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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: Gemini 3.5 Flash leads on average score with 9.1 vs 7.6. DeepSeek V4 Pro has the lower benchmark cost at $0.157 vs $0.582. Gemini 3.5 Flash is faster at 4.94s vs 77.20s, with pass rates of 66.7% vs 87.3%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.1), while responding about 15.6x faster than DeepSeek V4 Pro.

Last updated at: 2026-07-02

Metric DeepSeek V4 Pro DeepSeek V4 Pro high Release: 2026-04-24 Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19
Score 7.6 9.1
Rank #43 #8
Reliability 9.3 10.0
Consistency 7.0 9.6
Tests Correct
Attempt pass rate 66.7% 87.3%
Flaky tests 8 1
Total Runs 63 63
Cost per result 1.742 3.229
Total Cost $0.157 $0.582
Input Price $0.435 / 1M $1.500 / 1M
Output Price $0.870 / 1M $9.000 / 1M
Total Input Tokens 38,726 36,936
Output Tokens 6,334 2,001
Reasoning Tokens 159,151 56,408
Response Time (avg) 77.20s 4.94s
Response Time (max) 416.76s 18.07s
Response Time (total) 1621.17s 103.79s

Generation showcase

Hamster playing table tennis

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

#43 DeepSeek V4 Pro

high
Cost
$0.023
Time
257.6s
Tokens
14,870 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 Pro 5.7 5.9 58.3% 2 25.70s 536 149 3,214
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 Pro 6.1 4.6 66.7% 2 243.00s 5,090 383 84,580
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 Pro 10.0 10.0 100.0% 0 38.17s 14,060 454 5,836
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 Pro 10.0 10.0 100.0% 0 25.03s 7,690 274 2,166
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 Pro 3.6 7.2 22.2% 1 151.46s 569 4,404 50,391
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 Pro 10.0 10.0 100.0% 0 8.83s 471 115 1,013
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 Pro 7.8 6.6 83.3% 1 8.73s 627 66 2,726
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 Pro 6.9 4.9 77.8% 2 56.85s 591 178 2,563
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 Pro 9.8 10.0 100.0% 0 15.92s 8,909 295 701
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 Pro 3.0 10.0 0.0% 0 34.01s 183 16 5,961
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.75s 156 12 1,245

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