aider/aider/website/docs/llms/xai.md

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Connecting to LLMs	400

xAI

You'll need a xAI API key.

To use xAI:

python -m pip install -U aider-chat

export XAI_API_KEY=<key> # Mac/Linux
setx   XAI_API_KEY <key> # Windows, restart shell after setx

# Grok 3
aider --model xai/grok-3-beta

# Grok 3 fast (faster, more expensive)
aider --model xai/grok-3-fast-beta

# Grok 3 Mini
aider --model xai/grok-3-mini-beta

# Grok 3 Mini fast (faster, more expensive)
aider --model xai/grok-3-mini-fast-beta

# The Grok 3 Mini models support the --reasoning-effort flag.
# See the [reasoning settings documentation](../settings/reasoning.md) for details.
# Example:
aider --model xai/grok-3-mini-beta --reasoning-effort high

# List models available from xAI
aider --list-models xai/