xAI
Grok 4.5
x-ai/grok-4.5
Balanced Grok for coding and knowledge work, 500K context.
TextText, Images, Files → TextReady on endue
- Coding
- Reasoning
Overview
Good for
Written by endue
- Coding
- Reasoning
Not ideal for
From the model’s specs
Nothing in the specs rules out common agent work.
Capabilities
| Tool use | Supported |
|---|---|
| Structured output | Supported |
| JSON mode | Supported |
| Reasoning | Supported |
| Vision | Supported |
| Audio input | Not supported |
| Video input | Not supported |
| File input | Supported |
| Long context | Supported |
Specifications
- Model ID
x-ai/grok-4.5- Family
- Grok 4
- Context window
- 500K tokens
- Input
- Text, Images, Files
- Output
- Text
- Knowledge cutoff
- 2026-03
- Released
- 2026-06-25