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

Summary

Gemini 3.5 Flash (low) vs GPT-5.6 Sol (low) benchmark comparison: GPT-5.6 Sol (low) leads on average score with 9.5 vs 9.2. Gemini 3.5 Flash (low) has the lower benchmark cost at $0.349 vs $0.649. Gemini 3.5 Flash (low) is faster at 3.27s vs 8.29s, with pass rates of 90.5% vs 85.7%.

Recommended model: Gemini 3.5 Flash (low) - Its score stays close to the best score here (9.2 vs 9.5), while costing about 1.9x less than GPT-5.6 Sol (low).

Last updated at: 2026-07-09

Metric Gemini 3.5 Flash Gemini 3.5 Flash low Release: 2026-05-19 GPT-5.6 Sol GPT-5.6 Sol low Release: 2026-07-09
Score 9.2 9.5
Rank #8 #3
Reliability 10.0 10.0
Consistency 10.0 9.2
Tests Correct
Attempt pass rate 90.5% 85.7%
Flaky tests 0 2
Total Runs 63 63
Cost per result 1.834 3.816
Total Cost $0.349 $0.649
Input Price $1.500 / 1M $5.000 / 1M
Output Price $9.000 / 1M $30.000 / 1M
Total Input Tokens 36,938 34,218
Output Tokens 2,033 1,898
Reasoning Tokens 30,519 14,023
Response Time (avg) 3.27s 8.29s
Response Time (max) 9.05s 53.91s
Response Time (total) 68.65s 174.04s

Generation showcase

Hamster playing table tennis

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

#8 Gemini 3.5 Flash

low
Cost
$0.068
Time
39.1s
Tokens
7,588 tok

#3 GPT-5.6 Sol

low
Cost
$0.062
Time
26.7s
Tokens
2,150 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 2.52s 494 209 2,536
GPT-5.6 Sol 8.3 10.0 75.0% 0 2.60s 606 174 492
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.8 10.0 66.7% 0 6.71s 8,118 458 13,420
GPT-5.6 Sol 10.0 10.0 100.0% 0 11.25s 7,302 412 3,482
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 6.44s 12,873 351 3,050
GPT-5.6 Sol 10.0 10.0 100.0% 0 9.87s 11,019 318 792
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 1.81s 7,548 279 1,164
GPT-5.6 Sol 10.0 10.0 100.0% 0 1.82s 7,140 222 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 7.7 10.0 66.7% 0 3.39s 633 12 4,538
GPT-5.6 Sol 5.3 7.2 44.4% 1 29.07s 723 71 7,822
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 2.27s 486 119 916
GPT-5.6 Sol 10.0 10.0 100.0% 0 3.07s 477 99 135
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.9 10.0 100.0% 0 1.86s 615 71 1,652
GPT-5.6 Sol 10.0 10.0 100.0% 0 2.27s 660 90 146
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 2.35s 558 288 2,150
GPT-5.6 Sol 8.2 7.2 88.9% 1 3.44s 642 224 534
Tool Calling 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 3.27s 5,457 234 403
GPT-5.6 Sol 10.0 10.0 100.0% 0 7.56s 5,454 258 294
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 1.88s 156 12 690
GPT-5.6 Sol 10.0 10.0 100.0% 0 3.67s 195 30 326

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