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Seed 2.1 Turbo (medium) vs GPT-6 Luna (high)

Seed 2.1 Turbo (medium) leads on average score with 8.4 vs 8.3. GPT-6 Luna (high) has the lower benchmark cost at $0.054 vs $1.951. GPT-6 Luna (high) is faster at 17.53s vs 193.59s, with pass rates of 78.8% vs 75.8%.

Last updated at: 2026-09-23

Compared models

Rank
#67
Total Output Tokens
759,191
Response Time (avg)
193.59s
Total Cost
$1.951
Rank
#73
Total Output Tokens
91,405
Response Time (avg)
17.53s
Total Cost
$0.054
Recommended model GPT-6 Luna (high)

Its score stays close to the best score here (8.3 vs 8.4), while costing about 36.3x less than Seed 2.1 Turbo (medium).

Detailed comparison

Metric Seed 2.1 Turbo Seed 2.1 Turbo medium Release: 2026-08-12 GPT-6 Luna GPT-6 Luna high Release: 2026-09-23
Score 8.4 8.3
Rank #67 #73
Reliability 10.0 10.0
Consistency 8.2 9.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 75.8%
Flaky tests 5 3
Total Runs 66 66
Cost per result 13.002 0.359
Total Cost $1.951 $0.054
Input Price $0.500 / 1M $0.100 / 1M
Output Price $2.500 / 1M $0.500 / 1M
Total Input Tokens 104,433 80,441
Output Tokens 6,511 4,761
Reasoning Tokens 752,680 86,644
Response Time (avg) 193.59s 17.53s
Response Time (max) 885.33s 106.93s
Response Time (total) 4258.98s 385.74s
Parameters ~200B total (~20B active) ~400B total (~17B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#67 Seed 2.1 Turbo

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

#73 GPT-6 Luna

high
Cost
$0.003
Time
49.2s
Tokens
5,231 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-6 Luna 7.8 7.4 77.8% 1 24.69s 7,302 483 15,691

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