Context Window Calculator — Fit vs Model Limit
See how your prompt fits against each model context window. Coming soon — count tokens first with the LLM token counter.
Coming soon
This tool is on the roadmap. Shared pricing data and navigation are already wired.
How it will work
Paste a token total or link from the token counter to see used vs limit, percentage, and optional reserve headroom.
FAQ
Context window calculator (coming soon)
Where do context limits come from?
From the same versioned llm-models.json table as the token counter and pricing tools.
AI & LLM
Token counting, pricing estimates, and context-window fit — 100% browser-local.
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