# Choose the AI model

> Montage makes your video with one of three AI models: Haiku, Sonnet or Opus. The first version uses the one you pick; your changes then switch to Haiku, the fastest, to save your credits.

## The three models

| Model | What the menu says | Credits |
|---|---|---|
| **Haiku** | A quick change, for little | The fewest |
| **Sonnet** | The right change, for most | More |
| **Opus** | The most care, for hard changes | The most: « Opus may use more credits » shows when you pick it |

## The first version, then the changes

1. On **New video**, the model chip sits in the box. Its menu says « For the first version · then Haiku makes the changes ». On a paid plan, Sonnet is picked until you choose another.
1. Under the box, Montage says about how many credits the first version takes with that model (« About 3 credits »).
1. Once the first version is made, Montage moves your changes to Haiku. Ask shows a note: « Switched to Haiku for your changes, to save your credits. » Press **Change** in it to pick another model, or × to close it.
1. In **Ask**, the chip's menu says « For this change ». The model you pick there stays for the next changes, until you pick another.

## On the Free plan

Free makes its videos with Haiku. The chip is the same; picking Sonnet or Opus opens the plans: « Sonnet and Opus come with every plan. » On Free, the estimate says it against what you have left: « About 1 of your 10 free credits ».

> The estimate is never under 1 credit with Haiku, 2 with Sonnet, 5 with Opus. A long video with many files takes more.

## Questions

### Which model should I pick?

Sonnet for most first versions. Opus when the video is hard to get right. Haiku for quick changes; it is what Montage uses for changes unless you pick another.

### Can I use Opus for one change only?

Yes. Pick Opus in Ask's chip, send your change, then pick Haiku again: the choice stays until you change it.

### Why did my model change after the first version?

Montage switches changes to Haiku to save your credits. Press **Change** in the note to pick another.