When does Grok 4.5 2026 release?

Grok 4.5 2026 is scheduled to release on Thursday, July 9, 2026 (exact time not yet confirmed).

What context window size does Grok 4.5 support?

The model supports a context window of up to 500,000 tokens.

Are there additional API costs beyond base token pricing?

Web and X search tool calls are billed separately at $5.00 per 1,000 calls. Priority processing is available at double the standard token rates, while cached input tokens carry a reported 75 percent discount.

How does Grok 4.5 integrate into software development workflows?

The model was trained in partnership with Cursor and is natively available across all Cursor plans. It handles complex coding tasks in languages such as Rust, C, and C++, as well as end-to-end application generation from minimal specifications.

Product Releases

Grok 4.5 Released

Name: Grok 4.5
Brand: SpaceXAI

Thursday, July 9, 2026 · Time not confirmed

Released

Thursday, July 9, 2026

90 days ago

Official Event Link

Grok 4.5 is designed for multi-step software engineering, STEM fields, and complex administrative office tasks. Trained alongside coding assistant startup Cursor, the model emphasizes token efficiency, requiring fewer reasoning steps and output tokens to complete software development benchmarks compared to preceding architectures. Beyond standard coding tasks, the system features dedicated integrations with office productivity applications, including plugins for Word, PowerPoint, Excel, and Outlook. It serves as the default engine within Grok Build, enabling automated creation of financial spreadsheets, slide decks, and interactive web applications from single prompts.

Details

Brand / Manufacturer: SpaceXAI
Product type: AI Model
Model: Grok 4.5
Key specifications: Serves at 80 TPS; trained across tens of thousands of NVIDIA GB300 GPUs; priced at $2 per million input tokens and $6 per million output tokens.
Region Availability: Global

Release information

Access is provided through the developer console API, Cursor across all subscription plans, and within Grok Build. End-user consumer availability is organized across multiple subscription tiers, ranging from a limited free tier to higher-volume options such as SuperGrok Heavy. Developers can also access the system via third-party model routers.

Where to Buy

Buy now

Frequently asked questions

When does Grok 4.5 2026 release?: Grok 4.5 2026 is scheduled to release on Thursday, July 9, 2026 (exact time not yet confirmed).
What context window size does Grok 4.5 support?: The model supports a context window of up to 500,000 tokens.
Are there additional API costs beyond base token pricing?: Web and X search tool calls are billed separately at $5.00 per 1,000 calls. Priority processing is available at double the standard token rates, while cached input tokens carry a reported 75 percent discount.
How does Grok 4.5 integrate into software development workflows?: The model was trained in partnership with Cursor and is natively available across all Cursor plans. It handles complex coding tasks in languages such as Rust, C, and C++, as well as end-to-end application generation from minimal specifications.

Last updated: 9/4/2026