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OpenAI: GPT-5.4 Nano vs Xiaomi: MiMo-V2.5

Last updated at: 2026-05-01

Metric GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17 MiMo-V2.5 MiMo-V2.5 medium Release: 2026-04-22
Score 7.6 7.8
Rank #51 #47
Reliability N/A N/A
Consistency 9.0 8.6
Tests Correct
Attempt pass rate 68.5% 74.1%
Flaky tests 2 3
Total Runs 54 54
Cost per result 0.747 2.102
Total Cost $0.083 $0.253
Input Price $0.200 / 1M $0.400 / 1M
Output Price $1.250 / 1M $2.000 / 1M
Output Tokens 2,946 2,840
Reasoning Tokens 58,132 116,242
Response Time (avg) 11.21s 13.71s
Response Time (max) 94.06s 86.93s
Response Time (total) 201.80s 246.73s

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Score vs Total Cost

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Score vs Response Time (avg)

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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
GPT-5.4 Nano 8.3 10.0 75.0% 0 4.52s 683 2,254
MiMo-V2.5 10.0 10.0 100.0% 0 1.98s 303 2,022
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 10.0 10.0 100.0% 0 13.41s 472 3,616
MiMo-V2.5 10.0 10.0 100.0% 0 31.48s 488 14,813
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 9.8 10.0 100.0% 0 24.13s 349 5,719
MiMo-V2.5 10.0 10.0 100.0% 0 16.86s 363 7,609
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 10.0 10.0 100.0% 0 2.54s 234 516
MiMo-V2.5 2.7 5.7 16.7% 1 6.33s 306 5,714
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 5.9 7.2 55.6% 1 38.18s 60 43,325
MiMo-V2.5 5.3 10.0 33.3% 0 34.53s 507 49,478
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 4.5 10.0 0.0% 0 4.15s 179 443
MiMo-V2.5 3.8 2.5 33.3% 1 1.55s 118 170
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 9.8 10.0 100.0% 0 1.88s 95 521
MiMo-V2.5 9.9 10.0 100.0% 0 1.80s 88 801
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 4.0 7.1 22.2% 1 3.65s 640 1,356
MiMo-V2.5 8.2 7.2 88.9% 1 20.60s 364 33,211
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.4 Nano 10.0 10.0 100.0% 0 7.71s 234 382
MiMo-V2.5 10.0 10.0 100.0% 0 7.29s 303 2,424

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