Doubao Seed 2.1 Pro is ByteDance's language model with a 256K context window, starting at $0.863 / 1M input and $4.31 / 1M output. A large language model from ByteDance's Doubao Seed series, tuned as a Pro-tier variant for general-purpose reasoning and generation tasks.
Specifications
Canonical IDbytedance-doubao-seed-2-1-pro
TypeLanguage
StatusActive
CreatorByteDanceByteDance
Providers
Context Window256K tokens
Input ModalitiesImage
Output ModalitiesText
Reasoning Effortsdefault

Capabilities

Input1/5
Text·
Image✓
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities3/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Volcengine (ByteDance) logo
Volcengine (ByteDance)
volcengine/doubao-seed-2-1-pro-260628
$0.863$4.31$0.172

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Doubao Seed 2.1 Pro—256K$0.863$4.31Current
Doubao Seed 2 Pro—256K$0.482$2.41Available

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Doubao Seed 2 Code Preview——256K$0.482$2.41
Doubao Seed 2 Mini——256K$0.030$0.301
Doubao Seed 2 LiteLite—256K$0.090$0.542
Doubao Seed Code—————

Model IDs

bytedance-doubao-seed-2-1-pro
volcengine/doubao-seed-2-1-pro-260628