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OpenAI: GPT-5.4 Mini vs OpenAI: GPT-5.5

Summary

GPT-5.4 Mini vs GPT-5.5 benchmark comparison: GPT-5.5 leads on average score with 9.3 vs 5.3. GPT-5.4 Mini has the lower benchmark cost at $0.038 vs $0.907. GPT-5.4 Mini is faster at 1.13s vs 9.76s, with pass rates of 30.2% 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: 2026-06-12

Metric GPT-5.4 Mini GPT-5.4 Mini none Release: 2026-03-17 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 5.3 9.3
Rank #131 #5
Reliability 10.0 10.0
Consistency 8.8 10.0
Tests Correct
Attempt pass rate 30.2% 85.7%
Flaky tests 3 0
Total Runs 63 63
Cost per result 0.743 5.035
Total Cost $0.038 $0.907
Input Price $0.750 / 1M $5.000 / 1M
Output Price $4.500 / 1M $30.000 / 1M
Total Input Tokens 34,244 34,209
Output Tokens 2,541 2,046
Reasoning Tokens 0 22,460
Response Time (avg) 1.13s 9.76s
Response Time (max) 2.52s 56.19s
Response Time (total) 23.82s 204.92s

Generation showcase

Hamster playing table tennis

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

#131 GPT-5.4 Mini

none
Cost
$0.010
Time
11.7s
Tokens
2,151 tok

#5 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-5.4 Mini 3.1 8.1 8.3% 1 929ms 606 654 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-5.4 Mini 5.5 10.0 33.3% 0 913ms 7,305 401 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-5.4 Mini 3.0 10.0 0.0% 0 2.52s 11,019 298 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-5.4 Mini 10.0 10.0 100.0% 0 1.30s 7,140 222 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-5.4 Mini 3.5 4.4 33.3% 2 937ms 723 88 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-5.4 Mini 4.8 10.0 0.0% 0 1.82s 477 174 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-5.4 Mini 6.3 10.0 50.0% 0 728ms 660 101 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-5.4 Mini 5.4 10.0 33.3% 0 836ms 642 305 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-5.4 Mini 3.0 10.0 0.0% 0 2.32s 5,477 255 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-5.4 Mini 3.0 10.0 0.0% 0 1.33s 195 43 0
GPT-5.5 3.0 10.0 0.0% 0 10.06s 195 30 840

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