# Grok 4.5 vs Grok 4 (2026): Price, Context & Verdict | Alher Tech

> Grok 4.5 vs Grok 4: head-to-head 2026 comparison across pricing, context window, modality and licence. Verdict + use cases.

- Canonical page: https://alhertech.com/en/ai-comparison/grok-4-5-vs-grok-4/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | Grok 4.5 | Grok 4 |
| --- | --- | --- |
| Price in/out ($/M) | $2 / $6 | $3 / $15 |

## Our verdict

Grok 4.5 cuts the price to $2 / $6 per M tokens from Grok 4's $3 / $15 and roughly doubles the context, 500K against 256K. It is also aimed somewhere else: xAI positions 4.5 on coding, technical analysis and STEM, while Grok 4 sold on realtime access to X data and a less-restrictive tone for edge cases. If those two things are why you picked xAI in the first place, confirm they survive the jump before you migrate. For technical and STEM workloads, 4.5 is clearly the better deal. Both still trail rivals on context, which now reaches 1M elsewhere.

[Grok 4.5](https://alhertech.com/en/ai-comparison/grok-4-5/) · [Grok 4](https://alhertech.com/en/ai-comparison/grok-4/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)