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Simon Willison releases open-source AI project Rex's Dino Store

Simon Willison has released Rex's Dino Store, an open-source project built with Python. The project is available on Mastodon and aims to showcase AI capabilities. AI

IMPACT This open-source project may provide a new tool for developers interested in AI and Python.

RANK_REASON This is a release of an open-source project, not a frontier model or significant industry event.

Read on Mastodon — sigmoid.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Simon Willison releases open-source AI project Rex's Dino Store

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
This is a release of an open-source project, not a frontier model or significant industry event.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
1 days old
Coverage has settled into its steady-state source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    Rex's Dino Store https://simonwillison.net/2026/Oct/2/rex-s-dino-store/ # AI # Python # OpenSource

    Rex's Dino Store https://simonwillison.net/2026/Oct/2/rex-s-dino-store/ # AI # Python # OpenSource