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DeepSeek V4 Pro vs Gemini 3.5 Flash

Gemini 3.5 Flash leads on average score with 6.9 vs 6.8. DeepSeek V4 Pro has the lower benchmark cost at $0.351 vs $1.093. Gemini 3.5 Flash is faster at 10.18s vs 11.71s, with pass rates of 47.0% vs 69.7%.

Last updated at: 2026-08-20

Rank
#133
Total Output Tokens
35,547
Response Time (avg)
11.71s
Total Cost
$0.351
Rank
#127
Total Output Tokens
119,100
Response Time (avg)
10.18s
Total Cost
$1.093
Recommended model DeepSeek V4 Pro

Its score stays close to the best score here (6.8 vs 6.9), while costing about 3.1x less than Gemini 3.5 Flash.

Detailed comparison

Metric DeepSeek V4 Pro DeepSeek V4 Pro none Release: 2026-04-24 Gemini 3.5 Flash Gemini 3.5 Flash none Release: 2026-05-19
Score 6.8 6.9
Rank #133 #127
Reliability 10.0 10.0
Consistency 8.6 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 47.0% 69.7%
Flaky tests 4 3
Total Runs 66 66
Cost per result 1.061 7.805
Total Cost $0.351 $1.093
Input Price $1.600 / 1M $1.500 / 1M
Output Price $3.200 / 1M $9.000 / 1M
Total Input Tokens 148,078 13,852
Output Tokens 35,547 119,100
Reasoning Tokens 0 0
Response Time (avg) 11.71s 10.18s
Response Time (max) 119.44s 64.36s
Response Time (total) 257.67s 183.29s
Parameters 1.6T total (49B active) ~500B total (~20B active)
Availability Open source Closed

Model generation showcase

Hamster playing table tennis

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

#133 DeepSeek V4 Pro

none
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

#127 Gemini 3.5 Flash

none
Cost
$0.225
Time
125.5s
Tokens
25,004 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.6 10.0 33.3% 0 13.38s 7,275 5,500 0
Gemini 3.5 Flash 8.8 7.8 88.9% 1 34.69s 8,122 75,927 0

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