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DeepSeek V4.1 Flash (low) vs GPT-5.4 (medium)

GPT-5.4 (medium) leads on average score with 8.5 vs 8.5. DeepSeek V4.1 Flash (low) has the lower benchmark cost at $0.224 vs $1.560. GPT-5.4 (medium) is faster at 22.85s vs 26.77s, with pass rates of 74.2% vs 77.3%.

Last updated at: 2026-09-10

Compared models

Rank
#51
Total Output Tokens
347,963
Response Time (avg)
26.77s
Total Cost
$0.224
Rank
#50
Total Output Tokens
90,466
Response Time (avg)
22.85s
Total Cost
$1.560
Recommended model DeepSeek V4.1 Flash (low)

Its score stays close to the best score here (8.5 vs 8.5), while costing about 7.0x less than GPT-5.4 (medium).

Detailed comparison

Metric DeepSeek V4.1 Flash DeepSeek V4.1 Flash low Release: 2026-09-10 GPT-5.4 GPT-5.4 medium Release: 2026-03-05
Score 8.5 8.5
Rank #51 #50
Reliability 9.5 10.0
Consistency 8.9 8.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 74.2% 77.3%
Flaky tests 3 4
Total Runs 66 66
Cost per result 1.492 10.399
Total Cost $0.224 $1.560
Input Price $0.150 / 1M $2.500 / 1M
Output Price $0.600 / 1M $15.000 / 1M
Total Input Tokens 99,715 81,136
Output Tokens 6,381 6,155
Reasoning Tokens 341,582 84,311
Response Time (avg) 26.77s 22.85s
Response Time (max) 149.84s 100.41s
Response Time (total) 589.01s 502.78s
Parameters 748B total (16B active) ~1.5T total (~100B active)
Availability Open source Closed

Model generation showcase

Hamster playing table tennis

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

#51 DeepSeek V4.1 Flash

low
Cost
$0.017
Time
43.6s
Tokens
14,069 tok

#50 GPT-5.4

medium
Cost
$0.214
Time
199.6s
Tokens
14,349 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 V4.1 Flash 10.0 10.0 100.0% 0 40.66s 7,509 378 81,978
GPT-5.4 8.8 7.8 88.9% 1 44.36s 7,305 433 24,216

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