OpenAI: GPT-5.4 4.0 9.8 33.3% 0 1.52s 357 0
xAI: Grok 4.1 Fast 4.0 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
OpenAI: GPT-5.4 10.0 10.0 100.0% 0 2.75s 246 0
xAI: Grok 4.1 Fast 10.0 1.6 33.3% 1 27.71s 260 11,485

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