# xAI: Grok 4.5

Provider: x-ai  
Category: llm  
Model ID: `x-ai/grok-4.5`

Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

## Specs

- Context length: 500000 tokens
- Max output: unknown tokens
- Modalities: text, image, file
- Released: 2026-07-08

## Pricing

- Input: $2.00 per million tokens
- Output: $6.00 per million tokens

## Verdict

Grok 4.5 delivers a massive 500K token context window at $2/$6 per Mtok, making it a strong choice for document-heavy workflows where you need to process entire codebases or multi-chapter reports in one pass. The pricing undercuts most frontier models on input tokens, though output costs sit in the mid-range. Without public benchmarks, you're trading proven performance data for xAI's architectural bet on extreme context handling. Reach for this when context length matters more than established track records.

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Last verified: 2026-07-09T02:00:04.563Z  
Canonical URL: https://switchy.build/directory/models/grok-4-5