Grok 4.1 Fast Reasoning - Starrise AI

Grok 4.1 Fast Reasoning is xAI’s language model, available through Starrise AI. Grok 4.1 reasoning variant.

Key Capabilities

OpenAI-compatible — Use directly with the OpenAI SDK
Streaming — Supports real-time SSE streaming
Strong reasoning — Suitable for complex, multi-step tasks

Quick Example

curl https://ai.alad.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4-1-fast-reasoning",
    "messages": [
      { "role": "user", "content": "Explain quantum entanglement in simple terms." }
    ]
  }'

Parameters

Parameter	Type	Required	Description
`model`	string	Yes	Fixed value: `grok-4-1-fast-reasoning`
`messages`	array	Yes	List of `{ role, content }` objects
`max_tokens`	integer	No	Maximum number of tokens to generate
`temperature`	float	No	`0`–`2`, controls randomness, default `1`
`stream`	boolean	No	Enable SSE streaming, default `false`
`top_p`	float	No	Nucleus sampling threshold

API Reference

View the interactive API Playground for Grok 4.1 Fast Reasoning.

Grok 4 Fast Non-Reasoning Grok 4.1 Fast Non-Reasoning

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