NanoGPTByteDance Seed 2.1 Turbo model ID, context window & pricing
seed
Quick facts
Model ID bytedance-seed/seed-2-1-turbo
Source NanoGPT
Context Window 262144
Pricing $0.50 input / $2.50 output per 1M tokens
Capabilities tool calling, reasoning, structured output
Model overview
ByteDance Seed 2.1 Turbo is an AI model from NanoGPT with 262144 token context window and text, image, video input support.
Published pricing is $0.50 input and $2.50 output per 1M tokens.
- Workloads that use text, image, video inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID bytedance-seed/seed-2-1-turbo
Provider NanoGPT
Family seed
Status -
Knowledge Cutoff -
Release Date 2026-08-12
Input Modalities text, image, video
Output Modalities text
Context Window 262144
Input Limit 262144
Output Limit 262144
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control -
Open Weights No
Input Cost / 1M tokens $0.50
Output Cost / 1M tokens $2.50
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.25
Cache Write Cost / 1M tokens -