Model prices / ByteDance Seed / Seed 2.1 Pro
Seed 2.1 Pro
ByteDance Seed · released 2026-06-23
No price from the maker itself is on record for Seed 2.1 Pro. The lowest of 2 providers is Ofox: $0.7072 per 1M input tokens and $3.536 per 1M output tokens (as of 2026-11-12). Context window: 256K tokens, up to 256K output tokens per request.
Price by providerUSD per 1M tokens
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
OOfoxLowestvolcengine/ | $0.7072 | $3.536 | $0.1416 | Lowest | Official docs |
 Volcengine Arkdoubao-seed-2-1-pro-260628 | $0.8906 | $4.45301 | $0.17812 | Official docs |
Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.
About
Flagship ByteDance Seed 2.1 model for complex multimodal reasoning, coding, and agents
Description from models.dev.
Specs
- Type
- Text
- Context
- 256K
- Max output
- 256K
- Input
- Text, Image, Video
- Output
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- Knowledge cutoff
- —
- Open weights
- No
- Released
- 2026-06-23
Source
Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.