ForthWrite

Captures your unique tone, sentence rhythm, and sign-offs from your real sent emails to generate personalized drafts.

Allows version control, A/B testing of prompts, and AI-optimized prompt suggestions based on your data.

Provides metrics such as acceptance rate, similarity score, edit-distance, and time saved to track improvement over time.

Automatically drafts replies in the background as emails arrive and can batch draft dozens of threads in parallel.

Supports nine major AI models including OpenAI, Claude, Gemini, Grok, and others, letting users choose based on tone, reasoning, or cost.

Reads the full email thread including forwards and nested intros to address every open question in replies.

Users can supply their own API keys from major AI providers for cost savings and data privacy.

Includes shared team personas, prompt libraries, team analytics dashboards, admin management, and enterprise-grade security options.