---
title: CID · Demo
emoji: 🧠
colorFrom: indigo
colorTo: blue
sdk: gradio
sdk_version: 5.44.1
python_version: '3.10.13'
app_file: app.py
pinned: false
models:
- fwerkor/CID-v1-0.4B
tags:
- cid
- continuous-interaction-diffusion
- diffusion-language-model
- tool-use
- reasoning
---

# CID · Demo

Interactive Hugging Face Space for the 398.8M-parameter `fwerkor/CID-v1-0.4B` checkpoint.

The demo exposes CID's revisable Display and runtime trace with example prompts for the released 0.4B checkpoint. `calculator`, `symbolic_math`, and the task-local workspace are enabled explicitly from the UI. The workspace editor is disabled until its tool switch is enabled; document-backed examples enable it automatically. Workspace mode exposes read-only `workspace_search` and `workspace_read` information needs while reasoning.

The model is mechanism-focused rather than a general-purpose chat model. The Space uses the published unified checkpoint and pins the CID runtime implementation to commit `5577a801c9927062989179eb45cd8f6ec7f3a191`.

## Code layout

- `app.py` — minimal Space entrypoint.
- `cid_demo/ui.py` — Gradio component tree and event wiring.
- `cid_demo/runtime.py` — CID request construction and benchmark execution.
- `cid_demo/model.py` — checkpoint download and model bundle initialization.
- `cid_demo/tools.py` — tool descriptors and math argument extraction.
- `cid_demo/workspace.py` — task-local document parsing.
- `cid_demo/examples.py` — public examples and workspace fixtures.
- `cid_demo/presentation.py` and `cid_demo/assets/styles.css` — display formatting, HTML, and styling.