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OpenAI: GPT-5.2 vs OpenAI: GPT-5.5

Summary

GPT-5.2 vs GPT-5.5 benchmark comparison: GPT-5.5 leads on average score with 9.3 vs 8.4. GPT-5.2 has the lower benchmark cost at $0.548 vs $0.907. GPT-5.5 is faster at 9.76s vs 16.88s, with pass rates of 71.4% vs 85.7%.

Recommended model: GPT-5.5 - It has the best score here (9.3), while responding about 1.7x faster than GPT-5.2.

Last updated at: 2026-07-02

Metric GPT-5.2 GPT-5.2 medium Release: 2025-12-11 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 8.4 9.3
Rank #22 #4
Reliability 10.0 10.0
Consistency 8.4 10.0
Tests Correct
Attempt pass rate 71.4% 85.7%
Flaky tests 4 0
Total Runs 63 63
Cost per result 4.209 5.035
Total Cost $0.548 $0.907
Input Price $1.750 / 1M $5.000 / 1M
Output Price $14.000 / 1M $30.000 / 1M
Total Input Tokens 33,967 34,209
Output Tokens 2,901 2,046
Reasoning Tokens 31,932 22,460
Response Time (avg) 16.88s 9.76s
Response Time (max) 77.80s 56.19s
Response Time (total) 236.34s 204.92s

Generation showcase

Hamster playing table tennis

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

#22 GPT-5.2

medium
Cost
$0.047
Time
49.2s
Tokens
3,396 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-5.2 6.5 8.0 58.3% 1 7.81s 606 567 2,002
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-5.2 10.0 10.0 100.0% 0 22.73s 7,302 511 11,912
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-5.2 10.0 10.0 100.0% 0 14.06s 11,019 291 1,757
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-5.2 10.0 10.0 100.0% 0 3.15s 7,140 234 420
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-5.2 5.9 7.2 55.6% 1 77.80s 473 42 10,342
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-5.2 3.7 9.7 0.0% 0 4.32s 477 162 269
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-5.2 9.9 10.0 100.0% 0 3.12s 660 94 614
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-5.2 7.5 7.3 77.8% 1 5.80s 642 735 924
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-5.2 4.7 1.6 66.7% 1 10.30s 5,453 239 469
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-5.2 3.0 10.0 0.0% 0 28.18s 195 26 3,223
GPT-5.5 3.0 10.0 0.0% 0 10.06s 195 30 840

Quick Compare

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