Short answer: Yes. ChatGPT can send emails through its Gmail connector on paid plans, or via Zapier/Make integrations for Outlook and other platforms. The setup takes 10-15 minutes and works reliably for one-off sends. For UK small businesses, whether it’s the right choice comes down to tone and setup preference — not capability.
Full disclosure before we get into this: we run Claudable, a training service focused on Claude Cowork. So we have a horse in the "which AI should you use" race. That said, this guide is written to be genuinely useful even if you end up choosing ChatGPT — there are good reasons to pick either one, and pretending otherwise won’t help you.
What ChatGPT actually does with email
At its core, ChatGPT is a chat interface. Out of the box, without any setup, it drafts emails when you ask — you paste context, describe what you need, and copy the draft into your email client. That’s the same baseline every major AI chat tool offers, including Claude and Gemini.
On paid plans (ChatGPT Plus at £16.99/month, Team at £25/user/month), the added capability is direct email actions via connectors. The main ones as of September 2026:
| Platform | ChatGPT integration | What it can do |
|---|---|---|
| Gmail | Official OpenAI connector (paid plans) | Read inbox, draft in-context replies, send with confirmation |
| Outlook | Via Zapier or Make (custom setup) | Trigger sends from ChatGPT output; parse incoming email |
| Apple Mail / others | No native integration | Draft-and-copy workflow only |
The Gmail connector works well. Setup is a five-minute OAuth flow, and once done you can ask ChatGPT things like "reply to the last message from Sarah confirming the meeting time" and it does exactly that.
What ChatGPT is good at (honestly)
- Speed. Draft times are consistently fast, particularly for shorter emails.
- Massive plugin ecosystem. If you need integration with a specific tool that’s not mainstream (industry-specific CRM, sector-specific software), ChatGPT’s plugin library is broader than Claude’s.
- Familiarity. Most people have used ChatGPT at some point, so team adoption is often faster than teaching a new tool from scratch.
- Custom GPTs. You can build a reusable "GPT" for your email style and share it with your team — a genuinely useful feature.
What ChatGPT is less good at (also honestly)
- Default tone can feel American. Without prompting to the contrary, ChatGPT’s output tends toward the enthusiastic, exclamation-heavy register that reads oddly in a UK business context. You can prompt around this, but it’s an extra step every time.
- More "AI-sounding" out of the box. Phrases like "in today’s fast-paced business world" and "seamlessly" appear more often in ChatGPT drafts than Claude ones. Again, you can prompt them away, but the default is more corporate-generic.
- Voice guides are less integrated. ChatGPT’s Projects/GPTs work well but the workflow for reusing a voice guide across many chats is fiddlier than Claude’s Projects setup.
- Long-context work is weaker at the free/entry tiers. Claude’s free tier handles longer documents better; ChatGPT’s free tier drops context faster.
ChatGPT vs Claude for UK business email specifically
Both cost roughly the same (£16-17/month at the entry paid tier). Both can send emails via connectors on paid plans. Both handle the same core tasks: drafting, personalisation, thread summarisation, bulk sends.
The differences are qualitative:
| Consideration | ChatGPT | Claude Cowork |
|---|---|---|
| Default tone for UK business | More American, needs prompting | More neutral, less prompting needed |
| British English by default | Sometimes drifts to US spelling | Handles UK spelling reliably |
| Voice guide workflow | Via GPTs (extra step to set up) | Via Projects (built-in) |
| Long-document context | Good on paid tiers | Very strong (1M tokens on Fable 5.1) |
| Plugin/connector ecosystem | Broader | Growing but narrower |
| Custom automations | Custom GPTs | Projects + Skills |
| Entry price (paid tier) | £16.99/mo (Plus) | £16/mo (Pro) |
When ChatGPT is genuinely the better choice
Yes, we run a Claude training service — and there are still situations where ChatGPT is the better fit:
- Your team is already deep in the OpenAI ecosystem (using DALL-E, GPT-4 API, custom GPTs)
- You need a specific plugin that exists in ChatGPT’s ecosystem but not Claude’s
- You’re building highly customised workflows via the OpenAI API and want everything in one vendor
- Your team is comfortable with ChatGPT already and switching tools has a real cost
When Claude tends to win for UK email work
- You’re a UK business writing to UK clients and want tone-appropriate output without heavy prompting
- You work with long documents (contracts, tax returns, technical specs) and need reliable multi-doc reasoning
- You want a simpler, more consistent workflow rather than the maximum number of features
- You’re building shared team resources (voice guides, prompt libraries) that need to work across a whole team without heavy admin
The honest verdict
Both tools can send emails. Both cost about the same. Both are safe to use for legitimate business communications on their paid plans. For UK small businesses specifically, we recommend Claude — because the default output tends to feel less like AI wrote it, and the Projects feature makes voice guides genuinely portable across a team. For teams already invested in OpenAI, ChatGPT is a perfectly reasonable choice and switching probably isn’t worth the friction.
If you want to compare directly: we’ve written a longer breakdown at Claude Cowork vs ChatGPT for UK Businesses. Or read our companion piece on Can Claude Send Emails? which covers Claude’s specific workflow in depth.
Setup: getting ChatGPT sending emails in 10 minutes
If ChatGPT’s the tool for you, here’s the fastest path:
- Sign up for ChatGPT Plus (£16.99/mo)
- Enable the Gmail connector in Settings → Connected apps
- Grant OAuth permissions (you’ll see Google’s standard consent screen)
- Test with a low-stakes ask: "Draft a reply to my last email from [name]"
- Build a custom GPT with your voice guide baked in as instructions
- Share the GPT with your team via the OpenAI Team workspace
That’s the whole setup. From there, it’s the same "learn to prompt well" learning curve any AI tool requires.
Bottom line
Yes, ChatGPT can send emails. It’s a capable, mature tool with a solid Gmail integration on paid plans. Whether it’s the right choice for your business comes down to tone preference, existing tools, and how much team-wide voice-guide portability matters to you. There’s no wrong answer — but if you’re a UK small business asking us, our honest recommendation is Claude first, ChatGPT as backup or specific-use.
Want to see if Claude would fit your business? Try the free 2-minute AI Readiness Quiz and you’ll get a personal report on which tasks are worth automating first.