Grok 3 Mini Fast API

Access Grok 3 Mini Fast from xAI using Puter.js AI API.

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Model Card

Grok 3 Mini Fast is the speed-optimized variant of Grok 3 Mini, running on faster infrastructure for significantly quicker response times. It provides identical reasoning quality to Grok 3 Mini but is designed for latency-sensitive applications.

Context Window

131K

tokens

Max Output

131,072

tokens

Input Cost

$0.6

per million tokens

Output Cost

$4

per million tokens

API Usage Example

Add Grok 3 Mini Fast to your app with just a few lines of code.
No API keys, no backend, no configuration required.

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms", {
            model: "x-ai/grok-3-mini-fast"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

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Get started with Puter.js

Add Grok 3 Mini Fast to your app without worrying about API keys or setup.

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