xAI · Model release
Grok 4.5: xAI's July 2026 API model
This July 2026 guide records Grok 4.5's documented API surface; use xAI's current model and pricing pages to check the exact live limits and charges before deployment.
What changed
- xAI's model documentation lists the model and its API capabilities; token tiers, tool charges and context limits can vary by request and should be checked on the linked live docs.
- Search-grounded results are not a substitute for checking whether a specific xAI tool is enabled and billed for your account.
Best fit
- Real-time data queries
- Technical tasks
- Cost-sensitive mid-tier work
What to be careful about
- Confirm current long-context rates and any separately metered tools before estimating spend.
Dataset snapshot: Grok 4.5 is also represented in the checked comparison dataset. Prices and benchmark figures carry their own field dates.