Doubao Seed Code
Doubao Seed Code is an API model from ByteDance. It’s positioned for general text tasks—work that benefits from iteration, not just one-shot answers.
Context
256K
Up to 256,000 tokens
Core Capabilities
Coding
Strong real-world software engineering.
Long Documents
Handles entire codebases, books, and multi-doc RAG.
Context Window
256k tokens
≈ 197+ pages
4k Chat 聊天
32k Long docs 长文档
128k Books 整本书
400k Multi-doc 多文档
1M Codebase 整个代码库
10M
256k
Availability
API
Available
Product / App
Not available
Open Source
Not released
Enterprise
Contact sales
Pricing Model
Pay per token
Input and output billed separately.
Pay-per-token Capability / Performance
Where this model sits relative to the middle 60% of models in the tree. All scores are 0–10 (higher is better).
Lower 20% Upper 80% This model
Context / memory
Context window size · log-scaled
6.0
9.0
7.0
Lower 20% 20th percentile — 20% of models score below this This model Where the current model lands Upper 80% 80th percentile — only 20% of models score above this
Percentile boundaries are computed across every model in the tree that reports the underlying benchmark for each capability.
What it feels like
- Matches GPT-4o and Claude 3.5 Sonnet on benchmarks at ~50x cheaper price — the headline claim
- Deep Thinking mode beats OpenAI o1-preview and o1 on AIME
- Outperformed DeepSeek-V3, GPT-4o, and Llama 3-405B on MMLU-Pro and GPQA
Best use cases
- Cost-sensitive bulk inference at frontier-tier quality (5x cheaper than DeepSeek)
- Chinese-language production deployments via the Doubao consumer app
- Long-doc workflows leveraging the 256K context
Tools to try
Not ideal for
- Self-hosted / open-weights deployments — closed API only
- Workflows where regulatory restrictions on Chinese-cloud apply