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OpenAI: GPT-4o-mini vs OpenAI: GPT-5.5

Summary

GPT-4o-mini vs GPT-5.5 benchmark comparison: GPT-5.5 leads on average score with 9.3 vs 5.0. GPT-4o-mini has the lower benchmark cost at $0.006 vs $0.907. GPT-4o-mini is faster at 1.77s vs 9.76s, with pass rates of 23.8% vs 85.7%.

Recommended model: GPT-5.5 - It has the strongest score in this comparison (9.3) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-02

Metric GPT-4o-mini GPT-4o-mini none Release: 2024-07-18 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 5.0 9.3
Rank #144 #4
Reliability 10.0 10.0
Consistency 9.9 10.0
Tests Correct
Attempt pass rate 23.8% 85.7%
Flaky tests 0 0
Total Runs 63 63
Cost per result 0.119 5.035
Total Cost $0.006 $0.907
Input Price $0.150 / 1M $5.000 / 1M
Output Price $0.600 / 1M $30.000 / 1M
Total Input Tokens 31,518 34,209
Output Tokens 1,982 2,046
Reasoning Tokens 0 22,460
Response Time (avg) 1.77s 9.76s
Response Time (max) 7.58s 56.19s
Response Time (total) 24.80s 204.92s

Generation showcase

Hamster playing table tennis

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

#144 GPT-4o-mini

none
Cost
$0.001
Time
6.6s
Tokens
742 tok

#4 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 4.8 10.0 25.0% 0 1.34s 618 186 0
GPT-5.5 10.0 10.0 100.0% 0 4.41s 606 238 1,020
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 3.2 9.6 0.0% 0 1.63s 7,314 367 0
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 3.0 10.0 0.0% 0 7.58s 8,298 568 0
GPT-5.5 10.0 10.0 100.0% 0 9.56s 11,019 303 717
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 10.0 10.0 100.0% 0 1.27s 7,161 183 0
GPT-5.5 10.0 10.0 100.0% 0 3.28s 7,140 228 157
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 3.0 10.0 0.0% 0 637ms 732 15 0
GPT-5.5 5.3 10.0 33.3% 0 28.05s 723 69 11,609
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 4.0 10.0 0.0% 0 909ms 480 66 0
GPT-5.5 10.0 10.0 100.0% 0 5.17s 477 133 245
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 6.3 10.0 50.0% 0 1.11s 666 69 0
GPT-5.5 9.9 10.0 100.0% 0 3.74s 660 93 415
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 3.5 10.0 0.0% 0 1.21s 651 308 0
GPT-5.5 10.0 10.0 100.0% 0 4.74s 642 279 954
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 10.0 10.0 100.0% 0 2.51s 5,400 205 0
GPT-5.5 10.0 10.0 100.0% 0 4.96s 5,445 250 101
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-4o-mini 3.0 10.0 0.0% 0 794ms 198 15 0
GPT-5.5 3.0 10.0 0.0% 0 10.06s 195 30 840

Quick Compare

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