Google AI Edge Gallery

Simon Willison’s Weblog Subscribe Sponsored by: WorkOS — Production-ready APIs for auth and access control, so you can ship faster. Google AI Edge Gallery (via) Terrible name, really great app: this is Google's official app for running their Gemma 4 models (the E2B and E4B sizes, plus some members of the Gemma 3 family) directly on your iPhone. It works really well. The E2B model is a 2.54GB download and is both fast and genuinely useful. The app also provides "ask questions about images" and audio transcription (up to 30s) with the two small Gemma 4 models, and has an interesting "skills" demo which demonstrates tool calling against eight different interactive widgets, each implemented as an HTML page (though sadly the source code is not visible): interactive-map, kitchen-adventure, calculate-hash, text-spinner, mood-tracker, mnemonic-password, query-wikipedia, and qr-code. (That demo did freeze the app when I tried to add a follow-up prompt though.) This is the first time I've seen a local model vendor release an official app for trying out their models on in iPhone. Sadly it's missing permanent logs - conversations with this app are ephemeral. Posted 6th April 2026 at 5:18 am Recent articles The Axios supply chain attack used individually targeted social engineering - 3rd April 2026 Highlights from my conversation about agentic engineering on Lenny's Podcast - 2nd April 2026 Mr. Chatterbox is a (weak) Victorian-era ethically trained model you can run on your own computer - 30th March 2026 This is a link post by Simon Willison, posted on 6th April 2026. google 401 iphone 63 ai 1950 generative-ai 1731 local-llms 153 llms 1698 gemini 182 llm-tool-use 66 Monthly briefing Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments. Pay me to send you less! Sponsor & subscribe Disclosures Colophon © 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026