ForthWrite is an innovative AI-powered writing assistant designed to draft replies in your authentic voice directly inside popular platforms like Gmail, Outlook, and LinkedIn. Moving beyond generic AI templates, ForthWrite utilizes a closed-loop voice matching system where every manual edit you make serves as a training signal, ensuring drafts continually improve and align closer to your natural writing style over time.
Built for productivity, the tool lets you instantly trigger a "Generate draft" action within any active thread. Paid plans unlock advanced capabilities such as Pro auto-draft, batch processing, and a dedicated Prompt Lab. Additionally, ForthWrite offers robust flexibility through Bring-Your-Own-Key (BYOK) support across 9 different AI providers. Getting started is easy with a free tier offering 10 drafts per week (requiring no credit card or API key) alongside an included 14-day Pro trial.
ForthWrite functions directly inside Gmail, Outlook, and LinkedIn, allowing you to generate and draft replies seamlessly within your existing workflows.
ForthWrite uses a closed-loop voice matching system. Every time you edit a generated draft, that modification acts as a training signal, helping the AI get closer to your personal writing style over time.
Yes, the free tier includes 10 drafts per week with no credit card or API key required, and it also comes with a 14-day Pro trial.
The Pro version unlocks features such as auto-drafting, batch processing, and the Prompt Lab, along with BYOK (Bring-Your-Own-Key) support across 9 providers.

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