ByteDance Seed: Seed 1.6
bytedance-seed/seed-1.6
Access Seed 1.6 from ByteDance Seed using Puter.js AI API.
Get Started// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "bytedance-seed/seed-1.6"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "bytedance-seed/seed-1.6"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://api.puter.com/puterai/openai/v1/",
api_key="YOUR_PUTER_AUTH_TOKEN",
)
response = client.chat.completions.create(
model="bytedance-seed/seed-1.6",
messages=[
{"role": "user", "content": "Explain quantum computing in simple terms"}
],
)
print(response.choices[0].message.content)
curl https://api.puter.com/puterai/openai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
-d '{
"model": "bytedance-seed/seed-1.6",
"messages": [
{"role": "user", "content": "Explain quantum computing in simple terms"}
]
}'
Model Card
Seed 1.6 is a general-purpose multimodal AI model by ByteDance featuring adaptive deep thinking, a 256K context window, and a sparse Mixture-of-Experts architecture with 230B total parameters (23B active per forward pass).
Context Window 262K
tokens
Max Output 33K
tokens
Input Cost $0.25
per million tokens
Output Cost $2
per million tokens
Release Date Dec 23, 2025
Model Playground
Try Seed 1.6 instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
More AI Models From ByteDance Seed
Find other ByteDance Seed models →
Seed 2.0 Lite
Seed 2.0 Lite is ByteDance's mid-tier general-purpose LLM that balances strong performance with cost efficiency, scoring 93 on AIME 2025 and 2233 on Codeforces while supporting text, image, and video understanding plus tool-calling capabilities. It serves as the default production-grade model in the Seed 2.0 family, handling roughly 95% of enterprise workloads at about half the cost of the flagship Pro variant. It supports a 256K context window and is positioned as a high-performance alternative for tasks like code review, document processing, information synthesis, and agent-based workflows.
ChatSeed 2.0 Mini
Seed 2.0 Mini is ByteDance's most lightweight and inference-efficient model in the Seed 2.0 family, released in February 2026 and optimized for low-latency, high-concurrency, and cost-sensitive applications. It features a 256K context window, multimodal capabilities (text, image, video), and a unique 4-level reasoning effort system. Despite being the smallest variant, it delivers strong benchmark scores (AIME 2025: 87.0, SWE-Bench: 67.9) at an extremely competitive price of $0.1/M input tokens.
ChatSeed 1.6 Flash
Seed 1.6 Flash is an ultra-fast multimodal model by ByteDance optimized for high-throughput and low-latency inference, supporting text, image, and video inputs with a 256K context window and up to 16K output tokens.
Frequently Asked Questions
You can access Seed 1.6 by ByteDance Seed through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add Seed 1.6 to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.
| Price per 1M tokens | |
|---|---|
| Input | $0.25 |
| Output | $2 |
Seed 1.6 was created by ByteDance Seed and released on Dec 23, 2025.
Seed 1.6 supports a context window of 262K tokens. For reference, that is roughly equivalent to 524 pages of text.
Seed 1.6 can generate up to 33K tokens in a single response.
Yes — the Seed 1.6 API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Get started with Puter.js
Add Seed 1.6 to your app without worrying about API keys or setup.
Read the Docs View Tutorials