# Grok 4.3

Latest Grok model with 1M context and unlimited output. Fast reasoning with strong agentic capabilities.

## Overview

- **Provider:** xAI
- **Model ID:** `grok-4.3`
- **Type:** Chat
- **Canonical URL:** https://modelstack.cc/models/chat/grok-4.3
- **Version:** 4.3
- **Best for:** Long-document analysis, deep research, agentic workflows, cost-effective reasoning

## Pricing

| Usage | Price |
| --- | ---: |
| Input | $1.25 / 1M tokens |
| Output | $2.5 / 1M tokens |
| Cache read | $0.2 / 1M tokens |
| Cache write (5 minutes) | $1.25 / 1M tokens |

## Specifications

- **Context window:** 1M
- **Maximum output:** Unlimited
- **Typical latency:** 15 ms
- **Released:** 2026-04-30

## Capabilities

- chat
- tool_use
- coding

## API usage

Use this model ID in a ModelStack API request:

```json
{
  "model": "grok-4.3"
}
```

For the rendered page, visit https://modelstack.cc/models/chat/grok-4.3.