AI

How to keep AI costs low with your own key: limits, smaller models and AI off mode

· 6 min read · বাংলায় পড়ুন

Using your own AI key is fair and transparent: you pay the provider only for what you use. But "pay for what you use" can feel scary if you don't know what drives the bill. This guide explains, in plain terms, how to reduce AI API cost without giving up the useful parts, so you always know roughly what you'll spend.

What you're actually paying for

Most AI APIs charge by tokens. A token is a small piece of text, roughly a short word or part of a longer one. You pay for tokens you send (the input) and tokens you get back (the output). Images and audio are also converted into a cost, usually higher than plain text.

So the bill grows with three things: how big the model is, how much you send, and how often you send it. Every tip below reduces one of these.

Note: Prices change often and vary a lot between models. We don't list numbers here; always check the provider's own pricing page before choosing a model.

1. Set a hard limit before anything else

This is the single most important step. On most provider dashboards you can:

  • Use prepaid credit and turn off auto-recharge, so spending stops when credit runs out.
  • Set a monthly budget or usage limit.
  • Turn on email alerts at part of your budget.
  • Set a per-key limit where supported, such as on OpenRouter.

Our step-by-step guides show where these settings usually are: OpenAI API key setup, plus our guides to Gemini API key setup and OpenRouter.

2. Use smaller models for simple jobs

Big models are impressive, but most video tasks don't need them. Writing a title, cleaning up a description or drafting hashtags is light work. Small, fast models handle it well at a fraction of the cost.

TaskModel size that usually works
Titles, descriptions, hashtagsSmall
Short summaries, chapter listsSmall to medium
Understanding complex screens or long transcriptsMedium to large
Polished Bangla writingTest small first, move up only if needed

A good habit: try the smallest model first. Move up only when the result isn't good enough. Read more in choosing an AI model for video tasks.

3. Send less, ask clearly

Trim what you send

If you want a title, the AI doesn't need your whole one-hour transcript. A short summary or the first few minutes is enough. Less input means fewer tokens.

Ask for short answers

Say "give me 3 title options under 60 characters" instead of "write some titles". Clear limits keep the output small and more useful.

Get it right in fewer tries

A clear prompt with audience, language and length saves repeated attempts. Our list of prompts for AI video editing helps here.

4. Avoid expensive habits

  • Sending many images. Images usually cost more than text. Send only the frames that matter.
  • Re-running the same request. Save good answers instead of asking again.
  • Using free models for private work. They save money but may log your prompts. That's a privacy cost.
  • Forgetting old keys. Delete keys you no longer use so they can't be misused.

5. Use local AI for repeated work

If you do a lot of small AI jobs every week, running a model on your own computer with Ollama will remove the per-request bill entirely once Ollama support arrives. You pay only for electricity, and your data stays at home. It needs a reasonable computer and some setup; see private local AI with Ollama.

6. Turn AI off when you don't need it

The cheapest AI request is the one you don't make. In Cinematic Recorder, the full recorder and editor work with AI off: recording (up to 60fps with Premium), camera bubble, click-based auto zoom, cursor smoothing, spotlight, focus highlight and reframing to 16:9, 9:16 or 4:5. None of these use your key. Read what you can still do in editing without AI.

AI features in the app use your own key, stored in Android Keystore and never sent to our servers. Captions from your speech already use it, or free daily credits if you have no key. The AI editing assistant, filler-word removal and AI translation are still coming soon. See the features page for how bring-your-own-key works.

A simple monthly routine

  1. At the start of the month, check your provider's usage page.
  2. Confirm your budget limit and alerts are still set.
  3. Look at which tasks used the most. Could a smaller model do them?
  4. Delete any unused keys.
  5. Top up only what you expect to use.

FAQ

How much will AI cost me per video?

It depends on the model, how much you send and how often. Text tasks with a small model are usually very cheap. Check your provider's pricing page and your usage page after a few videos to see your real number.

Can I use AI for free?

Cinematic Recorder gives a few free AI credits every day, some providers have free tiers with limits, and local AI with Ollama (coming soon) has no per-request cost. Free cloud tiers may use your data differently, so read their terms.

What happens if my credit runs out?

AI requests will fail until you add more. The rest of Cinematic Recorder keeps working normally.

Does Premium include AI credit?

Your plan sets how many AI tasks you can run: 3 a day on the free plan, unlimited on Premium and 100 a month on Lifetime. The AI usage itself runs on your own key and is billed by the provider you choose. Premium also covers the app's own features; see pricing for plan details.

With a hard limit, the right-sized model and the habit of turning AI off when it isn't needed, your AI bill stays small and predictable — and you stay in charge.

Try Cinematic Recorder free — record, then make it cinematic with auto zoom and a smart cursor. Download · All features