Dev

AI Token Estimator

Rough token and cost estimate for prompts — napkin math for LLM calls.

Free online ai token estimator — runs entirely in your browser. Nothing is sent to our servers.

Prompt / input text

Model price sketch

Expected completion tokens

Estimate

Input tokens (approx)18

Completion tokens400

Total418

Cost sketch (USD)$0.00024

Heuristic only (~4 chars/token). Vendor tokenizers and list prices change — verify before budgeting. Need production AI systems? See Myrafy services.

About this tool

Use this free browser-based ai token estimator when you need a quick dev utility without installing software. Processing stays on your device for privacy. Related searches: token, llm, openai, gpt, cost.