GPT-5 vs Seed 2.0 Code
Compare GPT-5 by OpenAI against Seed 2.0 Code by ByteDance, context windows of 400K vs 262K, tested across 51 shared challenges.
Our Verdict
GPT-5
Seed 2.0 CodeRunner-up
No community votes yet. On paper, GPT-5 has the edge — bigger model tier, bigger context window, major provider backing.
Seed 2.0 Code is 3.3x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5
Input
$1.25
Output
$10.00
Seed 2.0 Code
Input
$0.50
2.5× cheaper
Output
$3.00
3.3× cheaper
Seed 2.0 Code is cheaper on both — 2.5× input, 3.3× output
Writing DNA
Style Comparison
Similarity
55%
Seed 2.0 Code uses 16.3x more bold
GPT-5
Seed 2.0 Code
65%Vocabulary56%
13wSentence Length33w
0.20Hedging0.24
0.2Bold3.1
4.6Lists3.0
0.00Emoji0.00
0.16Headings1.66
0.03Transitions0.03
Based on 16 + 27 text responses
Research
What we learned reading every model
FAQ
