Arca Blog
Notes from the team building Arca: what a proactive AI assistant is, how Arca writes in your voice, and honest comparisons with other tools.
What is a proactive AI assistant?
A proactive AI assistant acts before you ask. What that means in practice, what it needs to work, how much autonomy to give it, and how to tell a good one from a noisy one.
AI chief of staff: what it does and when you need one
What a chief of staff actually does, which parts of that job software can take on today, which parts it can't, and the signs that you need one.
How Arca writes in your voice and style
What "your voice" actually means in a reply or a document, where Arca gets it from, how you correct it, and what Arca deliberately won't do.
Arca vs Granola vs Otter: meeting notes vs getting the work done
A fair comparison of Granola, Otter and Arca, with facts taken from each company's own pages. What each one is built for, where they overlap, and how to choose.
Arca vs ChatGPT for everyday work
ChatGPT is a general-purpose assistant you open when you need it. Arca is a proactive assistant that starts from your meetings, email and chat. A fair look at where each fits, with ChatGPT facts from OpenAI's own pages.
Arca (heyarca.app) is not heyarca.com or Arca AI
Several products share the name Arca. This page explains which one is ours, the proactive AI assistant at heyarca.app, and how to tell it apart from the others.