How AI helps with email
Email AI does three high-value jobs: drafting (writing or replying), summarising (condensing long threads into decisions and action items), and triage (prioritising, categorising, and surfacing what needs you). As with spreadsheets, tools split into embedded options that live inside your mail client and read your messages directly, and companion chatbots you use on the side. The right pick depends on whether you value seamless context or maximum writing quality and low cost.
Superhuman vs Copilot vs Gmail Gemini
Superhuman is a fast, keyboard-driven email client with AI built in. Its strengths are speed and short, on-brand replies: it can draft from a one-line instruction, match your writing style, and summarise threads, all without leaving a deliberately minimal interface. It is aimed at people who live in email and want to clear the inbox quickly.
Microsoft Copilot in Outlook drafts and rewrites messages, adjusts tone and length, and summarises threads — with the advantage of seeing your calendar and Microsoft 365 context. It is the natural choice for Outlook-based organisations.
Gemini in Gmail offers the same shape of help — “Help me write”, thread summaries, and smart replies — integrated with the rest of Google Workspace. It is the obvious pick for teams already in Gmail.
Claude and ChatGPT as companions
For the best-written emails — a delicate negotiation, a tricky customer reply, a persuasive pitch — drafting in Claude or ChatGPT and pasting the result back often beats the embedded tools on nuance and tone. A chatbot also lets you iterate freely (“make it warmer”, “cut it in half”, “add a clear call to action”) without any subscription. The cost is context: you must paste in the relevant thread, and you should avoid pasting confidential content into a consumer tier.
Which to use by task
For fast inbox-clearing and short replies, Superhuman or an embedded assistant wins. For thread summaries and calendar-aware drafts, use Copilot (Outlook) or Gemini (Gmail). For high-stakes, carefully-worded messages, draft in Claude or ChatGPT. For work email under a data policy, keep AI inside your Microsoft or Google tenant. Whatever you choose, always read the draft before sending — AI can get a fact, name, or commitment subtly wrong, and email is a record.