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Google: Gemini 3 Flash Preview vs xAI: Grok 4.1 Fast

Last updated at: 2026-05-01

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17 Grok 4.1 Fast Grok 4.1 Fast none Release: 2025-11-19
Score 10.0 4.5
Rank #1 #130
Reliability N/A N/A
Consistency 10.0 8.7
Tests Correct
Attempt pass rate 100.0% 24.1%
Flaky tests 0 3
Total Runs 18 54
Cost per result 0.600 0.269
Total Cost $0.108 $0.009
Input Price $0.500 / 1M $0.200 / 1M
Output Price $3.000 / 1M $0.500 / 1M
Output Tokens 655 1,721
Reasoning Tokens 33,749 0
Response Time (avg) 12.11s 1.76s
Response Time (max) 82.37s 5.51s
Response Time (total) 217.93s 19.35s

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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
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.26s 110 1,076
Grok 4.1 Fast 3.2 10.0 0.0% 0 1.07s 235 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 82.37s 144 16,257
Grok 4.1 Fast 5.3 3.4 33.3% 1 1.79s 567 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 23.58s 117 3,495
Grok 4.1 Fast 3.0 10.0 0.0% 0 3.33s 105 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 7.62s 93 2,197
Grok 4.1 Fast 10.0 10.0 100.0% 0 943ms 180 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 14.81s 4 7,228
Grok 4.1 Fast 5.9 7.2 55.6% 1 1.06s 15 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 6.34s 24 635
Grok 4.1 Fast 4.4 9.9 0.0% 0 1.08s 112 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.30s 24 903
Grok 4.1 Fast 3.0 10.0 0.0% 0 923ms 56 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.86s 61 1,455
Grok 4.1 Fast 3.2 10.0 0.0% 0 1.28s 243 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 9.78s 78 503
Grok 4.1 Fast 2.8 1.6 33.3% 1 5.51s 208 0

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