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Anthropic: Claude Opus 4.6 vs OpenAI: GPT-5.4 Nano

Last updated at: 2026-04-04

Metric Claude Opus 4.6 Claude Opus 4.6 medium Release: 2026-02-05 GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17
Score 7.5 7.4
Rank #34 #35
Consistency 9.0 9.0
Tests Correct
Attempt pass rate 68.6% 66.7%
Flaky tests 2 2
Total Runs 51 51
Cost per result 11.973 0.769
Total Cost $1.317 $0.077
Input Price $5.000 / 1M $0.200 / 1M
Output Price $25.000 / 1M $1.250 / 1M
Output Tokens 26,343 2,474
Reasoning Tokens 17,434 54,516
Response Time (avg) 20.87s 11.08s
Response Time (max) 83.40s 94.06s
Response Time (total) 208.73s 188.39s

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) Output Tokens Reasoning Tokens
Claude Opus 4.6 6.4 5.8 66.7% 2 7.45s 986 1,071
GPT-5.4 Nano 8.3 10.0 75.0% 0 4.52s 683 2,254
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 76.66s 8,178 5,194
GPT-5.4 Nano 9.8 10.0 100.0% 0 24.13s 349 5,719
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 7.37s 691 757
GPT-5.4 Nano 10.0 10.0 100.0% 0 2.54s 234 516
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 3.0 10.0 0.0% 0 83.40s 14,642 8,687
GPT-5.4 Nano 5.9 7.2 55.6% 1 38.18s 60 43,325
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 5.04s 188 292
GPT-5.4 Nano 4.5 10.0 0.0% 0 4.15s 179 443
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 2.43s 266 467
GPT-5.4 Nano 9.8 10.0 100.0% 0 1.88s 95 521
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 7.7 10.0 66.7% 0 4.60s 531 637
GPT-5.4 Nano 4.0 7.1 22.2% 1 3.65s 640 1,356
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Opus 4.6 10.0 10.0 100.0% 0 9.73s 861 329
GPT-5.4 Nano 10.0 10.0 100.0% 0 7.71s 234 382

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