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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 9.4 vs 5.0. DeepSeek V4 Flash has the lower benchmark cost at $0.008 vs $0.349. Gemini 3.5 Flash is faster at 3.27s vs 26.75s, with pass rates of 30.2% vs 90.5%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.4), while responding about 8.2x 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 low Release: 2026-05-19
Score 5.0 9.4
Rank #139 #3
Reliability 10.0 10.0
Consistency 8.9 10.0
Tests Correct
Attempt pass rate 30.2% 90.5%
Flaky tests 3 0
Total Runs 63 63
Cost per result 0.203 1.834
Total Cost $0.008 $0.349
Input Price $0.099 / 1M $1.500 / 1M
Output Price $0.197 / 1M $9.000 / 1M
Total Input Tokens 50,127 36,938
Output Tokens 13,710 2,033
Reasoning Tokens 0 30,519
Response Time (avg) 26.75s 3.27s
Response Time (max) 111.96s 9.05s
Response Time (total) 561.82s 68.65s

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

#3 Gemini 3.5 Flash

low
Cost
$0.068
Time
39.1s
Tokens
7,588 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 2.52s 494 209 2,536
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 7.8 10.0 66.7% 0 6.71s 8,118 458 13,420
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 6.44s 12,873 351 3,050
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 1.81s 7,548 279 1,164
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 7.7 10.0 66.7% 0 3.39s 633 12 4,538
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 2.27s 486 119 916
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 9.9 10.0 100.0% 0 1.86s 615 71 1,652
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 2.35s 558 288 2,150
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 10.0 10.0 100.0% 0 3.27s 5,457 234 403
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 1.88s 156 12 690

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