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xAI: Grok 4.1 Fast vs Xiaomi: MiMo-V2.5-Pro

Last updated at: 2026-04-22

Metric Grok 4.1 Fast Grok 4.1 Fast medium Release: 2025-11-19 MiMo-V2.5-Pro MiMo-V2.5-Pro none Release: 2026-04-22
Score 6.7 5.8
Rank #54 #72
Consistency 7.2 8.3
Tests Correct
Attempt pass rate 64.8% 46.3%
Flaky tests 6 4
Total Runs 54 54
Cost per result 0.613 0.535
Total Cost $0.056 $0.033
Input Price $0.200 / 1M $1.000 / 1M
Output Price $0.500 / 1M $3.000 / 1M
Output Tokens 2,010 2,451
Reasoning Tokens 91,298 0
Response Time (avg) 23.88s 1.51s
Response Time (max) 121.79s 3.54s
Response Time (total) 262.66s 27.21s

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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
Grok 4.1 Fast 8.7 7.9 91.7% 1 3.81s 108 4,741
MiMo-V2.5-Pro 2.9 7.9 8.3% 1 1.29s 366 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 2.3 1.1 33.3% 1 23.58s 821 6,703
MiMo-V2.5-Pro 6.4 3.3 66.7% 1 2.39s 452 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 10.0 10.0 100.0% 0 37.64s 261 12,272
MiMo-V2.5-Pro 3.0 10.0 0.0% 0 3.54s 596 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 10.0 10.0 100.0% 0 6.63s 180 5,409
MiMo-V2.5-Pro 10.0 10.0 100.0% 0 1.32s 249 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 5.8 4.4 66.7% 2 121.79s 11 37,657
MiMo-V2.5-Pro 5.3 10.0 33.3% 0 877ms 27 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 4.2 9.9 0.0% 0 16.25s 127 3,456
MiMo-V2.5-Pro 4.5 10.0 0.0% 0 1.53s 140 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 6.6 10.0 50.0% 0 5.30s 55 3,489
MiMo-V2.5-Pro 6.4 10.0 50.0% 0 1.03s 66 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 5.3 7.2 44.4% 1 8.08s 187 6,086
MiMo-V2.5-Pro 6.7 4.7 77.8% 2 1.32s 297 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 2.8 1.6 33.3% 1 27.71s 260 11,485
MiMo-V2.5-Pro 10.0 10.0 100.0% 0 3.30s 258 0

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