> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bioptimus.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Drug target & biomarker discovery

> Predict drug target distribution, immune microenvironment, and stromal architecture from routine histology slides.

Routine H\&E slides carry far more signal than the standard read extracts. Bioptimus models predict the spatial distribution of drug targets, the immune microenvironment, and stromal architecture directly from slides you already have — no new assays required to begin.

## What it enables

* Turn existing H\&E archives into a discovery substrate for targets and biomarkers
* Characterize the tumor microenvironment spatially, not just globally
* Generate hypotheses before committing to expensive spatial or molecular assays

## How it works

<Steps>
  <Step title="Extract features">
    Run [H-Optimus](/documentation/models/h-optimus) over slide tiles to produce tile-level embeddings, or [M-Optimus](/documentation/models/m-optimus) when molecular data is available.
  </Step>

  <Step title="Model the signal of interest">
    Train lightweight downstream models on the embeddings to predict target expression, microenvironment features, or architecture.
  </Step>

  <Step title="Map results back to the slide">
    Use tile coordinates to render spatial maps of the predicted signal.
  </Step>
</Steps>

<Card title="Get started" href="/documentation/quickstart">
  Deploy a model and extract your first features.
</Card>