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Google: Gemma 4 31B vs OpenAI: gpt-oss-120b

Summary

Gemma 4 31B vs gpt-oss-120b benchmark comparison: gpt-oss-120b leads on average score with 6.7 vs 6.3. gpt-oss-120b has the lower benchmark cost at $0.013 vs $0.033. gpt-oss-120b is faster at 22.28s vs 56.55s, with pass rates of 69.8% vs 52.4%.

Recommended model: gpt-oss-120b - It has the best score here (6.7), while costing about 2.7x less than Gemma 4 31B.

Last updated at: 2026-06-18

Metric Gemma 4 31B Gemma 4 31B medium Release: 2026-04-02 Free Available gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available
Score 6.3 6.7
Rank #88 #78
Reliability 10.0 10.0
Consistency 9.4 8.0
Tests Correct
Attempt pass rate 69.8% 52.4%
Flaky tests 1 5
Total Runs 63 63
Cost per result 0.257 0.141
Total Cost $0.033 $0.013
Input Price $0.120 / 1M $0.039 / 1M
Output Price $0.350 / 1M $0.180 / 1M
Total Input Tokens 17,957 39,084
Output Tokens 22,356 20,013
Reasoning Tokens 65,726 50,233
Response Time (avg) 56.55s 22.28s
Response Time (max) 437.40s 68.16s
Response Time (total) 1074.41s 311.96s

Generation showcase

Hamster playing table tennis

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

#88 Gemma 4 31B

medium
Cost
$0.002
Time
45.7s
Tokens
2,696 tok

#78 gpt-oss-120b

medium
Cost
$0.001
Time
26.7s
Tokens
555 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
Gemma 4 31B 10.0 10.0 100.0% 0 12.89s 816 962 2,046
gpt-oss-120b 6.7 9.9 50.0% 0 10.21s 1,314 3,518 2,177
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 4.3 5.8 22.2% 1 219.76s 5,568 11,098 33,212
gpt-oss-120b 5.9 7.0 55.6% 1 38.37s 7,782 3,365 11,973
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 3.0 10.0 0.0% 0 0ms 0 0 0
gpt-oss-120b 10.0 10.0 100.0% 0 31.18s 11,535 694 5,072
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 10.0 10.0 100.0% 0 21.11s 8,334 1,822 2,951
gpt-oss-120b 6.4 5.9 66.7% 1 1.98s 7,476 241 1,114
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 7.7 10.0 66.7% 0 38.48s 876 4,349 8,985
gpt-oss-120b 2.9 4.4 22.2% 2 50.92s 1,266 6,784 20,606
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 10.0 10.0 100.0% 0 9.57s 567 105 888
gpt-oss-120b 4.3 10.0 0.0% 0 7.90s 659 107 387
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 10.0 10.0 100.0% 0 12.76s 777 533 2,035
gpt-oss-120b 9.9 10.0 100.0% 0 7.63s 1,036 126 1,799
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 9.9 10.0 100.0% 0 26.91s 801 1,795 5,595
gpt-oss-120b 5.3 7.2 44.4% 1 21.71s 1,190 1,790 2,264
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 3.0 10.0 0.0% 0 0ms 0 0 0
gpt-oss-120b 9.8 10.0 100.0% 0 6.91s 6,514 287 1,083
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemma 4 31B 3.0 10.0 0.0% 0 90.14s 218 1,692 10,014
gpt-oss-120b 3.0 10.0 0.0% 0 26.51s 312 3,101 3,758

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