ModelInfo
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Grok 4.1 Fast (Non-Reasoning)

xAIgrok-4-1-fast-non-reasoningReport incorrect data

Specs

Context
2M
Max output
—
Input price
$0.2/ 1M tokens
Output price
$0.5/ 1M tokens
Released
—

Context

Context window
2M
Max input
—
Max output
—

Pricing · USD / 1M tokens

Input
$0.2
Output
$0.5
Cache read
$0.05
Cache write
—

Modalities

Input
TextImage
Output
Text

API

API types
chat

Reasoning

Reasoning
No

Info

Status
Retired
Released
—
Knowledge cutoff
—

Features

Confirmed
toolsstructured_outputcaching
Source · official docsVerified 2026-10-11

How to call

1 provider

xaimodel = grok-4-1-fast-non-reasoning

chat
POSThttps://api.x.ai/v1/chat/completions

JSON

Standard format
grok-4-1-fast-non-reasoning.json
{
  "id": "grok-4-1-fast-non-reasoning",
  "object": "model",
  "created": null,
  "owned_by": "xai",
  "name": "Grok 4.1 Fast (Non-Reasoning)",
  "api": {
    "types": [
      "chat"
    ]
  },
  "limits": {
    "context": 2000000,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": false,
    "efforts": []
  },
  "pricing": {
    "currency": "USD",
    "unit": "1M_tokens",
    "input": 0.2,
    "output": 0.5,
    "cache_read": 0.05,
    "cache_write": null
  },
  "features": [
    "tools",
    "structured_output",
    "caching"
  ],
  "info": {
    "status": "retired",
    "release_date": null,
    "knowledge_cutoff": null,
    "description": null,
    "docs": "https://docs.x.ai/developers/migration/may-15-retirement",
    "verified_at": "2026-10-11"
  }
}

Official sources

2