How do I use Seed 1.6 through YepAPI?

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

ByteDanceText Generation/v1/ai/chat

Seed 1.6

Access Seed 1.6 through one API key. Reliable model from ByteDance.

ByteDance's previous generation model. Proven reliability for general tasks at a low price.

Full Docs Get API Key — Free $5 Credit

No credit card required. Takes 30 seconds.

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 1.6 respond in real time.

POST/v1/ai/chatbytedance-seed/seed-1.6

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

33K tokens

Input Price

$0.37 / 1M tokens

Output Price

$2.95 / 1M tokens

Strengths

✓

Proven reliability

Seed 1.6 is ByteDance's previous-generation model with an established track record, a dependable choice for general production tasks.

✓

Low cost

At $0.37 per 1M input and $2.95 per 1M output tokens, it offers solid general-purpose quality at a budget-friendly price.

✓

262K context

A 262,144-token context window lets it process large documents and codebases in one request, with up to 32,768 output tokens.

✓

General purpose

Balanced tuning makes Seed 1.6 a versatile default for everyday reasoning, coding, and writing across English and Chinese.

Quick start

Copy this snippet and start making calls with Seed 1.6.

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-1.6",
    "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 1.6 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 1.6 API: reliable general-purpose model from ByteDance

Seed 1.6 is ByteDance's proven previous-generation Seed model, a dependable general-purpose option with a 262K context window at a low price.

On YepAPI you call Seed 1.6 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 1.6?

Seed 1.6 is the previous generation in ByteDance's Seed model line, succeeded by the Seed 2.0 series. Its appeal is maturity: it has an established track record for general-purpose work, which makes it a low-risk choice for teams that value proven, predictable behavior over the newest capabilities. The model carries a 262,144-token context window and up to 32,768 output tokens, so it handles large inputs comfortably. It performs reliably across reasoning, coding, and writing in both English and Chinese, and its low pricing makes it a sensible default for production systems that prioritize stability and cost over cutting-edge benchmarks.

Build with Seed 1.6 via YepAPI

Call Seed 1.6 through YepAPI's OpenAI-compatible /v1/ai/chat endpoint. Point your OpenAI SDK at YepAPI and set the model string to seed-1.6; upgrading to a Seed 2.0 model or any other 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 build data pipelines that scrape sources and process them with Seed 1.6 within one integration and one bill.

Seed 1.6 API pricing — $0.37 / $2.95 per 1M tokens

Seed 1.6 costs $0.37 per 1M input tokens and $2.95 per 1M output tokens on YepAPI. The low input rate makes its 262K context affordable to use fully, and the overall pricing keeps a proven general-purpose model economical for steady production traffic. Because your key spans the whole catalog, you can keep stable workloads on Seed 1.6 and trial the newer Seed 2.0 models on the same account when you are ready to upgrade.

Seed 1.6 for dependable general-purpose tasks

Seed 1.6 fits production systems that value reliability: building data pipelines, generating code, summarizing documents, and powering general assistants where predictable behavior matters more than chasing the latest benchmarks. The 262K context handles large inputs like full datasets or codebases, and the proven track record reduces the risk of surprises in long-running deployments. When stability and cost outweigh novelty, Seed 1.6 is a solid choice.

Try Seed 1.6 free

New YepAPI accounts get $5 in free credit with no card required. Use it to test Seed 1.6 on your general-purpose workloads and compare its reliability and cost against the newer Seed 2.0 models before deciding.