GPT-5.1vsSeed 2.0 Code
Seed 2.0 Code is cheaper than GPT-5.1 at $0.5/M vs $1.25/M input tokens.
| Spec | GPT-5.1 | Seed 2.0 Code |
|---|---|---|
| Input price | $1.25/M tokens | $0.5/M tokens |
| Output price | $10/M tokens | $3/M tokens |
| Context window | 400K tokens | 262K tokens |
| Released | Nov 2025 | Aug 2026 |
Our Verdict
GPT-5.1
Seed 2.0 CodeRunner-up
Not enough votes to call it. On the specs, GPT-5.1 has the edge: bigger model tier, bigger context window, major provider backing.
Seed 2.0 Code costs 3.3x less per token.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1
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
38%
Seed 2.0 Code uses 2.7x more headings
GPT-5.1
Seed 2.0 Code
62%Vocabulary56%
19wSentence Length33w
0.29Hedging0.24
3.5Bold3.1
7.2Lists3.0
0.00Emoji0.00
0.61Headings1.66
0.03Transitions0.03
Based on 14 + 27 text responses
Research
What we learned reading every model
FAQ
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