Doubao 1.5 Pro
bytedance/doubao-1.5-proThe price-performance outlier: flagship-adjacent quality at the lowest big-model prices in the catalogue.
Model overview
Context window
256K
tokens
Input price
—
quoted on request
Output price
—
quoted on request
Weekly volume
—
tokens / week
Open weights
No
API only
Capabilities
4
of 11 tags
Description
Doubao 1.5 Pro is a language model from ByteDance Doubao. Webparam does not stock this model yet and can source it on request — tell us what you need it for and we will come back with availability and a price. ByteDance Doubao’s stated focus is consumer-scale LLMs and generative video. The weights are not published, so it is API-only.
Capabilities
- Tool calling
- Calls functions you define and returns their arguments as structured data, the basis of agents.
- JSON mode
- Constrains the response to valid JSON matching a schema you supply.
- Streaming
- Emits tokens as they are generated, so answers appear progressively rather than all at once.
- Caching
- Reuses already-processed prompt prefixes across requests, cutting input cost for repeated context.
Strengths & weaknesses
Strengths
- Exceptional price-performance
- Fast responses
- Consumer-scale reliability
Weaknesses
- Closed weights
- International availability considerations
Pricing
Free| Rate | Price | Unit |
|---|---|---|
| Input | $0.00 | per 1M tokens |
| Output | — not charged | — |
Prompt caching is supported, so repeated prefixes bill below the listed input rate. Free at the point of use; fair-use rate limits apply to the free tier. Illustrative placeholder pricing.
Context window
256Ktokens
covers prompt and response together, so a long input leaves less room for the answer.
Supported features
| Feature | Support |
|---|---|
| Tool calling | Supported |
| JSON mode | Supported |
| Streaming | Supported |
| Vision input | Not supported |
| Audio input | Not supported |
| Long context | Not supported |
| Open weights | Not supported |
| Reasoning | Not supported |
| Fine-tunable | Not supported |
| Batch | Not supported |
| Caching | Supported |
Example use cases
High-volume consumer features
Exceptional price-performance
Cost-sensitive assistants
Fast responses
Bulk processing
Consumer-scale reliability
Comparison
| Attribute | Doubao 1.5 Pro | DeepSeek V3.2 | GPT-5.1 Mini |
|---|---|---|---|
| Context window | 256K | 128K | 400K |
| Input price | $0.00 | $0.00 | $0.00 |
| Output price | — not charged | — not charged | — not charged |
| Tool calling | Supported | Supported | Supported |
| JSON mode | Supported | Supported | Supported |
| Vision input | Not supported | Not supported | Supported |
| Open weights | Not supported | Supported | Not supported |
| Prompt caching | Supported | Supported | Supported |
Best value in each row is highlighted. Illustrative placeholder data.
Provider information
View ByteDance Doubao →ByteDance Doubao · 豆包 · Beijing, China · est. 2023 (Model lab; parent ByteDance founded 2012)
Doubao is ByteDance's model family, priced aggressively enough to reset the Chinese market and deployed across products with hundreds of millions of users. Its Seedance video and Seedream image lines translate TikTok-era creative expertise into generative models with striking motion quality.
Recent releases
Documentation
Frequently asked questions
Input is billed at $0.00 per 1M tokens, and there is no separate output charge. Prompt caching bills repeated prefixes below the listed input rate. Every figure on this page is an illustrative placeholder.