ByteDance Seed 2.0 Lite Is Now Available in Puter.js

Puter.js now supports Seed 2.0 Lite, ByteDance's mid-tier general-purpose model in the Seed 2.0 family, designed to balance strong performance with cost efficiency.

What is Seed 2.0 Lite?

Seed 2.0 Lite is the default production-grade model in ByteDance's Seed 2.0 series, positioned between the lightweight Mini and the flagship Pro. It handles roughly 95% of enterprise workloads at about half the cost of Pro, making it the sweet spot for most real-world applications.

Key highlights:

• 256K context window with up to 128K output tokens
• Multimodal input supporting text, image, and video
• Agent-ready with built-in tool calling and multi-step reasoning
• Strong benchmarks scoring 93.0 on AIME 2025, 2233 on Codeforces, and 73.5 on SWE-Bench Verified

Seed 2.0 Lite excels at code review, bug fixes, document processing, information synthesis, and agent-based workflows.

Examples

Basic Chat

puter.ai.chat("Explain the concept of quantum computing in simple terms", {
    model: "bytedance-seed/seed-2.0-lite"
})

Streaming with Reasoning

const response = await puter.ai.chat(
    "Debug this logic: If I have 3 apples and give away 5, how many do I have?",
    { model: "bytedance-seed/seed-2.0-lite", stream: true }
);

for await (const part of response) {
    if (part?.reasoning) puter.print(part?.reasoning);
    else puter.print(part?.text);
}

Image Analysis

puter.ai.chat("What do you see in this image?",
    "https://assets.puter.site/doge.jpeg",
    { model: "bytedance-seed/seed-2.0-lite" }
)

Get Started Now

Just add one library to your project:

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

Or add one script tag to your HTML:

<script src="https://js.puter.com/v2/"></script>

No API keys and no infrastructure setup. Start building with Seed 2.0 Lite immediately.

Learn more:

• Free, Unlimited ByteDance Seed API
• Puter.js AI Documentation