Interesting. My CC (2.1.45) doesn't provide the 1M option at all. Huh.
Is your CC personal or tied to an Enterprise account? Per the docs:
> The 1M token context window is currently in beta for organizations in usage tier 4 and organizations with custom rate limits.
alt Hacker News
Is your CC personal or tied to an Enterprise account? Per the docs:
> The 1M token context window is currently in beta for organizations in usage tier 4 and organizations with custom rate limits.