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DeepSeek: DeepSeek V4 Pro vs Google: Gemini 3.5 Flash

Summary

DeepSeek V4 Pro vs Gemini 3.5 Flash benchmark comparison: DeepSeek V4 Pro leads on average score with 7.2 vs 7.0. DeepSeek V4 Pro has the lower benchmark cost at $0.034 vs $1.079. DeepSeek V4 Pro is faster at 6.41s vs 9.93s, with pass rates of 52.4% vs 77.8%.

Recommended model: DeepSeek V4 Pro - It has the best score here (7.2), while costing about 32.4x less than Gemini 3.5 Flash.

Last updated at: 2026-06-18

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 7.2 7.0
Rank #58 #66
Reliability 9.9 10.0
Consistency 8.8 8.9
Tests Correct
Attempt pass rate 52.4% 77.8%
Flaky tests 3 3
Total Runs 63 63
Cost per result 0.333 7.190
Total Cost $0.034 $1.079
Input Price $0.435 / 1M $1.500 / 1M
Output Price $0.870 / 1M $9.000 / 1M
Total Input Tokens 53,558 13,843
Output Tokens 11,424 117,518
Reasoning Tokens 0 0
Response Time (avg) 6.41s 9.93s
Response Time (max) 30.09s 64.36s
Response Time (total) 134.66s 178.68s

Generation showcase

Hamster playing table tennis

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

#58 DeepSeek V4 Pro

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

#66 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 3.2 6.1 16.7% 2 4.02s 540 1,168 0
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.53s 492 5,101 0
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
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 9.5 10.0 100.0% 0 23.74s 27,529 2,235 0
Gemini 3.5 Flash 3.0 10.0 0.0% 0 0ms 0 0 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 Pro 10.0 10.0 100.0% 0 4.61s 7,568 200 0
Gemini 3.5 Flash 6.5 10.0 50.0% 0 8.10s 2,781 5,895 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.3 10.0 33.3% 0 3.72s 666 24 0
Gemini 3.5 Flash 7.6 7.2 77.8% 1 10.64s 633 17,910 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.0 10.0 0.0% 0 2.05s 471 126 0
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.46s 486 1,620 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 6.3 5.8 66.7% 1 4.12s 627 713 0
Gemini 3.5 Flash 9.8 10.0 100.0% 0 3.38s 615 3,928 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 3.61s 594 442 0
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.13s 558 4,640 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 7.40s 8,105 328 0
Gemini 3.5 Flash 3.0 10.0 0.0% 0 0ms 0 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Pro 3.0 10.0 0.0% 0 5.76s 183 688 0
Gemini 3.5 Flash 2.8 1.6 33.3% 1 4.87s 156 2,497 0

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