Unofficial guide. Not affiliated with Meta.

Last updated:

AI coding cost calculator

Enter how you work. The calculator estimates what each of 7 AI coding tools would cost you per month and picks the cheapest plan or token tier that covers it.

ToolBest option for youEst. per monthNote
How the estimate works

Tasks per month = tasks per day x days per week x 4.33. For pay-per-token tiers we assume each task reads the token volume below for your codebase size, with 60% of input served from cache. For subscriptions we pick the cheapest plan whose usage allowance we estimate covers your task count. Plan allowances are our editorial estimates, not vendor numbers. Treat the result as a guide.

  • Small (< 10k lines): ~60k input + ~6k output tokens per task
  • Medium (10k-100k lines): ~150k input + ~12k output tokens per task
  • Large / monorepo (> 100k lines): ~400k input + ~25k output tokens per task

How to read the result

What the estimate assumes

One agent task reads the token volume below for your codebase size. 60% of input is served from cache, and a month has 4.33 weeks. Plan allowances are our editorial estimates, not vendor numbers.

Codebase sizeInput tokens / taskOutput tokens / task
Small (< 10k lines)60,0006,000
Medium (10k-100k lines)150,00012,000
Large / monorepo (> 100k lines)400,00025,000

Real usage varies a lot with task size, model and reasoning effort. Treat the result as a guide, not a quote.

Prices the calculator uses

Every price comes from the vendor's official pricing page (monthly billing, USD).

ToolTypePriceFree tierPlatforms
Muse CodeTerminal coding agent (CLI)$5-$50/moNo free usage tier listed. Installing is free; you pay per token or by plan.macOS, Linux, Windows (native, PowerShell)
Claude CodeTerminal coding agent (CLI) + IDE extensions$20-$200/moNot included in the free Claude planmacOS, Linux, Windows
CursorAI code editor (VS Code fork) + CLIFree, $20-$200/moHobby plan with limited agent requestsmacOS, Windows, Linux
GitHub CopilotIDE extension + coding agentFree, $10-$100/moFree plan with monthly capsVS Code, JetBrains, Visual Studio, CLI and more
OpenAI CodexCLI + cloud agent (via ChatGPT plans)$8-$200/moLimited Codex access on ChatGPT Free and GomacOS, Linux, Windows
Devin Desktop (Windsurf)AI code editorFree, $20-$200/moFree plan with a light agent quotamacOS, Windows, Linux
Gemini CLITerminal coding agent (CLI), open sourceFree, $19.99-$99.99/mo1,000 requests/day with a personal Google accountmacOS, Linux, Windows

Prices from each vendor's official pricing page, monthly billing, checked September 28, 2026. Prices change often, so confirm before you buy.

FAQ

Which AI coding tool is cheapest?

It depends on volume. For light use, pay-per-token tiers usually win: Muse Code's Standard tier is $1.25 per 1M input tokens, and the Contributor tier is $0.10 if you allow Meta to train on your data. For daily heavy use, a flat plan is usually cheaper. Enter your own numbers above to see which applies.

How accurate is the estimate?

Prices are exact list prices. The token volume per task and how many tasks a plan covers are our estimates, so your real bill can be higher or lower.

Does it include taxes and card fees?

No. Prices are USD list prices before local taxes, currency conversion and card fees.

Why is a tool missing from the result?

If you tick "Company code", options that use your sessions for training are removed, and a tool with no option left is not shown.