Seed 2.1 Turbo

Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and video content, with capabilities for planning, debugging, and self-correction.

ChatByteDance262k tokens$0.545 / $2.7251 · 1M

bytedance-seed/seed-2-1-turbo

Context
262k tokens
Completion cap
262,144
Tools
Yes
JSON
Yes
Released
2026-08-12

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2-1-turbo",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is Seed 2.1 Turbo?
Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and video content, with capabilities for planning, debugging, and self-correction. Seed 2.1 Turbo runs on the Geek Hub API (OpenAI-compatible). Model id: bytedance-seed/seed-2-1-turbo.
Is Seed 2.1 Turbo free?
No. Input is $0.545 per 1M tokens and output is $2.7251 per 1M tokens on Geek Hub (markup included).
What is the context length of Seed 2.1 Turbo?
Seed 2.1 Turbo has a 262k tokens context window. It supports up to 262,144 completion tokens.
Does Seed 2.1 Turbo support tool calling and structured outputs?
Seed 2.1 Turbo accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was Seed 2.1 Turbo released?
Seed 2.1 Turbo was released on 2026-08-12.

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