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

Summary

DeepSeek V4 Flash vs GPT-5.4 Mini benchmark comparison: DeepSeek V4 Flash leads on average score with 8.3 vs 8.0. DeepSeek V4 Flash has the lower benchmark cost at $0.029 vs $0.526. GPT-5.4 Mini is faster at 22.34s vs 45.85s, with pass rates of 74.6% vs 73.0%.

Recommended model: DeepSeek V4 Flash - It has the best score here (8.3), while costing about 18.5x less than GPT-5.4 Mini.

Last updated at: 2026-06-12

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 8.3 8.0
Rank #26 #30
Reliability 10.0 10.0
Consistency 8.5 8.0
Tests Correct
Attempt pass rate 74.6% 73.0%
Flaky tests 4 5
Total Runs 63 63
Cost per result 0.299 4.381
Total Cost $0.029 $0.526
Input Price $0.098 / 1M $0.750 / 1M
Output Price $0.196 / 1M $4.500 / 1M
Total Input Tokens 39,745 34,116
Output Tokens 10,310 2,181
Reasoning Tokens 123,501 108,937
Response Time (avg) 45.85s 22.34s
Response Time (max) 218.13s 138.75s
Response Time (total) 962.79s 469.20s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#26 DeepSeek V4 Flash

high
Cost
$0.003
Time
93.1s
Tokens
7,926 tok

#30 GPT-5.4 Mini

medium
Cost
$0.056
Time
95.5s
Tokens
12,464 tok

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) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 8.3 10.0 75.0% 0 28.51s 540 140 7,770
GPT-5.4 Mini 8.6 7.9 91.7% 1 4.05s 606 296 2,876
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 7.8 10.0 66.7% 0 50.60s 7,279 395 34,862
GPT-5.4 Mini 8.4 7.4 88.9% 1 57.87s 7,305 467 40,902
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 76.57s 14,016 465 7,347
GPT-5.4 Mini 10.0 10.0 100.0% 0 17.81s 11,019 317 4,317
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 28.03s 7,290 201 1,179
GPT-5.4 Mini 10.0 10.0 100.0% 0 2.43s 7,140 234 650
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.1 4.4 44.5% 2 100.31s 666 27 59,249
GPT-5.4 Mini 4.1 4.4 44.5% 2 65.31s 619 60 43,286
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.1 3.1 66.7% 1 25.15s 471 79 632
GPT-5.4 Mini 4.5 10.0 0.0% 0 3.72s 477 150 510
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 15.36s 627 63 1,622
GPT-5.4 Mini 9.8 10.0 100.0% 0 2.13s 660 96 1,185
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 8.2 7.2 88.9% 1 26.11s 594 196 1,767
GPT-5.4 Mini 7.8 10.0 66.7% 0 4.37s 642 278 2,443
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 10.0 10.0 100.0% 0 74.73s 8,079 228 542
GPT-5.4 Mini 4.7 1.6 66.7% 1 9.62s 5,453 251 2,594
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 3.0 10.0 0.0% 0 54.46s 183 8,516 8,531
GPT-5.4 Mini 3.0 10.0 0.0% 0 30.10s 195 32 10,174

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