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OpenAI: gpt-oss-120b vs Xiaomi: MiMo-V2.5-Pro

Summary

gpt-oss-120b vs MiMo-V2.5-Pro benchmark comparison: gpt-oss-120b leads on average score with 6.1 vs 5.5. gpt-oss-120b has the lower benchmark cost at $0.013 vs $0.017. MiMo-V2.5-Pro is faster at 1.78s vs 22.28s, with pass rates of 52.4% vs 39.7%.

Recommended model: MiMo-V2.5-Pro - Its score stays close to the best score here (5.5 vs 6.1), while responding about 12.5x faster than gpt-oss-120b.

Last updated at: 2026-06-04

Metric gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available MiMo-V2.5-Pro MiMo-V2.5-Pro none Release: 2026-04-22
Score 6.1 5.5
Rank #99 #123
Reliability 10.0 10.0
Consistency 8.0 8.6
Tests Correct
Attempt pass rate 52.4% 39.7%
Flaky tests 5 4
Total Runs 63 63
Cost per result 0.141 0.648
Total Cost $0.013 $0.017
Input Price $0.039 / 1M $0.435 / 1M
Output Price $0.180 / 1M $0.870 / 1M
Total Input Tokens 39,084 30,724
Output Tokens 20,013 3,043
Reasoning Tokens 50,233 0
Response Time (avg) 22.28s 1.78s
Response Time (max) 68.16s 8.32s
Response Time (total) 311.96s 37.42s

Generation showcase

Hamster playing table tennis

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

#99 gpt-oss-120b

medium
Cost
$0.001
Time
26.7s
Tokens
555 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-oss-120b 6.7 9.9 50.0% 0 10.21s 1,314 3,518 2,177
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-oss-120b 5.9 7.0 55.6% 1 38.37s 7,782 3,365 11,973
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-oss-120b 10.0 10.0 100.0% 0 31.18s 11,535 694 5,072
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-oss-120b 6.4 5.9 66.7% 1 1.98s 7,476 241 1,114
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-oss-120b 2.9 4.4 22.2% 2 50.92s 1,266 6,784 20,606
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-oss-120b 4.3 10.0 0.0% 0 7.90s 659 107 387
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-oss-120b 9.9 10.0 100.0% 0 7.63s 1,036 126 1,799
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-oss-120b 5.3 7.2 44.4% 1 21.71s 1,190 1,790 2,264
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-oss-120b 9.8 10.0 100.0% 0 6.91s 6,514 287 1,083
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-oss-120b 3.0 10.0 0.0% 0 26.51s 312 3,101 3,758
MiMo-V2.5-Pro 3.0 10.0 0.0% 0 1.89s 216 14 0

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