Grok 4.5
Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Specifications
| Lab | xAI |
|---|---|
| Context window | 500K tokens |
| Input price | $2.00/1M |
| Output price | $6.00/1M |
| Release | Jul 2026 |
Strengths
- Supports text and image input with text output
- 488K-token context window for long documents
- Tool-use support for agentic workflows
- Structured output support for reliable application integration
Weaknesses
- Newer listing with limited independent benchmark coverage
- Multimodal performance may vary by provider endpoint
Best for
- Agentic workflows and tool-using applications
- Multimodal document and screenshot analysis
- Long-context document and codebase processing
In Depth: Grok 4.5
Summary
Grok 4.5 is an AI model from xAI.
Released in Jul 2026. It takes text, image, and file input and produces text output, with a context window of 500K tokens. Input pricing is $2.00 per 1M tokens and output is $6.00 per 1M tokens on OpenRouter.