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Anthropic: Claude Sonnet 4.6 vs OpenAI: GPT-5.2 Chat

Last updated at: 2026-04-16

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 medium Release: 2026-02-17 GPT-5.2 Chat GPT-5.2 Chat none Release: 2025-12-11
Score 8.0 7.9
Rank #26 #28
Consistency 9.5 8.7
Tests Correct
Attempt pass rate 74.1% 75.9%
Flaky tests 1 3
Total Runs 54 54
Cost per result 8.930 2.424
Total Cost $1.161 $0.291
Input Price $3.000 / 1M $1.750 / 1M
Output Price $15.000 / 1M $14.000 / 1M
Output Tokens 42,068 17,346
Reasoning Tokens 26,784 0
Response Time (avg) 12.66s 6.84s
Response Time (max) 46.35s 38.52s
Response Time (total) 126.62s 123.17s

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Score vs Response Time (avg)

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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
Claude Sonnet 4.6 6.5 10.0 50.0% 0 2.98s 1,046 1,093
GPT-5.2 Chat 8.7 7.9 91.7% 1 3.40s 1,807 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 35.76s 6,894 2,097
GPT-5.2 Chat 10.0 10.0 100.0% 0 8.97s 1,345 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 46.35s 5,871 3,962
GPT-5.2 Chat 10.0 10.0 100.0% 0 9.12s 1,243 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 13.90s 649 742
GPT-5.2 Chat 10.0 10.0 100.0% 0 3.05s 980 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 2.9 7.2 11.1% 1 0ms 25,790 16,919
GPT-5.2 Chat 5.3 10.0 33.3% 0 17.78s 7,810 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.94s 256 433
GPT-5.2 Chat 4.4 3.0 33.3% 1 3.20s 335 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 2.61s 318 552
GPT-5.2 Chat 7.5 6.1 83.3% 1 5.46s 1,528 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.80s 589 635
GPT-5.2 Chat 7.7 10.0 66.7% 0 4.42s 1,743 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 7.48s 655 351
GPT-5.2 Chat 10.0 10.0 100.0% 0 4.68s 555 0

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