Navigate
AI BENCHY
AD
Track all your projects in one dashboard. Get 📊stats, 🔥heatmaps and 👀recordings in one self-hosted dashboard.
uxwizz.com

DeepSeek: DeepSeek V4 Flash vs OpenAI: GPT-5.5

GPT-5.5 (medium) leads on average score with 9.0 vs 7.7. DeepSeek V4 Flash (high) has the lower benchmark cost at $0.041 vs $4.137. GPT-5.5 (medium) is faster at 38.42s vs 49.75s, with pass rates of 72.7% vs 87.9%.

Recommended modelDeepSeek V4 Flash (high)It offers the best overall trade-off: a competitive score (7.7), lower cost than GPT-5.5 (medium), and balanced response time.

Last updated at: 2026-07-25

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 7.7 9.0
Rank #52 #15
Reliability 10.0 10.0
Consistency 8.2 8.9
Tests Correct
Attempt pass rate 72.7% 87.9%
Flaky tests 5 3
Total Runs 66 66
Cost per result 0.402 22.980
Total Cost $0.041 $4.137
Input Price $0.094 / 1M $5.000 / 1M
Output Price $0.188 / 1M $30.000 / 1M
Total Input Tokens 108,392 80,659
Output Tokens 14,478 5,617
Reasoning Tokens 153,687 118,819
Response Time (avg) 49.75s 38.42s
Response Time (max) 218.13s 332.10s
Response Time (total) 1094.41s 845.35s

Hamster playing table tennis

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

#52 DeepSeek V4 Flash

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

#15 GPT-5.5

medium
Cost
$0.112
Time
71.9s
Tokens
3,807 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 Flash 7.8 10.0 66.7% 0 50.60s 7,279 395 34,862
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

Quick Compare

Switch Comparison Pair