Grok 4.5
2026-07-08 · Publisher : xAI · Domain : Artificial Intelligence
SpaceXAI introduces Grok 4.5, a model for code, agents and knowledge work, trained with Cursor and priced at 2 USD input and 6 USD output per million tokens.
What changes
- Announced on July 8, publicly available on July 9, 2026 (Axios, TechCrunch); the x.ai/news page consulted shows July 16.
- "V9" base of 1.5 trillion parameters (Wikipedia), trained on tens of thousands of NVIDIA GB300 GPUs.
- Claimed token efficiency about 4.2 times higher than comparable models.
- Speed of 80 tokens per second; also covers Excel, PowerPoint and Word.
### Specifications - API identifier: grok-4.5. - Context: 500k tokens. - Availability: Grok Build, Cursor, SpaceXAI console; not yet in the EU at launch. ### Pricing | Item | Input | Output | |---|---|---| | Standard (under 200k tokens) | 2 USD | 6 USD | | Cache | 0.30 USD | - | | Long-context tier | 4 USD | 12 USD | Free for a limited time in Grok Build and Cursor. ### Benchmarks | Benchmark | Score | |---|---| | SWE Marathon | 29.0% (versus 16 to 26% for competing models) | Scores published by the vendor. ### Key takeaways First model released under the SpaceXAI brand after SpaceX's initial public offering.
Links
Tags : LLM, xAI, Grok, Code, Agents, SpaceXAI