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OpenAI: GPT-5.5 vs OpenAI: GPT-5 Mini

Last updated at: 2026-04-24

Metric GPT-5.5 GPT-5.5 none Release: 2026-04-24 GPT-5 Mini GPT-5 Mini medium Release: 2025-08-07
Score 6.8 7.0
Rank #58 #53
Reliability N/A N/A
Consistency 8.3 8.6
Tests Correct
Attempt pass rate 61.1% 61.1%
Flaky tests 4 3
Total Runs 54 54
Cost per result 2.162 1.415
Total Cost $0.195 $0.128
Input Price $5.000 / 1M $0.250 / 1M
Output Price $30.000 / 1M $2.000 / 1M
Output Tokens 1,910 6,379
Reasoning Tokens 0 53,482
Response Time (avg) 1.83s 23.98s
Response Time (max) 5.56s 88.15s
Response Time (total) 32.86s 431.56s

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) Output Tokens Reasoning Tokens
GPT-5.5 6.9 7.9 66.7% 1 1.31s 213 0
GPT-5 Mini 7.1 7.6 66.7% 1 13.86s 1,715 6,378
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 2.05s 426 0
GPT-5 Mini 10.0 10.0 100.0% 0 23.18s 483 4,160
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 3.0 10.0 0.0% 0 5.56s 300 0
GPT-5 Mini 10.0 10.0 100.0% 0 88.15s 754 11,520
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 1.18s 222 0
GPT-5 Mini 10.0 10.0 100.0% 0 12.58s 453 3,200
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 2.9 7.2 11.1% 1 1.31s 52 0
GPT-5 Mini 3.6 7.2 22.2% 1 44.63s 293 14,016
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 3.41s 124 0
GPT-5 Mini 4.5 10.0 0.0% 0 13.50s 349 1,856
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 6.2 5.8 66.7% 1 1.15s 81 0
GPT-5 Mini 8.0 6.6 83.3% 1 15.66s 318 4,992
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 6.7 7.9 55.6% 1 1.36s 245 0
GPT-5 Mini 5.6 9.8 33.3% 0 14.09s 1,527 5,760
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 3.90s 247 0
GPT-5 Mini 10.0 10.0 100.0% 0 18.64s 487 1,600

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