What is Seed-2.0-Code API?
ByteDance Seed-2.0-Code is optimized for agentic coding — frontend development, multilingual programming tasks and coding-agent workflows — with a 256K context window, multimodal (text/image/video) input and selectable reasoning effort.
Technical Specifications
- Context window: 262,144 tokens
- Max output: 131,072 tokens
- Supported inputs: Image, Text
- Output: Text
Seed-2.0-Code API Pricing
- Input: $0.65 / 1M tokens
- Output: $3.9 / 1M tokens
Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.
Seed-2.0-Code is documented as suited for frontend development, especially when building or iterating on user interfaces. It is also suited for multilingual programming tasks, making it a fit for code work across different programming languages.
The model is documented for coding-agent workflows, where it can help with multi-step software tasks in tools and IDEs designed for agentic coding. It is also described as useful for bug diagnosis and repair, including tracing defects and proposing fixes across files.
import requests r = requests.post( "https://api.aimlapi.com/v1/chat/completions", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "bytedance-seed/seed-2.0-code", "messages": [ { "role": "user", "content": "Hello!" } ] }, ) print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", { method: "POST", headers: { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ "model": "bytedance-seed/seed-2.0-code", "messages": [ { "role": "user", "content": "Hello!" } ] }), }); console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"bytedance-seed/seed-2.0-code","messages":[{"role":"user","content":"Hello!"}]}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Input | |
| Output | |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
Seed 2.0 Code This page | Agentic frontend & coding workflows | |||
| Reasoning + agents | ||||
| Frontier reasoning + agents | ||||
| Reasoning + agents with long context | ||||
| Long-horizon coding agents |
Seed 2.0 Code has a 262,144 tokens context window and can return up to 131,072 tokens.
Seed 2.0 Code takes image, text as input and returns text.
Use bytedance-seed/seed-2.0-code as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
Seed 2.0 Code became available on July 30, 2026.
Seed 2.0 Code is priced at input $0.6877 / 1M tokens, output $4.1262 / 1M tokens.
Yes, Seed 2.0 Code can stream responses as they are generated.
Yes, Seed 2.0 Code accepts image input alongside text.
Seed 2.0 Code was built by ByteDance.
It is built for agentic coding tasks such as frontend development, multilingual programming, and coding-agent workflows.
Yes, it supports parallel tool calls and function calling.
