Kimi context window calculator
Plan how much room your Kimi context bundle needs before you upload files or paste a large source package.
Kimi K3 budget planner
Kimi K3 supports a 1M-token context window. Output defaults to 128K tokens and can be raised to the full 1M.
Estimated cost
Source: Moonshot AI documentation. Last reviewed 2026-09-08. Prices reviewed 2026-09-08.
Frequently asked questions
What context window does this calculator use for Kimi?
It uses Kimi K3, Moonshot AI's flagship model, which supports a 1M-token context window. Output defaults to 128K tokens and can be raised to the full 1M.
Should I fill the whole Kimi context window?
Usually no. Reserve room for your instructions and the response. A focused bundle of the right files normally beats a much larger dump of everything you have.
Can Riflet build the source context?
Yes. Riflet can combine folders, PDFs, websites, GitHub repos, Obsidian vaults, and Notion exports into a portable context file for Kimi.
Does Riflet send my files to Kimi automatically?
No. Riflet exports the file locally. You choose when to paste or upload it.