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DeepSeek: DeepSeek V4 Flash vs OpenAI: GPT-4o-mini

Summary

DeepSeek V4 Flash vs GPT-4o-mini benchmark comparison: DeepSeek V4 Flash leads on average score with 5.5 vs 5.0. GPT-4o-mini has the lower benchmark cost at $0.006 vs $0.007. GPT-4o-mini is faster at 1.77s vs 26.75s, with pass rates of 30.2% vs 23.8%.

Recommended model: DeepSeek V4 Flash - It has the strongest score in this comparison (5.5) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-02

Metric DeepSeek V4 Flash DeepSeek V4 Flash none Release: 2026-04-24 GPT-4o-mini GPT-4o-mini none Release: 2024-07-18
Score 5.5 5.0
Rank #121 #144
Reliability 10.0 10.0
Consistency 8.9 9.9
Tests Correct
Attempt pass rate 30.2% 23.8%
Flaky tests 3 0
Total Runs 63 63
Cost per result 0.203 0.119
Total Cost $0.007 $0.006
Input Price $0.090 / 1M $0.150 / 1M
Output Price $0.180 / 1M $0.600 / 1M
Total Input Tokens 50,127 31,518
Output Tokens 13,710 1,982
Reasoning Tokens 0 0
Response Time (avg) 26.75s 1.77s
Response Time (max) 111.96s 7.58s
Response Time (total) 561.82s 24.80s

Generation showcase

Hamster playing table tennis

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

#121 DeepSeek V4 Flash

none
Cost
$0.004
Time
157.6s
Tokens
11,297 tok

#144 GPT-4o-mini

none
Cost
$0.001
Time
6.6s
Tokens
742 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 3.0 10.0 0.0% 0 20.18s 540 174 0
GPT-4o-mini 4.8 10.0 25.0% 0 1.34s 618 186 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.2 7.4 11.1% 1 17.13s 7,279 9,717 0
GPT-4o-mini 3.2 9.6 0.0% 0 1.63s 7,314 367 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.5 2.1 66.7% 1 111.96s 24,398 2,664 0
GPT-4o-mini 3.0 10.0 0.0% 0 7.58s 8,298 568 0
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 23.79s 7,290 195 0
GPT-4o-mini 10.0 10.0 100.0% 0 1.27s 7,161 183 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 5.3 10.0 33.3% 0 19.73s 666 18 0
GPT-4o-mini 3.0 10.0 0.0% 0 637ms 732 15 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.2 9.9 0.0% 0 23.74s 471 67 0
GPT-4o-mini 4.0 10.0 0.0% 0 909ms 480 66 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.5 10.0 50.0% 0 17.54s 627 321 0
GPT-4o-mini 6.3 10.0 50.0% 0 1.11s 666 69 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 3.1 7.3 11.1% 1 23.72s 594 207 0
GPT-4o-mini 3.5 10.0 0.0% 0 1.21s 651 308 0
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 77.93s 8,079 327 0
GPT-4o-mini 10.0 10.0 100.0% 0 2.51s 5,400 205 0
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 3.07s 183 20 0
GPT-4o-mini 3.0 10.0 0.0% 0 794ms 198 15 0

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