Monthly signal
The standout launches, model drops, and platform moves worth tracking.
Grok 4.5
xAI · Grok 4
xAI released Grok 4.5 on July 8, 2026.
Grok 4.5 is the xAI (SpaceXSI) model released on July 8, 2026, built for coding, agentic tasks and knowledge work, including real-world engineering and Office work in Excel, PowerPoint, Word and Outlook. It is priced at $2 per million input tokens and $6 per million output tokens, with configurable reasoning effort (low, medium or high, default high). It is available on the xAI API, in Grok Build and in Cursor on all plans, and reached EU users in the API console on July 17. xAI highlighted its token efficiency: it resolves SWE-Bench Pro tasks with 15,954 output tokens on average. Its successor is Grok 4.6.
Grok 4.5 at a glance
- Released
- Available on
- xAI APIGrok BuildCursor
- Announcement
- x.ai
What changed
xAI's published results include 64.7% on SWE-Bench Pro, 83.3% on Terminal Bench 2.1 and 29.0% on SWE Marathon (pass@1), the top score in its comparison.
xAI says it uses about 4.2x fewer output tokens per SWE-Bench Pro task than Claude Opus 4.8 at max effort.
New to model names and version numbers? Read how AI labs version their models.
Grok 4.5 release timeline
The launch and every later xAI release that mentions Grok 4.5, oldest first.
- Grok 4.5
Grok 4.5, SpaceXAI's model for coding, agentic tasks, and knowledge work, is now available on the xAI API. Priced at $2 / 1M input tokens and $6 / 1M output tokens, with configurable reasoning effort (low, medium, or high; default high).
Source: xAI Release Notes - Grok 4.5 available in the EU
Grok 4.5 is now available in the API console for EU users.
Source: xAI Release Notes
Grok 4.5 FAQ
When was Grok 4.5 released?
xAI released Grok 4.5 on July 8, 2026. The launch entry below links to the official announcement.
Where is Grok 4.5 available?
Grok 4.5 is available on xAI API, Grok Build and Cursor. Later availability changes are listed under follow-up releases on this page.
Other xAI models
Newsletter
Get xAI's updates in your monthly brief.
Each month we pull xAI's biggest releases into one clear read, alongside the launches that mattered from the rest of AI, so you don't have to watch every changelog yourself.
Zero feed fatigue
One tight read instead of bouncing between company blogs and timelines.
Built for operators
Clear summaries you can scan fast and forward to the team when needed.
Monthly dispatch
Subscribe to the newsletter
Get a clean monthly dispatch covering the launches that mattered, not every minor product breadcrumb.
Monthly digestMajor launchesFast summaries
One email each month, tuned for signal over noise.