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OpenAI: GPT-5.2 vs OpenAI: GPT-5.3 Chat

Last updated at: 2026-04-04

Metric GPT-5.2 GPT-5.2 medium Release: 2025-12-11 GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03
Score 7.3 7.6
Rank #37 #33
Consistency 8.0 8.6
Tests Correct
Attempt pass rate 70.6% 66.7%
Flaky tests 4 3
Total Runs 51 51
Cost per result 3.131 3.177
Total Cost $0.314 $0.318
Input Price $1.750 / 1M $1.750 / 1M
Output Price $14.000 / 1M $14.000 / 1M
Output Tokens 2,238 19,348
Reasoning Tokens 16,811 0
Response Time (avg) 13.93s 5.68s
Response Time (max) 77.80s 18.33s
Response Time (total) 139.29s 96.58s

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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-5.2 6.5 8.0 58.3% 1 7.81s 567 2,002
GPT-5.3 Chat 6.7 8.1 58.3% 1 3.86s 3,167 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 10.0 10.0 100.0% 0 14.06s 291 1,757
GPT-5.3 Chat 10.0 10.0 100.0% 0 11.96s 2,614 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 10.0 10.0 100.0% 0 3.15s 234 420
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.21s 942 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 5.9 7.2 55.6% 1 77.80s 42 10,342
GPT-5.3 Chat 3.5 4.4 33.3% 2 13.01s 8,264 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 3.7 9.7 0.0% 0 4.32s 162 269
GPT-5.3 Chat 4.6 10.0 0.0% 0 1.99s 319 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 9.9 10.0 100.0% 0 3.12s 94 614
GPT-5.3 Chat 8.3 10.0 50.0% 0 3.29s 1,455 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 7.7 7.3 77.8% 1 5.47s 609 938
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.93s 1,726 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.2 4.7 1.6 66.7% 1 10.30s 239 469
GPT-5.3 Chat 10.0 10.0 100.0% 0 8.36s 861 0

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