## Hacktoberfest Open‑Source AI Challenge – Week 4 Winners

Hacktoberfest Open‑Source AI Challenge – Week 4 Winners

The final week of the Hacktoberfest DEV Challenges is over.

The “Ghost in the Machine” theme attracted many contributors.

Three projects were chosen as winners.

Each winner showed creative use of AI in open‑source tools.

The judges praised clean code, clear documentation, and impact on the community.

# Example from a winning project
def ghost_detect(image):
    Detect hidden patterns in an image.
    model = load_model('ghostnet')
    return model.predict(image)

The winners receive badges, swag, and a spotlight on DEV.

The community can view the full results and learn from the code.

More details are available at the original article: https://dev.to/devteam/congrats-to-the-hacktoberfest-open-source-ai-challenge-week-4-ghost-in-the-machine-winners-nok