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ByteDance Doubao

Doubao 1.5 Pro

bytedance/doubao-1.5-pro
Language

The 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

Pricing for Doubao 1.5 Pro, per 1M tokens
RatePriceUnit
Input— quoted on request—
Output— quoted on request—

Prompt caching is supported, so repeated prefixes bill below the listed input rate. This model is not provisioned yet; the rate is quoted on request.

Context window

256Ktokens

covers prompt and response together, so a long input leaves less room for the answer.

256K tokens against a peer range of 32K to 10M, median 256K. Compared across 34 language models. Logarithmic scale.

Supported features

Feature support for Doubao 1.5 Pro
FeatureSupport
Tool callingSupported
JSON modeSupported
StreamingSupported
Vision inputNot supported
Audio inputNot supported
Long contextNot supported
Open weightsNot supported
ReasoningNot supported
Fine-tunableNot supported
BatchNot supported
CachingSupported

Example use cases

  • High-volume consumer features

  • Cost-sensitive assistants

  • Bulk processing

Related models

Comparison

Compare against anything →
Doubao 1.5 Pro compared with DeepSeek V3.2 and GPT-5.1 Mini
AttributeDoubao 1.5 ProDeepSeek V3.2GPT-5.1 Mini
Context window256K128K400K
Input priceR0.00R0.00R0.00
Output price— not charged— not charged— not charged
Tool callingSupportedSupportedSupported
JSON modeSupportedSupportedSupported
Vision inputNot supportedNot supportedSupported
Open weightsNot supportedSupportedNot supported
Prompt cachingSupportedSupportedSupported

Best value in each row is highlighted. Blank cells are facts the supplier does not publish, not zeroes.

Provider information

View ByteDance Doubao →
ByteDance Doubao4 models

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 R0.00 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.