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

DeepSeek V4 Flash 0423 (high) leads on average score with 8.1 vs 8.0. GPT-5.6 Luna (high) has the lower benchmark cost at $0.118 vs $0.261. GPT-5.6 Luna (high) is faster at 18.39s vs 55.99s, with pass rates of 71.0% vs 71.0%.

Last updated at: 2026-10-19

Compared models

Rank
#108
Total Output Tokens
203,134
Response Time (avg)
55.99s
Total Cost
$0.261
Rank
#110
Total Output Tokens
139,395
Response Time (avg)
18.39s
Total Cost
$0.118
Recommended model GPT-5.6 Luna (high)

Its score stays close to the best score here (8.0 vs 8.1), while costing about 2.2x less 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 high Release: 2026-07-09
Score 8.1 8.0
Rank #108 #110
Reliability 10.0 10.0
Consistency 8.6 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 71.0% 71.0%
Flaky tests 4 4
Total Runs 69 69
Cost per result 0.547 5.882
Total Cost $0.261 $0.118
Input Price $0.002 / 1M $0.200 / 1M
Output Price $1.280 / 1M $1.200 / 1M
Cache Read Price $0.002 / 1M $0.020 / 1M
Cache Write Price N/A $0.250 / 1M
Total Input Tokens 298,794 197,896
Output Tokens 45,873 6,211
Reasoning Tokens 188,721 133,184
Response Time (avg) 55.99s 18.39s
Response Time (max) 218.13s 111.09s
Response Time (total) 1287.87s 422.93s
Parameters 284B total (13B active) ~400B total (~17B active)
Availability Open source Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#108 DeepSeek V4 Flash 0423

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

#110 GPT-5.6 Luna

high
Cost
$0.033
Time
34.2s
Tokens
5,484 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 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746

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