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Seed-2.0-Code (high) vs GPT-5.6 Luna (medium)

Seed-2.0-Code (high) leads on average score with 7.5 vs 7.4. GPT-5.6 Luna (medium) has the lower benchmark cost at $0.101 vs $1.448. GPT-5.6 Luna (medium) is faster at 9.64s vs 124.87s, with pass rates of 65.2% vs 62.3%.

Last updated at: 2026-10-01

Compared models

Rank
#121
Total Output Tokens
432,850
Response Time (avg)
124.87s
Total Cost
$1.448
Rank
#122
Total Output Tokens
47,986
Response Time (avg)
9.64s
Total Cost
$0.101
Recommended model GPT-5.6 Luna (medium)

Its score stays close to the best score here (7.4 vs 7.5), while costing about 14.5x less than Seed-2.0-Code (high).

Detailed comparison

Metric Seed-2.0-Code Seed-2.0-Code high Release: 2026-08-12 GPT-5.6 Luna GPT-5.6 Luna medium Release: 2026-07-09
Score 7.5 7.4
Rank #121 #122
Reliability 9.0 10.0
Consistency 7.9 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 65.2% 62.3%
Flaky tests 5 3
Total Runs 69 69
Cost per result 12.061 2.822
Total Cost $1.448 $0.101
Input Price $0.500 / 1M $0.200 / 1M
Output Price $3.000 / 1M $1.200 / 1M
Total Input Tokens 297,321 212,780
Output Tokens 8,997 6,849
Reasoning Tokens 423,853 41,137
Response Time (avg) 124.87s 9.64s
Response Time (max) 675.30s 58.09s
Response Time (total) 2871.96s 221.62s
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.

#121 Seed-2.0-Code

high
Cost
$0.037
Time
183.6s
Tokens
12,388 tok

#122 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
Seed-2.0-Code 6.2 6.5 55.6% 1 266.74s 6,750 432 124,956
GPT-5.6 Luna 5.4 7.2 44.4% 1 10.38s 7,302 564 9,928

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