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Google: Gemini 2.5 Flash vs OpenAI: gpt-oss-120b

Last updated at: 2026-06-01

Metric Gemini 2.5 Flash Gemini 2.5 Flash none Release: 2025-06-17 gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available
Score 6.4 5.9
Rank #95 #103
Reliability 10.0 10.0
Consistency 9.6 7.9
Tests Correct
Attempt pass rate 48.3% 50.0%
Flaky tests 1 5
Total Runs 60 60
Cost per result 0.159 0.151
Total Cost $0.015 $0.012
Input Price $0.300 / 1M $0.000 / 1M
Output Price $2.500 / 1M $0.000 / 1M
Output Tokens 1,764 17,495
Reasoning Tokens 0 46,878
Response Time (avg) 889ms 22.41s
Response Time (max) 4.39s 68.16s
Response Time (total) 17.79s 291.35s

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) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 3.0 10.0 0.0% 0 582ms 102 0
gpt-oss-120b 6.7 9.9 50.0% 0 10.21s 3,518 2,177
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 6.8 10.0 50.0% 0 810ms 477 0
gpt-oss-120b 3.9 5.6 33.3% 1 47.24s 847 8,618
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 3.0 10.0 0.0% 0 4.39s 366 0
gpt-oss-120b 10.0 10.0 100.0% 0 31.18s 694 5,072
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 652ms 279 0
gpt-oss-120b 6.4 5.9 66.7% 1 1.98s 241 1,114
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.9 7.2 55.6% 1 495ms 12 0
gpt-oss-120b 2.9 4.4 22.2% 2 50.92s 6,784 20,606
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 5.0 10.0 0.0% 0 615ms 78 0
gpt-oss-120b 4.3 10.0 0.0% 0 7.90s 107 387
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 590ms 72 0
gpt-oss-120b 9.9 10.0 100.0% 0 7.63s 126 1,799
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 7.7 10.0 66.7% 0 604ms 132 0
gpt-oss-120b 5.3 7.2 44.4% 1 21.71s 1,790 2,264
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 10.0 10.0 100.0% 0 1.91s 234 0
gpt-oss-120b 9.8 10.0 100.0% 0 6.91s 287 1,083
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 2.5 Flash 3.0 10.0 0.0% 0 1.15s 12 0
gpt-oss-120b 3.0 10.0 0.0% 0 26.51s 3,101 3,758

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