Ship a Full-Stack App with One Prompt

Copy this prompt into your AI coding agent, or open it in one below.

Give this to your AI Create a to-do list app using Puter.js

Coding manually? see the guide

Anthropic: Claude 3.5 Sonnet

This model is no longer available.

Add AI to your application with Puter.js.

Explore Other Models

Model Card

Claude 3.5 Sonnet balances intelligence and speed, and was the first Claude model to introduce computer use capabilities (screen navigation, clicking, typing) in public beta. It offered performance close to Claude 3 Opus at one-fifth the cost.

Context Window 200K

tokens

Max Output 8K

tokens

Input Cost $3

per million tokens

Output Cost $15

per million tokens

Input text, image, pdf

modalities

Tool Use Yes

 

Knowledge Cutoff Apr 30, 2024

 

Release Date Oct 22, 2024

 

Code Example

Add AI to your app with the Puter.js AI API — no API keys or setup required.

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

puter.ai.chat("Explain quantum computing in simple terms").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").then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

More AI Models From Anthropic

Find other Anthropic models

Chat

Claude Sonnet 5

Claude Sonnet 5 is Anthropic's newest Sonnet-tier model, released June 30, 2026 as the successor to Sonnet 4.6. Anthropic built it to be the most agentic Sonnet yet, with gains in planning, tool use, coding, and multi-step reasoning that bring it close to Opus 4.8 quality at a lower price. On SWE-bench Pro it scores 63.2%, up from Sonnet 4.6's 58.1% and ahead of GPT-5.5's 58.6%, though still behind Opus 4.8's 69.2%. On Terminal-Bench 2.1 it reaches 80.4% versus Sonnet 4.6's 67.0%, and on the OSWorld-Verified computer-use benchmark it posts 81.2% against Sonnet 4.6's 78.5%. It targets developers running agentic coding pipelines, automation workflows, and tool-heavy tasks who want most of Opus-tier capability without Opus pricing. Introductory pricing is $2/$10 per million input/output tokens through August 31, 2026, after which it reverts to the standard $3/$15 listed here.

Chat

Claude Fable 5

Claude Fable 5 is Anthropic's most capable generally available model — a publicly released, safety-hardened version of its frontier Mythos-class system, launched June 2026. It is state-of-the-art on nearly every benchmark Anthropic tested, with its lead over prior Claude models growing the longer and more complex the task. It scores 80.3% on SWE-bench Pro, well ahead of Claude Opus 4.8 (69.2%) and GPT-5.5 (58.6%). During early testing, Stripe used it to run a codebase-wide migration in a day that would have taken a team over two months by hand. It's also Anthropic's new state-of-the-art for vision tasks and can work autonomously longer than any previous Claude model. Priced at $10/$50 per million input/output tokens — less than half the cost of Claude Mythos Preview — it targets developers building agentic coding pipelines, vision-heavy workloads, and long-horizon autonomous tasks. Queries on a small set of sensitive topics fall back to Opus 4.8 (on average under 5% of sessions).

Chat

Claude Opus 4.8

Claude Opus 4.8 is Anthropic's latest flagship AI model, building on Opus 4.7 with improvements across coding, reasoning, and knowledge work — at the same price point. The model excels at complex, multi-step agentic workflows including coding, financial analysis, legal reasoning, and browser-based computer use. Early testers report it outperforms both prior Opus models and GPT-5.5 across several agentic benchmarks. Notably, it's around four times less likely than Opus 4.7 to let flaws in generated code pass without flagging them. Opus 4.8 supports configurable effort levels, letting developers trade quality against speed and token cost. A fast mode operates at 2.5× speed. Priced at $5/$25 per million input/output tokens, it targets teams running autonomous agents, analysis pipelines, and long-running async workflows where reliability and judgment are critical.

Frequently Asked Questions

How do I use Claude 3.5 Sonnet?

You can access Claude 3.5 Sonnet by Anthropic 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.

Is Claude 3.5 Sonnet free?

Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add Claude 3.5 Sonnet to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.

What is the pricing for Claude 3.5 Sonnet?
Claude 3.5 Sonnet costs $3 per 1M input tokens and $15 per 1M output tokens.
Price per 1M tokens
Input$3
Output$15
Who created Claude 3.5 Sonnet?

Claude 3.5 Sonnet was created by Anthropic and released on Oct 22, 2024.

What is the context window of Claude 3.5 Sonnet?

Claude 3.5 Sonnet supports a context window of 200K tokens. For reference, that is roughly equivalent to 400 pages of text.

What is the max output length of Claude 3.5 Sonnet?

Claude 3.5 Sonnet can generate up to 8K tokens in a single response.

What is the knowledge cutoff of Claude 3.5 Sonnet?

Claude 3.5 Sonnet has a knowledge cutoff date of Apr 30, 2024. This means the model was trained on data available up to that date.

What types of input can Claude 3.5 Sonnet process?

Claude 3.5 Sonnet accepts the following input types: text, image, pdf. It produces: text.

Does Claude 3.5 Sonnet support tool use (function calling)?

Yes, Claude 3.5 Sonnet supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.

How does Claude 3.5 Sonnet perform on benchmarks?

Claude 3.5 Sonnet scores 9.9 on the Artificial Analysis Intelligence Index, outperforming 36% of tracked models. On coding, it scores 30.2 (outperforms 43% of models).

Does it work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Claude 3.5 Sonnet 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 AI to your application without worrying about API keys or setup.

Explore Models View Tutorials