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Google: Gemini 3 Flash Preview vs OpenAI: GPT-5.5

Last updated at: 2026-05-10

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview low Release: 2025-12-17 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 8.8 8.9
Rank #7 #4
Reliability 10.0 10.0
Consistency 9.6 9.1
Tests Correct
Attempt pass rate 86.0% 87.7%
Flaky tests 1 2
Total Runs 57 57
Cost per result 0.579 18.365
Total Cost $0.093 $2.939
Input Price $0.500 / 1M $5.000 / 1M
Output Price $3.000 / 1M $30.000 / 1M
Output Tokens 2,027 1,950
Reasoning Tokens 23,906 91,386
Response Time (avg) 5.84s 33.02s
Response Time (max) 14.72s 332.10s
Response Time (total) 110.87s 627.45s

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 3 Flash Preview 10.0 10.0 100.0% 0 3.48s 281 3,082
GPT-5.5 10.0 10.0 100.0% 0 4.66s 250 1,335
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 6.94s 426 2,717
GPT-5.5 10.0 10.0 100.0% 0 9.09s 318 1,391
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 3.0 10.0 0.0% 0 3.27s 326 0
GPT-5.5 10.0 10.0 100.0% 0 19.29s 312 2,841
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 9.40s 279 3,656
GPT-5.5 10.0 10.0 100.0% 0 4.18s 234 593
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 5.3 7.2 44.4% 1 8.05s 12 6,410
GPT-5.5 5.3 7.2 44.4% 1 164.14s 67 79,625
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.68s 120 981
GPT-5.5 10.0 10.0 100.0% 0 4.16s 138 223
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 9.9 10.0 100.0% 0 7.02s 71 2,752
GPT-5.5 10.0 10.0 100.0% 0 3.36s 93 538
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 6.11s 269 3,260
GPT-5.5 10.0 10.0 100.0% 0 6.78s 250 2,254
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.99s 234 415
GPT-5.5 10.0 10.0 100.0% 0 10.57s 258 832
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 2.75s 9 633
GPT-5.5 2.8 1.6 33.3% 1 37.86s 30 1,754

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