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Cerebras Setup Guide

This guide will help you set up Janito to use Cerebras as an LLM provider.

Prerequisites

  1. A Cerebras account
  2. An API key from Cerebras

Getting an API Key

  1. Visit the Cerebras API Keys page
  2. Log in to your account
  3. Generate a new API key
  4. Copy the API key for use in Janito

Configuration

To configure Janito to use Cerebras, you need to set your API key:

janito --set-api-key YOUR_CEREBRAS_API_KEY -p cerebras

Replace YOUR_CEREBRAS_API_KEY with the API key you obtained from Cerebras.

Usage

After setting up your API key, you can use Cerebras models with Janito:

janito -p cerebras "Hello, how are you?"

By default, Janito will use the qwen-3-coder-480b model. You can specify a different model if needed:

janito -p cerebras -m qwen-3-coder-480b "Explain quantum computing"

Available Models

Cerebras offers several models through their API:

Production Models:

  • llama-4-scout-17b-16e-instruct
  • llama-3.3-70b
  • llama3.1-8b
  • qwen-3-32b

Preview Models:

  • llama-4-maverick-17b-128e-instruct
  • qwen-3-235b-a22b-instruct-2507
  • qwen-3-235b-a22b-thinking-2507
  • qwen-3-coder-480b
  • gpt-oss-120b

Notes:

  • qwen-3-coder-480b: 32k context, reasoning-focused model with function calling support

Troubleshooting

If you encounter issues:

  1. Verify your API key is correct and active
  2. Check that you have internet connectivity
  3. Ensure you're using a supported model name
  4. Check the Cerebras status page for any service outages

For further assistance, consult the Cerebras documentation.