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OpenAI: GPT-5.5 vs OpenAI: GPT-5.5

GPT-5.5 (low) leads on average score with 9.3 vs 9.0. GPT-5.5 (low) has the lower benchmark cost at $1.253 vs $4.137. GPT-5.5 (low) is faster at 10.13s vs 38.42s, with pass rates of 86.4% vs 87.9%.

Recommended modelGPT-5.5 (low)It has the best score here (9.3), while costing about 3.3x less than GPT-5.5 (medium).

Last updated at: 2026-07-25

Metric GPT-5.5 GPT-5.5 low Release: 2026-04-24 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 9.3 9.0
Rank #9 #15
Reliability 10.0 10.0
Consistency 10.0 8.9
Tests Correct
Attempt pass rate 86.4% 87.9%
Flaky tests 0 3
Total Runs 66 66
Cost per result 6.594 22.980
Total Cost $1.253 $4.137
Input Price $5.000 / 1M $5.000 / 1M
Output Price $30.000 / 1M $30.000 / 1M
Total Input Tokens 80,058 80,659
Output Tokens 5,378 5,617
Reasoning Tokens 23,040 118,819
Response Time (avg) 10.13s 38.42s
Response Time (max) 56.19s 332.10s
Response Time (total) 222.82s 845.35s

Hamster playing table tennis

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

#9 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 tok

#15 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

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