Bytedance Seed model page

ByteDance Seed: Seed 2.1 Turbo

bytedance-seed/seed-2-1-turbo

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...

TextVisionVideoStructured outputTool callingFast responses
Input / 1M
$0.65
Output / 1M
$3.25
Context
262K
Markup
30%

Use this model through UAI

A dedicated public landing page for this synced catalog row.

Provider
Bytedance Seed

Synced from the active catalog

Context window
262K tokens

Validated for gateway requests

UAI input
$0.65

Charged from your UAI balance

UAI output
$3.25

Same API key and billing flow

This page exists for direct linking, onboarding, and SEO. The same model row powers /v1/models, the public catalog, the app pricing screen, and request validation for /v1/chat/completions.

Why use this model through UAI

The same model route, but with one account, one balance, and one API shape.

Multimodal prompts

The synced capabilities for this row indicate image or vision support, so you can route multimodal requests through the same UAI account and billing flow.

Interactive latency

ByteDance Seed: Seed 2.1 Turbo is positioned well for chat UIs, demos, and agent loops where faster turn time matters.

Agent integrations

Tool and function-style parameters stay available through the same UAI request surface, so agent stacks do not need a separate provider integration.

Pricing and access

Current synced numbers for this exact model row.

UAI input / 1M tokens
$0.65
UAI output / 1M tokens
$3.25
Bytedance Seed input / 1M
$0.50
Bytedance Seed output / 1M
$2.50
Context window
262,144
Current markup
30%

Need another option? Browse the full models catalog or compare rows in the signed-in pricing table.

Quickstart

Use this model with your UAI key over the standard OpenAI-compatible route.

Create a key in API Keys, then send requests to https://uai.sh/v1/chat/completions.

curl
curl https://uai.sh/v1/chat/completions \
  -H "Authorization: Bearer uai-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2-1-turbo",
    "messages": [{"role": "user", "content": "Say hi in one short sentence."}],
    "stream": false
  }'
Python (OpenAI SDK)
from openai import OpenAI

client = OpenAI(base_url="https://uai.sh/v1", api_key="uai-YOUR_API_KEY")
response = client.chat.completions.create(
    model="bytedance-seed/seed-2-1-turbo",
    messages=[{"role": "user", "content": "Say hi in one short sentence."}],
    stream=False
)
print(response.choices[0].message.content)
Node.js (OpenAI SDK)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://uai.sh/v1",
  apiKey: "uai-YOUR_API_KEY"
});

const response = await client.chat.completions.create({
  model: "bytedance-seed/seed-2-1-turbo",
  messages: [{ role: "user", content: "Say hi in one short sentence." }],
  stream: false
});

console.log(response.choices[0].message.content);

Related models

Other active rows to compare without leaving the public catalog.

bytedance-seed
ByteDance Seed: Seed-2.0-Code
bytedance-seed/seed-2.0-code
Input / 1M$0.65
Context262K tokens
google
Google: Nano Banana 2 (Gemini 3.1 Flash Image)
google/gemini-3.1-flash-image
Input / 1M$0.65
Context131K tokens
thinkingmachines
Thinking Machines: Inkling Small (batch)
thinkingmachines/inkling-small:batch
Input / 1M$0.65
Context524K tokens