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

# Isaac 0.1

> Legacy 2B VLM, still supported for existing integrations.

## Specs

* **Model ID**: `isaac-0.1`
* **Inputs**: Text, Images
* **Outputs**: Text
* **Context**: 8K tokens
* **Reasoning**: No
* **Pricing**: \$0.15/M input, \$1.25/M output
* **Supported MIME types**: `image/png`, `image/jpeg`, `image/webp`
* **Source**: [Open weights on Hugging Face](https://huggingface.co/PerceptronAI/Isaac-0.1)

## Grounding

Isaac 0.1 uses `<hint>...</hint>` values inside a system-role message for spatial output formats.

```json theme={null}
{
  "model": "isaac-0.1",
  "messages": [
    { "role": "system", "content": "<hint>BOX</hint>" },
    { "role": "user", "content": [...] }
  ]
}
```

Supported hints: `BOX`, `POINT`, `POLYGON`. Thinking and focus are not supported on Isaac 0.1.

## Benchmarks

<img src="https://mintcdn.com/perceptron/HENOW0pHtYR0BLyy/images/isaac_0_2_benchmark_comparison.png?fit=max&auto=format&n=HENOW0pHtYR0BLyy&q=85&s=648c9344e9b76a76e5b27617816b30a4" alt="Isaac 0.x benchmark comparison" width="1500" height="1491" data-path="images/isaac_0_2_benchmark_comparison.png" />