Seed 1.8
doubao-seed-1-8-251228
ByteDance Seed model for multimodal reasoning, long-context analysis, and agent workflows
Specification
most-agreed values
Context
256K
Max output
64K
Released
2025-12-28
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · most-agreed
Input
$0.1187
Output
$1.1875
Cache read
$0.0238
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| volcengine | $0.1187 | $1.1875 | $0.0238 | — | 256K | 64K | — |
Other listings of this model
this page is one of them
The corpus files Seed 1.8 under several keys. This page is the doubao-seed-1-8-251228 listing. The full record — every host, every price and every benchmark score — is on the main Seed 1.8 page.