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DeepSeek: DeepSeek V4 Flash vs OpenAI: GPT-5.3 Chat

DeepSeek V4 Flash (high) leads on average score with 7.7 vs 7.5. DeepSeek V4 Flash (high) has the lower benchmark cost at $0.042 vs $0.571. GPT-5.3 Chat is faster at 6.88s vs 49.75s, with pass rates of 72.7% vs 68.2%.

Recommended modelDeepSeek V4 Flash (high)It has the best score here (7.7), while costing about 13.6x less than GPT-5.3 Chat.

Last updated at: 2026-07-17

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03
Score 7.7 7.5
Rank #43 #52
Reliability 10.0 10.0
Consistency 8.2 8.2
Tests Correct
Attempt pass rate 72.7% 68.2%
Flaky tests 5 5
Total Runs 66 66
Cost per result 0.402 4.387
Total Cost $0.042 $0.571
Input Price $0.098 / 1M $1.750 / 1M
Output Price $0.196 / 1M $14.000 / 1M
Total Input Tokens 108,392 78,990
Output Tokens 14,478 30,854
Reasoning Tokens 153,687 0
Response Time (avg) 49.75s 6.88s
Response Time (max) 218.13s 18.33s
Response Time (total) 1094.41s 151.31s

Hamster playing table tennis

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

#43 DeepSeek V4 Flash

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

#52 GPT-5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 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-5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0

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