Shortwave

Best for: Gmail-committed users wanting deep AI search without switching clients

Pros:
+ Natural language search (e.g., 'invoices over $500 from last quarter')
+ Per-thread AI answers using adaptive thinking across entire conversations
+ Automatic bundling reduces inbox clutter
+ Max plan includes Claude Opus with extended context

Cons:
- Gmail-only; non-starter for Outlook or custom IMAP users
- No free tier; eliminated in 2025
- Business plan starts at $24/month, scaling up to $100/month for Max

Ranked #2 of 4, score 8.8/10 in "Best AI Email Assistant in 2026: Top Tools for Power Users and Teams" by Top Ratings Hub, updated 2026-06-25.

Round-up topic: best ai email assistant.

Editorial pick from a published round-up — not an advertisement placed by a private seller, and nobody on Bazeta is selling it.

Source: Top Ratings Hub — https://topratingshub.com/best/best-ai-email-assistant-in-2026-top-tools-for-power-users-and-teams