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DeepSeek: DeepSeek V4 Flash vs Google: Gemini 3.5 Flash

Summary

DeepSeek V4 Flash vs Gemini 3.5 Flash benchmark comparison: Gemini 3.5 Flash leads on average score with 9.1 vs 8.3. DeepSeek V4 Flash has the lower benchmark cost at $0.027 vs $0.582. Gemini 3.5 Flash is faster at 4.94s vs 45.85s, with pass rates of 74.6% vs 87.3%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.1), while responding about 9.3x faster than DeepSeek V4 Flash.

Last updated at: 2026-07-02

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19
Score 8.3 9.1
Rank #23 #8
Reliability 10.0 10.0
Consistency 8.5 9.6
Tests Correct
Attempt pass rate 74.6% 87.3%
Flaky tests 4 1
Total Runs 63 63
Cost per result 0.299 3.229
Total Cost $0.027 $0.582
Input Price $0.090 / 1M $1.500 / 1M
Output Price $0.180 / 1M $9.000 / 1M
Total Input Tokens 39,745 36,936
Output Tokens 10,310 2,001
Reasoning Tokens 123,501 56,408
Response Time (avg) 45.85s 4.94s
Response Time (max) 218.13s 18.07s
Response Time (total) 962.79s 103.79s

Generation showcase

Hamster playing table tennis

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

#23 DeepSeek V4 Flash

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

#8 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.09s 492 171 3,385
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
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 12.05s 12,873 351 7,807
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 4.07s 7,548 279 3,784
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
Gemini 3.5 Flash 7.7 10.0 66.7% 0 5.24s 633 12 8,047
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.52s 486 115 1,144
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
Gemini 3.5 Flash 9.9 10.0 100.0% 0 2.70s 615 71 2,855
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
Gemini 3.5 Flash 7.7 10.0 66.7% 0 2.38s 558 295 2,747
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.81s 5,457 234 455
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.75s 156 12 1,245

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