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

Summary

GPT-5 Nano vs MiMo-V2.5-Pro benchmark comparison: GPT-5 Nano leads on average score with 6.3 vs 5.5. MiMo-V2.5-Pro has the lower benchmark cost at $0.017 vs $0.081. MiMo-V2.5-Pro is faster at 1.78s vs 42.51s, with pass rates of 57.1% vs 39.7%.

Recommended model: MiMo-V2.5-Pro - It offers the best overall trade-off: a competitive score (5.5), lower cost than GPT-5 Nano, and balanced response time.

Last updated at: 2026-06-04

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 MiMo-V2.5-Pro MiMo-V2.5-Pro none Release: 2026-04-22
Score 6.3 5.5
Rank #94 #123
Reliability 10.0 10.0
Consistency 7.3 8.6
Tests Correct
Attempt pass rate 57.1% 39.7%
Flaky tests 7 4
Total Runs 63 63
Cost per result 0.897 0.648
Total Cost $0.081 $0.017
Input Price $0.050 / 1M $0.435 / 1M
Output Price $0.400 / 1M $0.870 / 1M
Total Input Tokens 34,108 30,724
Output Tokens 5,464 3,043
Reasoning Tokens 192,064 0
Response Time (avg) 42.51s 1.78s
Response Time (max) 204.02s 8.32s
Response Time (total) 595.09s 37.42s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#94 GPT-5 Nano

medium
Cost
$0.006
Time
108.5s
Tokens
13,209 tok

#123 MiMo-V2.5-Pro

none
Cost
$0.004
Time
46.4s
Tokens
4,025 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

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) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 606 1,221 21,184
MiMo-V2.5-Pro 3.3 8.1 8.3% 1 2.67s 645 994 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 7.0 7.7 55.6% 1 41.62s 7,305 740 41,152
MiMo-V2.5-Pro 4.3 7.8 22.2% 1 1.41s 6,559 485 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 65.96s 11,019 578 17,984
MiMo-V2.5-Pro 3.0 10.0 0.0% 0 3.54s 4,695 596 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 3.7 1.7 50.0% 2 21.42s 7,140 453 10,560
MiMo-V2.5-Pro 10.0 10.0 100.0% 0 1.32s 7,758 249 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 5.2 4.4 55.6% 2 204.02s 619 237 64,448
MiMo-V2.5-Pro 5.3 10.0 33.3% 0 877ms 753 27 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 4.1 10.0 0.0% 0 17.51s 477 202 4,608
MiMo-V2.5-Pro 4.0 10.0 0.0% 0 2.58s 498 87 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 9.8 10.0 100.0% 0 15.64s 660 312 4,736
MiMo-V2.5-Pro 6.4 10.0 50.0% 0 1.03s 684 66 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 5.3 7.2 44.4% 1 20.63s 642 929 14,272
MiMo-V2.5-Pro 6.7 4.7 77.8% 2 1.30s 678 267 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 33.30s 5,445 558 6,976
MiMo-V2.5-Pro 10.0 10.0 100.0% 0 3.30s 8,238 258 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5 Nano 3.0 10.0 0.0% 0 20.13s 195 234 6,144
MiMo-V2.5-Pro 3.0 10.0 0.0% 0 1.89s 216 14 0

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