Jetwriter AI
Browser-extension writing assistant that learns your style and auto-drafts Gmail replies
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jetwriter.aiAbout Jetwriter AI
Jetwriter AI is a browser-extension writing assistant that works on any site, with unusually deep Gmail integration as its differentiator. Rather than only offering a rewrite box, it reads your past emails and drafts to learn your style, then auto-drafts replies in your Gmail inbox whenever a thread needs one — and it decides which threads do, marking the rest as no reply needed. That triage step is the part that separates it from generic 'improve this text' extensions, because the work it removes is deciding what to answer, not just phrasing the answer. Beyond email it covers grammar correction, translation, chat-with-page, research and general writing, and it runs on frontier models from three vendors rather than one, letting the user pick between OpenAI, Google and Anthropic models depending on the task. There are web and mobile apps alongside the extension, plus voice input, live web access and file attachments on paid plans. The pricing is aggressive for the model access on offer: the free tier gives 15 regular-model responses a month with no advanced-model access, while the paid tiers meter advanced-model responses and leave regular-model use unlimited — a structure that suits people who write constantly but only occasionally need a frontier model. Gmail auto-draft replies are capped per day rather than per month.
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Brand-voice-trained writing for teams shipping marketing copy at volume, not one-off drafts.
Key Features
Jetwriter AI Pros & Cons
✅ Pros
- +Triages which emails need a reply, not just how to phrase one
- +Unlimited regular-model use on paid plans with metering only on frontier models
- +Multi-vendor model access at a lower price than most single-vendor assistants
⚠️ Cons
- −Free tier's 15 responses a month is barely enough to evaluate it
- −Deepest integration is Gmail-specific; other mail clients get less
- −Reading your entire email history is a meaningful privacy decision
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