I also use them as coding assistants among other things, like lots of other people, and hitting and exceeding 200k is absolutely not the norm unless you're using a large number of huge MCP servers. At those context sizes output quality significantly declines, even with the claims of "we support long context". This is why all those coding assistants use auto-compression, not just to save money, but largely to maintain quality. In any case, >200k input calls are a small fraction of all.

Ironically at that input size, input costs dominate rather than output, so if that's the use case you're going for you want to be including those in your named prices anyway.