Grok 4.5
Agentic software engineering and workflow automation that need strong coding capability at a competitive price.
What are Grok 4.5's specs and price?
Grok 4.5, built by xAI, ships a 500K-token context window and a 64K-token max output, released 2026-07. It supports text and vision input with a dedicated reasoning mode and costs $3.00 per million blended tokens, the 27th-cheapest of 37 models we track.
Specs
| Context window | 500K tokens |
| Max output | 64K tokens |
| Modalities | text, vision |
| Extended thinking | Yes |
| Released | 2026-07 |
| Knowledge cutoff | 2026-02 |
| Provider | xAI |
Verified 2026-08-14 — source.
Where it ranks
Strengths
- xAI coding model for agents and engineering
- Configurable reasoning for complex tasks
- 500K-token context at $2/$6 per million tokens
More about Grok 4.5
FAQ
What is Grok 4.5's context window?
Grok 4.5 has a 500K-token context window and a 64K-token max output — the 19th-largest context of the 37 current models we track. Source: https://docs.x.ai/developers/models/grok-4.5, verified 2026-08-14.
Does Grok 4.5 support vision or audio input?
Yes — Grok 4.5 accepts vision input in addition to text.
Does Grok 4.5 have a reasoning or extended-thinking mode?
Yes — Grok 4.5 exposes a dedicated reasoning mode for multi-step problems.
When was Grok 4.5 released, and what is its knowledge cutoff?
Grok 4.5 was released 2026-07 with a knowledge cutoff of 2026-02.
How much does Grok 4.5 cost, and who provides it?
Grok 4.5 is served by xAI at $3.00/M blended tokens (3:1 input:output) — the 27th-cheapest of 37 current models. Full pricing breakdown: /llm-api-pricing/grok-4-5.