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Seed 2.1 Turbo (medium) vs GPT-5.4 (medium)

GPT-5.4 (medium) leads on average score with 8.5 vs 8.4. GPT-5.4 (medium) has the lower benchmark cost at $1.533 vs $1.969. GPT-5.4 (medium) is faster at 23.10s vs 197.04s, with pass rates of 78.8% vs 77.3%.

Last updated at: 2026-08-12

Rank
#37
Total Output Tokens
766,465
Response Time (avg)
197.04s
Total Cost
$1.969
Rank
#32
Total Output Tokens
88,670
Response Time (avg)
23.10s
Total Cost
$1.533
Recommended model GPT-5.4 (medium)

It has the best score here (8.5), while responding about 8.5x faster than Seed 2.1 Turbo (medium).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo medium Release: 2026-08-12 GPT-5.4 GPT-5.4 medium Release: 2026-03-05
Score 8.4 8.5
Rank #37 #32
Reliability 9.9 10.0
Consistency 8.2 8.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 77.3%
Flaky tests 5 4
Total Runs 66 66
Cost per result 13.123 10.220
Total Cost $1.969 $1.533
Input Price $0.500 / 1M $2.500 / 1M
Output Price $2.500 / 1M $15.000 / 1M
Total Input Tokens 104,424 81,127
Output Tokens 6,510 6,155
Reasoning Tokens 759,955 82,515
Response Time (avg) 197.04s 23.10s
Response Time (max) 885.33s 100.41s
Response Time (total) 4334.80s 508.26s
Parameters ~200B total (~20B active) ~1.5T total (~100B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#37 Seed 2.1 Turbo

medium
Cost
$0.099
Time
583.9s
Tokens
39,514 tok

#32 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
Seed 2.1 Turbo 8.2 7.2 88.9% 1 354.87s 8,220 384 205,892
GPT-5.4 8.8 7.8 88.9% 1 44.36s 7,305 433 24,216

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