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xAI: Grok 4.20 Beta vs Xiaomi: MiMo-V2-Flash

Last updated at: 2026-03-12

Metric Grok 4.20 Beta Grok 4.20 Beta medium Release: 2026-03-12 MiMo-V2-Flash MiMo-V2-Flash medium Release: 2025-12-16
Rank #24 #22
Avg Score 7.0 7.2
Consistency 9.0 9.5
Cost per result 5.989 0.316
Total Cost $0.599 $0.035
Tests Correct
Attempt pass rate 70.8% 72.9%
Flaky tests 2 1
Total Runs 48 48
Output Tokens 1,481 11,613
Reasoning Tokens 86,628 106,714
Response Time (avg) 8.89s 25.33s
Response Time (max) 24.21s 96.01s
Response Time (total) 142.18s 253.33s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 7.0 7.2 88.9% 1 3.19s 262 6,289
MiMo-V2-Flash 9.7 10.0 100.0% 0 16.79s 1,328 18,739
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 10.0 10.0 100.0% 0 20.93s 227 12,212
MiMo-V2-Flash 9.0 10.0 100.0% 0 75.68s 442 26,859
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 9.9 10.0 100.0% 0 4.01s 180 5,281
MiMo-V2-Flash 5.5 10.0 50.0% 0 0ms 153 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 4.0 10.0 33.3% 0 21.33s 251 40,255
MiMo-V2-Flash 4.0 7.2 55.6% 1 96.01s 8,374 42,461
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 10.0 10.0 100.0% 0 5.78s 72 3,440
MiMo-V2-Flash 3.0 10.0 0.0% 0 4.20s 87 488
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 9.0 10.0 50.0% 0 4.97s 57 7,107
MiMo-V2-Flash 10.0 10.0 100.0% 0 4.28s 75 3,504
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 7.0 7.2 88.9% 1 3.85s 249 6,660
MiMo-V2-Flash 7.0 10.0 66.7% 0 3.77s 833 1,948
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 10.0 10.0 0.0% 0 12.39s 183 5,384
MiMo-V2-Flash 10.0 10.0 100.0% 0 27.78s 321 12,715

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