# Seed 2.1 Turbo: AI model fact sheet

- **Provider:** bytedance
- **Released:** 2026-08-12
- **Context window:** 262,144 tokens
- **API pricing:** $0.50 / 1M input, $2.50 / 1M output
- **OpenRouter ID:** bytedance-seed/seed-2-1-turbo
- **Capabilities:** conversation, reasoning, code-generation, analysis, planning, agentic-tool-use

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.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/seed-2.1-turbo