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Google: Gemini 3.5 Flash vs OpenAI: gpt-oss-120b

Summary

Gemini 3.5 Flash (high) vs gpt-oss-120b benchmark comparison: Gemini 3.5 Flash (high) leads on average score with 9.8 vs 4.0. gpt-oss-120b has the lower benchmark cost at $0.010 vs $1.115. Gemini 3.5 Flash (high) is faster at 8.84s vs 21.61s, with pass rates of 96.8% vs 34.9%.

Recommended model: Gemini 3.5 Flash (high) - It has the best score here (9.8), while responding about 2.4x faster than gpt-oss-120b.

Last updated at: 2026-07-09

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 gpt-oss-120b gpt-oss-120b none Release: 2025-08-05 Free Available
Score 9.8 4.0
Rank #1 #183
Reliability 10.0 10.0
Consistency 9.6 8.2
Tests Correct
Attempt pass rate 96.8% 34.9%
Flaky tests 1 2
Total Runs 63 57
Cost per result 5.575 0.168
Total Cost $1.115 $0.010
Input Price $1.500 / 1M $0.036 / 1M
Output Price $9.000 / 1M $0.180 / 1M
Total Input Tokens 37,594 9,081
Output Tokens 1,975 51,664
Reasoning Tokens 115,638 0
Response Time (avg) 8.84s 21.61s
Response Time (max) 34.82s 113.71s
Response Time (total) 185.57s 345.79s

Generation showcase

Hamster playing table tennis

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

#1 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

#183 gpt-oss-120b

none
No showcase result has been generated for this model yet.
Cost
$0.000
Time
-
Tokens
0 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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.57s 492 174 4,997
gpt-oss-120b 6.5 10.0 50.0% 0 32.84s 1,336 8,676 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
gpt-oss-120b 1.5 4.0 22.2% 1 9.57s 901 3,232 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.37s 12,873 351 16,323
gpt-oss-120b 3.0 10.0 0.0% 0 0ms 0 0 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.43s 7,548 279 8,466
gpt-oss-120b 6.5 10.0 50.0% 0 7.12s 2,421 598 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.6 7.2 77.8% 1 14.09s 633 12 24,721
gpt-oss-120b 3.0 10.0 0.0% 0 34.98s 1,294 29,483 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.63s 486 115 1,650
gpt-oss-120b 4.8 10.0 0.0% 0 10.79s 584 615 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.35s 615 70 3,799
gpt-oss-120b 9.8 10.0 100.0% 0 5.06s 1,043 1,940 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.23s 558 241 4,940
gpt-oss-120b 6.0 7.2 55.6% 1 8.21s 1,188 3,982 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.8 10.0 100.0% 0 4.96s 6,115 265 1,608
gpt-oss-120b 3.0 10.0 0.0% 0 0ms 0 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.94s 156 12 2,005
gpt-oss-120b 3.0 10.0 0.0% 0 47.29s 314 3,138 0

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