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DeepSeek V4 Flash 0423 (high) vs GPT-5.6 Luna (medium)

DeepSeek V4 Flash 0423 (high) leads on average score with 7.6 vs 7.4. DeepSeek V4 Flash 0423 (high) has the lower benchmark cost at $0.042 vs $0.072. GPT-5.6 Luna (medium) is faster at 7.43s vs 51.81s, with pass rates of 69.7% vs 62.1%.

Last updated at: 2026-09-18

Compared models

Rank
#97
Total Output Tokens
211,310
Response Time (avg)
51.81s
Total Cost
$0.042
Rank
#116
Total Output Tokens
44,525
Response Time (avg)
7.43s
Total Cost
$0.072
Recommended model GPT-5.6 Luna (medium)

Its score stays close to the best score here (7.4 vs 7.6), while responding about 7.0x faster than DeepSeek V4 Flash 0423 (high).

Detailed comparison

Metric DeepSeek V4 Flash 0423 DeepSeek V4 Flash 0423 high Release: 2026-04-24 GPT-5.6 Luna GPT-5.6 Luna medium Release: 2026-07-09
Score 7.6 7.4
Rank #97 #116
Reliability 10.0 10.0
Consistency 8.5 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 69.7% 62.1%
Flaky tests 4 2
Total Runs 66 66
Cost per result 0.446 2.601
Total Cost $0.042 $0.072
Input Price $0.089 / 1M $0.200 / 1M
Output Price $0.178 / 1M $1.200 / 1M
Total Input Tokens 108,480 89,685
Output Tokens 37,229 5,701
Reasoning Tokens 174,081 38,824
Response Time (avg) 51.81s 7.43s
Response Time (max) 218.13s 29.85s
Response Time (total) 1139.75s 163.54s
Parameters 284B total (13B active) ~400B total (~17B active)
Availability Open source Closed

Model generation showcase

Hamster playing table tennis

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

#97 DeepSeek V4 Flash 0423

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

#116 GPT-5.6 Luna

medium
Cost
$0.014
Time
14.6s
Tokens
2,362 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 0423 7.8 10.0 66.7% 0 50.60s 7,279 395 34,862
GPT-5.6 Luna 5.4 7.2 44.4% 1 10.38s 7,302 564 9,928

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