Compare proactive AI assistants

Five things decide most of it: where it lives, what it reads, how it asks before acting, where your data lives, and what it costs.

• Where it lives. Does it work in the messaging app you open every day, or in its own app or a workplace tool? An assistant that messages you first only helps if you see the message. Check which channels are available in your country today, not only which are planned.
• What it reads. Which mailboxes and calendars does it connect to? Check your own provider, not a logo list. Also check whether it starts read-only or asks for full access at once.
• How it asks before acting. Can you choose what it does alone, what it asks about and what it hands back to you? Does one approval cover a whole plan or a single step? See autonomy levels.
• Where your data lives. Where is it stored and processed, whose key encrypts it, is it used to train models, and can you see what the assistant remembers and delete it? See the privacy checklist.
• Price. Is it a flat fee, usage tiers or part of a bundle? What happens when you reach a limit? Is the price in a currency you pay in, and does it say what is included?

Gravel's own answers are on how it works, integrations and pricing.

Read the vendor's own pages, and check the date on each one. Pricing pages, help centers, privacy notices and release notes answer different questions.

• Pricing page: the plans and what each includes. Check the currency and the billing period.
• Help center or docs: channels, supported mailboxes and calendars, and availability by country.
• Privacy notice: where data may be stored or processed, whether it is used to train models, and how deletion works.
• Release notes: what changed recently, including features that were paused or limited.

When a vendor's pages do not answer a question, treat the answer as unknown, not as no. The comparison pages here write "Not stated" in that case.

Each comparison states the date it was made, uses the vendor's own pages wherever possible, and lists its sources at the end. It says "Not stated" when a vendor's public pages do not answer a question, and it says where the other product is the better fit.

We do not rank products. Gravel publishes this site and is one of the products compared, so read the comparisons with that in mind and check the sources. Products change quickly. If something here is wrong or out of date, email victor.gulchenko@gmail.com and we will correct it.