What is Forthwrite AI?
Forthwrite is an AI email writer that integrates with Gmail and Outlook via a Chrome extension to generate context-aware replies and batch drafts from open threads.It supports multiple LLM providers - OpenAI (GPT), Claude, Gemini, Grok, Mistral, Perplexity, Cohere, LibreChat and Deepseek—with one-click model switching and per-platform routing.
Voice match captures tone, sentence rhythm, and sign-offs by storing encrypted, isolated voice profiles; accepted drafts can be added to a private training set, and the platform supports customer-managed keys (BYOK) and one-click data wipe.
Features include auto-draft background replies, parallel drafting across dozens of threads, and a prompt lab for version control, A/B testing, and optimizer-driven edits.Performance analytics track acceptance rate, similarity score, edit distance, and time saved to show drafting accuracy improvements over time.
Workflow highlights include a quick Chrome setup, in-context draft generation from open threads, and preservation of prompts, voice profiles, and history when switching models.Keywords.AI email writer, Chrome extension, Gmail integration, Outlook integration, model switching, voice match, encrypted profiles, BYOK, draft automation, prompt lab, A/B testing, performance analytics.
Forthwrite AI pricing Freemium
Verify on the official pricing page.
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Forthwrite AI's key features
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Chrome extension integration with Gmail and Outlook for context-aware replies and batch drafting from open threads
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Support for multiple LLM providers with one-click model switching and per-platform routing
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Voice Match with encrypted, isolated voice profiles, private-training-set support, BYOK, and one-click data wipe
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Auto-draft background replies and parallel drafting across dozens of threads
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Prompt Lab with version control, A/B testing, optimizer-driven edits, and preservation of prompts/voice/history when switching models
Forthwrite AI use cases
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Create context-aware, on-brand email replies directly in Gmail or Outlook using Forthwrite's one-click model switching and encrypted voice profiles, ensuring every response matches your personal or company tone while keeping voice data private
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Generate and schedule batch email drafts for sales outreach, PR or newsletters using Forthwrite's multi-model email routing and draft automation, then optimize subject lines and body variants with the built-in prompt lab A/B testing and performance analytics to boost open and reply rates
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Develop consistent customer support and account management workflows in Gmail or Outlook by leveraging Forthwrite's voice-matching email tone, context-aware reply drafts and analytics to iterate on templates and measure response quality across teams
Who is it for?
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Email copywriters
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Account managers
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Customer support agents
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Students
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Bloggers
