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DeepSeek: DeepSeek V4 Flash vs OpenAI: GPT-5.4 Mini

Last updated at: 2026-04-24

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17
Score 7.8 7.3
Rank #35 #51
Consistency 7.8 7.4
Tests Correct
Attempt pass rate 79.6% 70.4%
Flaky tests 5 6
Total Runs 52 54
Cost per result 0.189 3.313
Total Cost $0.021 $0.299
Input Price $0.140 / 1M $0.750 / 1M
Output Price $0.280 / 1M $4.500 / 1M
Output Tokens 1,757 2,131
Reasoning Tokens 55,907 59,567
Response Time (avg) 47.47s 15.22s
Response Time (max) 255.28s 102.91s
Response Time (total) 854.45s 273.90s

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 Flash 8.3 10.0 75.0% 0 28.51s 140 7,770
GPT-5.4 Mini 8.6 7.9 91.7% 1 4.05s 296 2,876
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 62.48s 369 9,361
GPT-5.4 Mini 10.0 10.0 100.0% 0 7.76s 423 1,548
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 76.57s 465 7,347
GPT-5.4 Mini 10.0 10.0 100.0% 0 17.81s 317 4,317
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 28.03s 201 1,179
GPT-5.4 Mini 10.0 10.0 100.0% 0 2.43s 234 650
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.1 4.4 44.5% 2 112.69s 19 24,857
GPT-5.4 Mini 4.1 4.4 44.5% 2 65.31s 60 43,286
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.1 3.1 66.7% 1 25.15s 79 632
GPT-5.4 Mini 4.5 10.0 0.0% 0 3.72s 150 510
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 15.36s 63 1,622
GPT-5.4 Mini 7.4 6.5 66.7% 1 2.50s 129 1,337
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.4 4.5 77.8% 2 25.53s 193 2,597
GPT-5.4 Mini 6.8 7.9 55.6% 1 4.33s 271 2,449
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 74.73s 228 542
GPT-5.4 Mini 4.7 1.6 66.7% 1 9.62s 251 2,594

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