Doubao-Seed-1.8: API pricing, providers and specs
Doubao-Seed-1.8 is a text model by ByteDance. 9 providers serve it, from $0.28 to $2 /1M; the lowest price is at ZenMux.
How Doubao-Seed-1.8 compares
Against the 737 text models on the site priced the same way.
- Cheap for its class: at $0.28 /1M, its lowest price undercuts 78% of comparable models (median $1.10).
- Its 256K-token context window is larger than 38% of them (median 262K), about 380 pages of text.
- 9 providers serve it; 75% of comparable models have fewer.
Doubao-Seed-1.8 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| ZenMux | $0.11/1M | From$0.28/1M | $0.023/1M | 256K |
 CometAPI | $0.20/1M | $1.60/1M | — | — |
| Vercel AI Gateway | $0.25/1M | $2/1M | $0.05/1M | 256K |
| DevPass (LLM Gateway) | $0.25/1M | From$2/1M | $0.05/1M | — |
 Deep Infra | $0.25/1M | $2/1M | $0.05/1M | — |
 APIYI | $0.25/1M | $2/1M | — | — |
| Atlas Cloud | $0.25/1M | $2/1M | $0.05/1M | — |
 Requesty | $0.25/1M | From$2/1M | $0.05/1M | 256K |
| AI/ML API | $0.25/1M | $2/1M | — | — |
- ZenMuxFrom$0.28
- CometAPI$1.60
- Vercel AI Gateway$2
- Deep Infra$2
- APIYI$2
- Atlas Cloud$2
- AI/ML API$2
- DevPass (LLM Gateway)From$2
- RequestyFrom$2
Specs
- Type
- Text
- Maker
- ByteDance
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 256K≈ 380 pages of text
- Max output
- 64K
- Capabilities
- Prompt caching, Reasoning, Tool calling, Vision
- Released
- Sep 1, 2025
- License
- —
- Open weights
- —
Alternatives to Doubao-Seed-1.8
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Doubao-Seed-1.8this model | $0.28/1M | 256K | — | 9 |
 GLM-5.3-Flash | $0.20/1M | 1.05M | 1608 | 45 |
 Qwen3.8 27B | $0.50/1M | 262K | 1591 | 33 |
| GPT-6 Luna | $0.40/1M | 1.05M | 1578 | 28 |
| Claude Haiku 5.5 | $0.30/1M | 1M | 1585 | 27 |
 MiMo-V2.6-Pro | $0.696/1M | 1.05M | 1625 | 21 |
| Qwen3.8 Flash Next | $0.376/1M | 262K | 1628 | 5 |
 DeepSeek V4 Flash | $0.17/1M | 1.05M | — | 26 |
| DeepSeek V4 Flash Vision Exp | $0.294/1M | 1.05M | — | 26 |
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The lowest price for Doubao-Seed-1.8 is $0.28 /1M, at ZenMux.
ZenMux, at $0.28 /1M. 9 providers serve Doubao-Seed-1.8; the table above lists every one with its price.
Doubao-Seed-1.8 reads up to 256K tokens per request and writes up to 64K.
We have not found Doubao-Seed-1.8's weights published by its maker.
9 API providers serve Doubao-Seed-1.8. Compare their prices above, or open a provider to see everything it offers.
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