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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 9.6 vs 5.0. DeepSeek V4 Flash has the lower benchmark cost at $0.008 vs $1.115. Gemini 3.5 Flash is faster at 8.84s vs 26.75s, with pass rates of 30.2% vs 96.8%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.6), while responding about 3.0x faster than DeepSeek V4 Flash.

Last updated at: 2026-06-04

Metric DeepSeek V4 Flash DeepSeek V4 Flash none Release: 2026-04-24 Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19
Score 5.0 9.6
Rank #139 #2
Reliability 10.0 10.0
Consistency 8.9 9.6
Tests Correct
Attempt pass rate 30.2% 96.8%
Flaky tests 3 1
Total Runs 63 63
Cost per result 0.203 5.575
Total Cost $0.008 $1.115
Input Price $0.099 / 1M $1.500 / 1M
Output Price $0.197 / 1M $9.000 / 1M
Total Input Tokens 50,127 37,594
Output Tokens 13,710 1,975
Reasoning Tokens 0 115,638
Response Time (avg) 26.75s 8.84s
Response Time (max) 111.96s 34.82s
Response Time (total) 561.82s 185.57s

Generation showcase

Hamster playing table tennis

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

#139 DeepSeek V4 Flash

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

#2 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.57s 492 174 4,997
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.37s 12,873 351 16,323
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.43s 7,548 279 8,466
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
Gemini 3.5 Flash 7.6 7.2 77.8% 1 14.09s 633 12 24,721
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.63s 486 115 1,650
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.35s 615 70 3,799
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.23s 558 241 4,940
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
Gemini 3.5 Flash 9.8 10.0 100.0% 0 4.96s 6,115 265 1,608
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
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.94s 156 12 2,005

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