# A/B testing hero images from Storyblok asset fields

Asked by freyaj on 2026-03-11. Tags: storyblok, ab-testing, assets.

I am a designer turned dev and we have three hero images I want to test
against each other on the homepage.

The hero block has an asset field for the image. Text fields map to slots
fine. Do image fields work the same way? And how many variants can one
experiment hold, three images plus the current one is four

Short questions but they decide the whole test design for me.

## 1 answer

### Answer from elin_m (2026-03-11)

Good news on both counts.

Image fields map like any other field. The only Storyblok field types that
are not supported are rich text, table, and reference fields. Everything
else on a block, asset fields included, maps normally, so your hero image
is fine.

On variant count: experiments support 2 to 5 variants, with a primary goal
and a traffic allocation percentage. Four variants (current image plus
three challengers) fits comfortably.

One modeling detail worth knowing before you build it: the variants live in
the experiment layer, not in Storyblok. Your hero block stays the single
canonical version and the default fallback, and each variant in the
experiment carries its own image value. So you do not duplicate blocks or
clutter the space with three extra heroes, the block your editors see stays
exactly one.

#### Reply from freyaj (2026-03-12)

Perfect. One block, four variants in the experiment. Clean. Thanks!