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DeepSeek: DeepSeek V4 Flash vs Google: Gemini 3.1 Pro Preview

Summary

DeepSeek V4 Flash vs Gemini 3.1 Pro Preview benchmark comparison: Gemini 3.1 Pro Preview leads on average score with 9.2 vs 8.3. DeepSeek V4 Flash has the lower benchmark cost at $0.027 vs $1.054. Gemini 3.1 Pro Preview is faster at 20.14s vs 45.85s, with pass rates of 74.6% vs 90.5%.

Recommended model: Gemini 3.1 Pro Preview - It has the best score here (9.2), while responding about 2.3x faster than DeepSeek V4 Flash.

Last updated at: 2026-06-17

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19
Score 8.3 9.2
Rank #23 #7
Reliability 10.0 10.0
Consistency 8.5 10.0
Tests Correct
Attempt pass rate 74.6% 90.5%
Flaky tests 4 0
Total Runs 63 63
Cost per result 0.299 5.546
Total Cost $0.027 $1.054
Input Price $0.090 / 1M $2.000 / 1M
Output Price $0.180 / 1M $12.000 / 1M
Total Input Tokens 39,745 41,617
Output Tokens 10,310 1,977
Reasoning Tokens 123,501 78,896
Response Time (avg) 45.85s 20.14s
Response Time (max) 218.13s 88.68s
Response Time (total) 962.79s 281.92s

Generation showcase

Hamster playing table tennis

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

#23 DeepSeek V4 Flash

high
Cost
$0.003
Time
93.1s
Tokens
7,926 tok

#7 Gemini 3.1 Pro Preview

medium
Cost
$0.115
Time
87.2s
Tokens
9,629 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 8.3 10.0 75.0% 0 28.51s 540 140 7,770
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.90s 498 112 3,218
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 7.8 10.0 66.7% 0 50.60s 7,279 395 34,862
Gemini 3.1 Pro Preview 7.9 9.9 66.7% 0 40.17s 8,124 435 41,247
Combined 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 76.57s 14,016 465 7,347
Gemini 3.1 Pro Preview 9.5 10.0 100.0% 0 40.61s 17,240 432 9,281
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 28.03s 7,290 201 1,179
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.72s 7,265 279 3,904
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.1 4.4 44.5% 2 100.31s 666 27 59,249
Gemini 3.1 Pro Preview 7.7 10.0 66.7% 0 32.73s 635 18 12,424
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 6.1 3.1 66.7% 1 25.15s 471 79 632
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 11.77s 490 108 1,179
Instructions following 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 15.36s 627 63 1,622
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 9.56s 621 72 2,236
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 8.2 7.2 88.9% 1 26.11s 594 196 1,767
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 6.90s 570 235 3,128
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 74.73s 8,079 228 542
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 23.15s 6,018 274 982
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 54.46s 183 8,516 8,531
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 6.27s 156 12 1,297

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