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Google: Gemini 3.5 Flash vs OpenAI: GPT-5.6 Sol

Summary

GPT-5.6 Sol (medium) leads on average score with 9.4 vs 9.1. Gemini 3.5 Flash (medium) has the lower benchmark cost at $0.642 vs $1.316. Gemini 3.5 Flash (medium) is faster at 8.20s vs 11.35s, with pass rates of 87.9% vs 90.9%.

Recommended modelGemini 3.5 Flash (medium)Its score stays close to the best score here (9.1 vs 9.4), while costing about 2.1x less than GPT-5.6 Sol (medium).

Last updated at: 2026-07-17

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 GPT-5.6 Sol GPT-5.6 Sol medium Release: 2026-07-09
Score 9.1 9.4
Rank #9 #4
Reliability 10.0 10.0
Consistency 9.7 8.9
Tests Correct
Attempt pass rate 87.9% 90.9%
Flaky tests 1 3
Total Runs 66 66
Cost per result 3.374 7.311
Total Cost $0.642 $1.316
Input Price $1.500 / 1M $5.000 / 1M
Output Price $9.000 / 1M $30.000 / 1M
Total Input Tokens 69,747 78,997
Output Tokens 2,166 4,696
Reasoning Tokens 57,436 26,002
Response Time (avg) 8.20s 11.35s
Response Time (max) 76.68s 79.40s
Response Time (total) 180.47s 249.73s

Generation showcase

Hamster playing table tennis

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

#9 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 tok

#4 GPT-5.6 Sol

medium
Cost
$0.124
Time
57.2s
Tokens
4,199 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939
GPT-5.6 Sol 10.0 10.0 100.0% 0 9.40s 7,302 394 4,706

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