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DeepSeek: DeepSeek V4 Pro vs OpenAI: GPT-5 Nano

Last updated at: 2026-04-24

Metric DeepSeek V4 Pro DeepSeek V4 Pro none Release: 2026-04-24 GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07
Score 6.7 6.3
Rank #59 #65
Consistency 9.5 6.5
Tests Correct
Attempt pass rate 51.9% 59.3%
Flaky tests 1 8
Total Runs 26 54
Cost per result 0.317 0.942
Total Cost $0.029 $0.066
Input Price $1.740 / 1M $0.050 / 1M
Output Price $3.480 / 1M $0.400 / 1M
Output Tokens 1,596 4,980
Reasoning Tokens 0 156,288
Response Time (avg) 24.23s 44.13s
Response Time (max) 109.46s 204.02s
Response Time (total) 436.17s 485.47s

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
DeepSeek V4 Pro 4.8 10.0 25.0% 0 36.12s 221 0
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 1,221 21,184
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 33.40s 246 0
GPT-5 Nano 6.7 3.5 66.7% 1 40.73s 480 12,992
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 9.5 10.0 100.0% 0 34.55s 826 0
GPT-5 Nano 10.0 10.0 100.0% 0 65.96s 578 17,984
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 54.04s 65 0
GPT-5 Nano 3.7 1.7 50.0% 2 21.42s 453 10,560
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.3 10.0 33.3% 0 3.74s 6 0
GPT-5 Nano 5.2 4.4 55.6% 2 204.02s 237 64,448
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 4.5 10.0 0.0% 0 6.06s 45 0
GPT-5 Nano 4.1 10.0 0.0% 0 17.51s 202 4,608
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 6.5 10.0 50.0% 0 3.57s 22 0
GPT-5 Nano 8.5 6.8 83.3% 1 11.90s 382 4,096
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 6.0 7.1 44.4% 1 28.25s 92 0
GPT-5 Nano 5.3 7.2 44.4% 1 19.81s 869 13,440
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 6.47s 73 0
GPT-5 Nano 10.0 10.0 100.0% 0 33.30s 558 6,976

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