NanoGPT

ByteDance Seed 2.1 Turbo

Name: ByteDance Seed 2.1 Turbo
Brand: NanoGPT

Canonical ID: nano-gpt/bytedance-seed/seed-2-1-turbo

More NanoGPT models More seed family models

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.

Reasoning: Yes Tool use: Yes

Overview

text image video

Provider: NanoGPT
Family: seed
Release date: 2026-08-12
Last updated: 2026-08-12
Input modalities: text, image, video
Output modalities: text

Pricing and Limits

Token pricing

Input: $0.5/1M
Output: $2.5/1M
Cached input: N/A

Context and output

Context window: 262,144
Max output tokens: 235,929
Qualified ID: nano-gpt/bytedance-seed/seed-2-1-turbo

Model Summary

ByteDance Seed 2.1 Turbo is a model listing in the NanoGPT provider catalog. It is categorized under the seed family.

The model supports text, image, video modalities across input/output paths. Reported context capacity is 262,144. Pricing is listed at $0.5/1M input and $2.5/1M output.

Same Family: seed

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
ByteDance Seed 2.0 Code nano-gpt/bytedance-seed/seed-2.0-code	NanoGPT	262,144	$0.5/1M	$3/1M	Reasoning Tools
ByteDance Seed 2.0 Lite nano-gpt/bytedance-seed/seed-2.0-lite	NanoGPT	262,144	$0.25/1M	$2/1M
ByteDance Seed: Seed 1.6 kilo/bytedance-seed/seed-1.6	Kilo Gateway	262,144	$0.25/1M	$2/1M	Reasoning Tools
ByteDance Seed: Seed 1.6 openrouter/bytedance-seed/seed-1.6	OpenRouter	262,144	$0.25/1M	$2/1M	Tools
ByteDance Seed: Seed 1.6 Flash (retires Nov 11) kilo/bytedance-seed/seed-1.6-flash	Kilo Gateway	262,144	$0.075/1M	$0.3/1M	Reasoning Tools
ByteDance Seed: Seed 2.1 Turbo kilo/bytedance-seed/seed-2-1-turbo	Kilo Gateway	262,144	$0.5/1M	$2.5/1M	Reasoning Tools
ByteDance-Seed/Seed-OSS-36B-Instruct nvidia/bytedance/seed-oss-36b-instruct	Nvidia	262,000	$0/1M	$0/1M	Tools
ByteDance-Seed/Seed-OSS-36B-Instruct siliconflow-cn/ByteDance-Seed/Seed-OSS-36B-Instruct	SiliconFlow (China)	262,000	$0.21/1M	$0.57/1M	Tools
Dola Seed 2.0 Code (preview) merge-gateway/bytedance/dola-seed-2.0-code-preview	Merge Gateway	131,072	$0.5/1M	$3/1M
Doubao Seed 2.0 Code Preview nano-gpt/doubao-seed-2-0-code-preview-260215	NanoGPT	256,000	$0.782/1M	$3.893/1M

ByteDance Seed 2.1 Turbo

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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