ByteDance · MultimodalReleased 2026-06-23

seed-2.1-turbo

bytedance/seed-2.1-turbo id

Seed 2.1 Turbo is ByteDance’s multimodal language model supporting text, image, and video inputs with text output. It offers a 262,144-token context window, reasoning, function calling, and structured JSON output.

ReasoningTool useChat

Type

Use seed-2.1-turbo

# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$ 
$ const { text } = await generateText({
$   model: 'bytedance/seed-2.1-turbo',
$   baseURL: 'https://synapse.garden/api/v1',
$   apiKey: process.env.MG_KEY,
$   prompt: 'Why is the sky blue?',
$ })

262.1K

CONTEXT WINDOW

262.1K

MAX OUTPUT

$0.550/M

INPUT · PER M

$2.75/M

OUTPUT · PER M

PRICING

List prices, every modality.

Rate	Per million tokens · USD
Input	$0.550/M
Output	$2.75/M
Cache read	$0.110/M

Honest list pricesHow we calculate prices

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Model

Input

Output

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FAQ · SEED-2.1-TURBO

Frequently asked

01 / 04

How do I call seed-2.1-turbo from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘bytedance/seed-2.1-turbo’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does seed-2.1-turbo cost?

Input: $0.550/M per million tokens. Output: $2.75/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for seed-2.1-turbo?

seed-2.1-turbo supports a context window of 262.1K tokens, with a maximum output of 262.1K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try seed-2.1-turbo in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.

Start free Quickstart