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Google: Gemini 3.1 Pro Preview vs OpenAI: GPT-5.5

GPT-5.5 (low) leads on average score with 9.3 vs 9.2. GPT-5.5 (low) has the lower benchmark cost at $1.253 vs $1.361. GPT-5.5 (low) is faster at 10.13s vs 21.47s, with pass rates of 90.9% vs 86.4%.

Recommended modelGPT-5.5 (low)It has the best score here (9.3), while responding about 2.1x faster than Gemini 3.1 Pro Preview (medium).

Last updated at: 2026-07-25

Metric Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 9.2 9.3
Rank #10 #9
Reliability 10.0 10.0
Consistency 10.0 10.0
Tests Correct
Attempt pass rate 90.9% 86.4%
Flaky tests 0 0
Total Runs 66 66
Cost per result 6.801 6.594
Total Cost $1.361 $1.253
Input Price $2.000 / 1M $5.000 / 1M
Output Price $12.000 / 1M $30.000 / 1M
Total Input Tokens 92,287 80,058
Output Tokens 5,232 5,378
Reasoning Tokens 92,726 23,040
Response Time (avg) 21.47s 10.13s
Response Time (max) 88.68s 56.19s
Response Time (total) 322.08s 222.82s

Hamster playing table tennis

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

#10 Gemini 3.1 Pro Preview

medium
Cost
$0.115
Time
87.2s
Tokens
9,629 tok

#9 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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 3.1 Pro Preview 7.9 9.9 66.7% 0 40.17s 8,124 435 41,247
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

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