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

Summary

Gemini 3 Flash Preview vs GPT-5.5 benchmark comparison: GPT-5.5 leads on average score with 8.8 vs 8.4. Gemini 3 Flash Preview has the lower benchmark cost at $0.111 vs $3.679. Gemini 3 Flash Preview is faster at 5.76s vs 37.98s, with pass rates of 79.4% vs 87.3%.

Recommended model: Gemini 3 Flash Preview - Its score stays close to the best score here (8.4 vs 8.8), while costing about 33.4x less than GPT-5.5.

Last updated at: 2026-06-04

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 8.4 8.8
Rank #16 #9
Reliability 10.0 10.0
Consistency 9.2 8.9
Tests Correct
Attempt pass rate 79.4% 87.3%
Flaky tests 2 3
Total Runs 63 63
Cost per result 0.689 21.638
Total Cost $0.111 $3.679
Input Price $0.500 / 1M $5.000 / 1M
Output Price $3.000 / 1M $30.000 / 1M
Total Input Tokens 36,769 34,212
Output Tokens 2,076 1,985
Reasoning Tokens 28,518 114,925
Response Time (avg) 5.76s 37.98s
Response Time (max) 14.72s 332.10s
Response Time (total) 120.93s 797.60s

Generation showcase

Hamster playing table tennis

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

#16 Gemini 3 Flash Preview

low
Cost
$0.007
Time
12.1s
Tokens
2,289 tok

#9 GPT-5.5

medium
Cost
$0.112
Time
71.9s
Tokens
3,807 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 10.0 10.0 100.0% 0 3.48s 500 281 3,082
GPT-5.5 10.0 10.0 100.0% 0 4.66s 606 250 1,335
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 5.8 7.2 44.4% 1 6.00s 8,122 456 7,421
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959
Combined 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 3.27s 12,860 326 0
GPT-5.5 10.0 10.0 100.0% 0 19.29s 11,019 312 2,841
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 9.40s 7,261 279 3,656
GPT-5.5 10.0 10.0 100.0% 0 4.18s 7,140 234 593
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 5.3 7.2 44.4% 1 8.05s 645 12 6,410
GPT-5.5 5.3 7.2 44.4% 1 164.14s 723 67 79,625
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 3.68s 492 120 981
GPT-5.5 10.0 10.0 100.0% 0 4.16s 477 138 223
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 9.9 10.0 100.0% 0 7.02s 621 71 2,752
GPT-5.5 10.0 10.0 100.0% 0 3.36s 660 93 538
Puzzle Solving 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 5.77s 562 288 3,168
GPT-5.5 10.0 10.0 100.0% 0 6.76s 642 241 2,225
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 4.99s 5,550 234 415
GPT-5.5 10.0 10.0 100.0% 0 10.57s 5,445 258 832
Trivia 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 2.75s 156 9 633
GPT-5.5 2.8 1.6 33.3% 1 37.86s 195 30 1,754

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