AI minutes explained: what indexing and Astrono cost

Exactly how many AI minutes each action in Soontra uses, which things are free and unlimited, and how to check your usage or buy more.

Last updated Jul 23, 2026

AI minutes are the single meter behind Soontra's heavy AI work. Instead of separate counters for transcription, generation, and agent tasks, everything draws from one monthly pool — and everyday conversation with Astrono never touches it.

What are AI minutes

Every plan includes a monthly allowance of AI minutes:

  • Starter — 600 AI minutes per month
  • Creator — 4,800 AI minutes per month
  • Enterprise — 20,000 AI minutes per month
  • Free — 0 (the 7-day trial includes 120)

Minutes are spent only on work that genuinely crunches through material or takes action at scale — indexing, agent runs, generation, and exports. If a piece of heavy AI work doesn't finish, you aren't charged for it.

Indexing costs by file type

Indexing a file when you upload it (or later) costs:

  • Video — 1 AI minute per video minute
  • Audio — 0.25 AI minutes per audio minute
  • Image — 0.25 AI minutes flat
  • Document — 0.05 AI minutes per page
  • Spreadsheet — about 0.05 AI minutes

So a 10-minute video costs 10 AI minutes to index, and a 40-minute podcast costs 10. See how AI indexing works for what those minutes buy you.

Astrono: chat unlimited, agent runs cost minutes

  • Chat and Research mode — 0 AI minutes, unlimited. Asking questions, brainstorming, and refining drafts never moves the meter.
  • Agent mode — each plan-execution costs about 12 AI minutes, because Astrono plans a task, carries out the steps across your workspace, and verifies its own work.

The split is covered in detail in Research mode vs Agent mode.

Generation and export costs

  • Image generation — 1.5 AI minutes per image
  • Video generation — 15 AI minutes per video
  • Video export — 0.5 AI minutes per output minute

Check usage and buy more

Open Settings → Usage to see your AI minutes and storage broken down for the current cycle.

If you run low, you can top up at $5 per 60 AI minutes on any paid plan — no plan change required. If you're consistently running out, moving up a tier is usually the better deal; compare allowances in plans and pricing.