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Google: Gemini 3 Flash Preview vs OpenAI: gpt-oss-120b

Summary

Gemini 3 Flash Preview vs gpt-oss-120b benchmark comparison: Gemini 3 Flash Preview leads on average score with 6.9 vs 6.7. gpt-oss-120b has the lower benchmark cost at $0.013 vs $0.025. Gemini 3 Flash Preview is faster at 1.65s vs 22.28s, with pass rates of 66.7% vs 52.4%.

Recommended model: Gemini 3 Flash Preview - It has the best score here (6.9), while responding about 13.5x faster than gpt-oss-120b.

Last updated at: 2026-06-12

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview none Release: 2025-12-17 gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available
Score 6.9 6.7
Rank #68 #78
Reliability 10.0 10.0
Consistency 9.2 8.0
Tests Correct
Attempt pass rate 66.7% 52.4%
Flaky tests 2 5
Total Runs 63 63
Cost per result 0.186 0.141
Total Cost $0.025 $0.013
Input Price $0.500 / 1M $0.039 / 1M
Output Price $3.000 / 1M $0.180 / 1M
Total Input Tokens 37,011 39,084
Output Tokens 1,885 20,013
Reasoning Tokens 0 50,233
Response Time (avg) 1.65s 22.28s
Response Time (max) 3.56s 68.16s
Response Time (total) 23.07s 311.96s

Generation showcase

Hamster playing table tennis

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

#68 Gemini 3 Flash Preview

none
Cost
$0.003
Time
5.6s
Tokens
981 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
Gemini 3 Flash Preview 8.3 10.0 75.0% 0 1.25s 498 214 0
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
Gemini 3 Flash Preview 5.5 10.0 33.3% 0 1.80s 8,122 453 0
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
Gemini 3 Flash Preview 4.7 1.6 66.7% 1 3.56s 12,862 350 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
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 1.41s 7,263 279 0
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
Gemini 3 Flash Preview 7.7 10.0 66.7% 0 963ms 643 18 0
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
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 1.13s 490 104 0
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
Gemini 3 Flash Preview 6.4 5.8 66.7% 1 1.58s 619 74 0
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
Gemini 3 Flash Preview 7.7 10.0 66.7% 0 1.05s 574 144 0
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
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.35s 5,784 234 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
Gemini 3 Flash Preview 3.0 10.0 0.0% 0 1.07s 156 15 0
gpt-oss-120b 3.0 10.0 0.0% 0 26.51s 312 3,101 3,758

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