Morph: Morph V3 Large

morph/morph-v3-large

Try Morph V3 Large for free in your browser, and add it to your app for free with Puter.js AI API.

Try it free Add to your app

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

puter.ai.chat("Explain quantum computing in simple terms", {
    model: "morph/morph-v3-large"
}).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: "morph/morph-v3-large"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

Model Card

Morph V3 Large is Morph's high-accuracy code apply model, optimized for complex and precise code transformations. Like its faster sibling, it acts as the execution layer in agentic coding workflows — taking edit suggestions from reasoning models and merging them into existing code.

It achieves approximately 98% accuracy on code transformations at speeds around 4,500 tokens per second. The model supports a 262,144-token context window with up to 131,100 output tokens, allowing it to process entire codebases or large files in a single request.

Morph V3 Large is the better choice when edit correctness matters more than raw speed — particularly for production codebases or complex multi-file changes where a 2% accuracy gap can mean hundreds of broken edits at scale.

Context Window 262K

tokens

Max Output 131K

tokens

Input Cost $0.9

per million tokens

Output Cost $1.9

per million tokens

Release Date Jul 7, 2025

Try Morph V3 Large for free

Try Morph V3 Large instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.

Chat morph/morph-v3-large

Chat with Morph V3 Large

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Morph V3 Fast

Morph V3 Fast is a specialized code-editing model built by Morph, designed to serve as the execution layer in AI-assisted development workflows. Rather than generating code from scratch, it applies edits suggested by frontier reasoning models like Claude or GPT-4o to existing code files. It processes at approximately 10,500 tokens per second with around 96% accuracy on code transformations, making it one of the fastest options for automated code apply tasks. The model supports an 81,920-token context window and up to 38,000 output tokens. Morph V3 Fast is built for high-volume, latency-sensitive pipelines where code edits need to be applied rapidly and cheaply.

Frequently Asked Questions

How do I use Morph V3 Large?

You can access Morph V3 Large by Morph 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.

Can I try Morph V3 Large for free?

Morph V3 Large is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.

Is the Morph V3 Large API free for developers?

Morph V3 Large is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.

What is the pricing for Morph V3 Large?

Morph V3 Large costs $0.9 per 1M input tokens and $1.9 per 1M output tokens.

	Price per 1M tokens
Input	$0.9
Output	$1.9

Who created Morph V3 Large?

Morph V3 Large was created by Morph and released on Jul 7, 2025.

What is the context window of Morph V3 Large?

Morph V3 Large supports a context window of 262K tokens. For reference, that is roughly equivalent to 524 pages of text.

What is the max output length of Morph V3 Large?

Morph V3 Large can generate up to 131K tokens in a single response.

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

Yes — the Morph V3 Large 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.

Add Morph V3 Large to your app for free

Developers can integrate Morph V3 Large for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.

Get started How pricing works