How do I use Seed 2.0 Lite through YepAPI?

Sign up for a free API key, then send requests to the /v1/ai/chat endpoint.

ByteDanceText Generation/v1/ai/chat

Seed 2.0 Lite

Access Seed 2.0 Lite through one API key. ByteDance's latest bilingual model.

ByteDance's latest model. Strong bilingual performance with 131K output and competitive pricing.

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2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Send a message and see Seed 2.0 Lite respond in real time.

POST/v1/ai/chatbytedance-seed/seed-2.0-lite

Message *

Max Tokens

Maximum tokens in the response.

Stream

Real-time tokens

Hit "Send Request" to see the response

Context Window

262K tokens

Max Output

131K tokens

Input Price

$0.37 / 1M tokens

Output Price

$2.95 / 1M tokens

Strengths

✓

ByteDance flagship

Seed 2.0 Lite is ByteDance's latest model, carrying current-generation quality from the Seed research line.

✓

131K output

A 131,072-token maximum output lets Seed 2.0 Lite generate very long documents and reports in a single response.

✓

Bilingual CN/EN

Built by ByteDance, it delivers strong Chinese and English performance for cross-language reasoning and content.

✓

262K context

A 262,144-token context window holds large inputs alongside its long outputs, supporting full long-document workflows.

Quick start

Copy this snippet and start making calls with Seed 2.0 Lite.

const res = await fetch('https://api.yepapi.com/v1/ai/chat', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "bytedance-seed/seed-2.0-lite",
    "messages": [
      {
        "role": "user",
        "content": "Explain API gateways in 2 sentences."
      }
    ],
    "maxTokens": 256
  }),
});
const { data } = await res.json();
console.log(data.message.content);

Why use Seed 2.0 Lite through YepAPI?

✓One API key for all models — no separate accounts

✓OpenAI SDK compatible — just change the base URL

✓No monthly minimums — pay per token

✓Switch models with one line of code

✓Full provider passthrough — citations, search results, and all extras included

✓Streaming and non-streaming support on every model

✓Works with Cursor, Claude, LangChain, and any LLM tool

✓Unified billing across all providers

Seed 2.0 Lite API: ByteDance's latest bilingual model

Seed 2.0 Lite is ByteDance's newest Seed model, combining strong bilingual Chinese-English performance with a 131,072-token output ceiling and 262K context.

On YepAPI you call Seed 2.0 Lite through one OpenAI-compatible endpoint at $0.37 per 1M input and $2.95 per 1M output tokens, with a 262,144-token context window.

What is Seed 2.0 Lite?

Seed 2.0 Lite is the latest model in ByteDance's Seed research line, the lab inside the company behind TikTok and Douyin. It offers strong bilingual Chinese-English performance and is built for current-generation reasoning and generation. The model carries a 262,144-token context window and a large 131,072-token output ceiling, so it can both read large inputs and produce long, complete responses in one pass. Despite the Lite name it is positioned as ByteDance's flagship Seed offering at competitive pricing, making it a capable general-purpose bilingual model for teams that want quality across both languages without premium frontier costs.

Build with Seed 2.0 Lite via YepAPI

Call Seed 2.0 Lite through YepAPI's OpenAI-compatible /v1/ai/chat endpoint. Point your OpenAI SDK at YepAPI and set the model string to seed; switching to another model later is a one-string edit. A single YepAPI key also reaches every other model plus SEO, SERP, and web-scraping tools, so you can gather bilingual source content and have Seed 2.0 Lite reason over it or draft long outputs within one integration and one bill.

Seed 2.0 Lite API pricing — $0.37 / $2.95 per 1M tokens

Seed 2.0 Lite costs $0.37 per 1M input tokens and $2.95 per 1M output tokens on YepAPI. The low input rate makes feeding its large 262K context affordable, while the output rate covers its 131K-token long-form generation capability. For bilingual workloads that combine big inputs with long outputs, the pricing keeps a current-generation flagship within reach for sustained use.

Seed 2.0 Lite for bilingual long-document work

Seed 2.0 Lite suits bilingual tasks that pair large inputs with long outputs: summarizing or analyzing big document sets, drafting full reports in Chinese or English, and producing detailed technical content. The 131,072-token output ceiling lets it finish long documents in one response, and the 262K context keeps extensive source material in view. When you need ByteDance's current bilingual quality across long-document workflows, Seed 2.0 Lite is a strong fit.

Try Seed 2.0 Lite free

New YepAPI accounts get $5 in free credit with no card required. Use it to test Seed 2.0 Lite on your bilingual long-document tasks and compare its quality and cost against other models before committing.