Build one message on two models and keep the version you prefer
Every AI model has its own strengths, so instead of guessing which one fits your request, you can now run the same message on two models at once and choose the result you like. Pick the 2 models from the model picker, click Compare, then send your message.
- Preview before you commit: The chat shows each version's status as it builds, then asks which you prefer. Your main app stays untouched until you choose, and you can reject both.
- Find them in your branches: Each compared version is a branch of your app, so both are in your branches list while you decide.
<Warning>
Comparing models requires a [Builder plan](https://base44.com/pricing) or higher, and it builds your message twice, so it uses 2× credits.
</Warning>
Read more: Comparing models