Grok 4.5
language modelxAI
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Key facts
| Made by | xAI |
|---|---|
| Type | language model |
| Released | July 8, 2026 |
| Reads at once | 500,000 tokens |
| Price (API, per million tokens) | $2 in · $6 out |
| Input → output | text, image, file → text |
Questions about Grok 4.5
Who makes Grok 4.5?
Grok 4.5 is made by xAI.
When was Grok 4.5 released?
We first saw Grok 4.5 listed on July 8, 2026.
How much does Grok 4.5 cost?
Through OpenRouter it costs $2 per million input tokens and $6 per million output tokens. Prices change, so check the provider before you build on it.
How much text can Grok 4.5 read at once?
Up to 500,000 tokens, roughly 375K words.
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Modelcast collects this page automatically from public sources (OpenRouter). Facts are copied from those sources, not written by the maker. Not affiliated with xAI.