---
name: Bytedance Seed 2.1 Turbo
slug: seed-2-1
type: Multimodal
providers:
  - venice
  - nano-gpt
  - openrouter
description: >-
  ByteDance Seed 2.1 Turbo is a multimodal model for coding and long-horizon
  agent workflows, including end-to-end software delivery and multi-step task
  execution. It supports text, image, and video input with a 262k context
  window.
tags:
  - reasoning
  - seed
  - multimodal
  - tool-use
is_open_source: false
context_window: 262144
max_output: 262144
pricing:
  - image: 0
    input: 0.5
    output: 2.5
    provider: nano-gpt
  - image: 0
    input: 0.5
    output: 2.5
    provider: openrouter
  - image: 0
    input: 0.625
    output: 3.125
    provider: venice
release_date: '2026-08-12'
openrouter_id: bytedance-seed/seed-2-1-turbo
capabilities:
  audio: false
  vision: true
  tool_use: true
  citations: false
  reasoning: true
---
Bytedance Seed 2.1 Turbo is a Multimodal model.
ByteDance Seed 2.1 Turbo is a multimodal model for coding and long-horizon agent workflows, including end-to-end software delivery and multi-step task execution. It supports text, image, and video input with a 262k context window.