ForthWrite

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AI-powered email writing assistant that generates personalized replies matching your voice and tone.

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Overview

ForthWrite is an AI email writer that integrates with Gmail, Outlook, and LinkedIn to generate context-aware responses in your unique voice. It learns from your sent emails to improve tone matching and offers features like auto-drafting, batch drafting, and performance analytics.

Updated Jul 13, 2026.

Key Features

Voice Match

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

Prompt Lab

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

Performance Analytics

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

Auto-Draft and Batch Drafting

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

Multi-Model Support

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

Context-Aware Replies

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

Bring Your Own Key (BYOK)

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

Team and Enterprise Features

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

Pros

Generates email drafts that closely match the user's personal writing style and tone.
Supports multiple AI models allowing customization based on user preference for tone or reasoning.
Offers auto-drafting and batch drafting to save time and increase email productivity.
Includes performance analytics and coaching to improve email writing over time.
Provides a free plan with voice matching and 10 drafts per week without requiring an API key or credit card.

Cons

Free plan limits users to 10 drafts per week and lacks advanced features like auto-drafting and analytics.
Setup requires connecting Gmail or Outlook accounts and optionally managing API keys for BYOK.
Some advanced features like team management and enterprise security require higher-tier plans and minimum seat counts.
Users need to edit drafts initially to train the AI for better voice matching, which may require time and effort.
The tool is limited to Gmail and Outlook on the web, excluding desktop or mobile email clients.

Pricing

ForthWrite pricing plans
Plan	Price	Highlights
Free	$0 per month	10 AI-generated drafts per week Voice matching from sent emails Works with Gmail and Outlook on the web No API key or credit card required Basic widget UI and keyboard shortcuts
Standard	$15 per month	Unlimited drafts Custom system prompt (persona) Recipient-aware and intent-aware drafting AI coaching with voice-shift reports Voice dictation Email support
Pro	$30 per month	Auto-draft replies in background Batch drafting dozens of threads Drafts improve with edit supervision Performance analytics Prompt Lab with version control and A/B testing Training data export and smart retrieval Premium frontier AI model Priority support
Teams	From $59	All Pro features for every seat Shared team persona and Prompt Lab library Team analytics dashboard Admin seat management and invites 30-day trial, 2 seat minimum
Enterprise	Custom	Includes Teams features plus SSO/SAML SCIM provisioning Audit logs Dedicated account manager Custom contracts and volume licensing

Pricing is collected from the official ForthWrite website and may change. Always confirm with the vendor.

Frequently Asked Questions

Links & Resources

Links and resources for ForthWrite.

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Key Features

Voice Match

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

Prompt Lab

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

Performance Analytics

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

Auto-Draft and Batch Drafting

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

Multi-Model Support

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

Context-Aware Replies

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

Bring Your Own Key (BYOK)

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

Team and Enterprise Features

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

Pros

Generates email drafts that closely match the user's personal writing style and tone.
Supports multiple AI models allowing customization based on user preference for tone or reasoning.
Offers auto-drafting and batch drafting to save time and increase email productivity.
Includes performance analytics and coaching to improve email writing over time.
Provides a free plan with voice matching and 10 drafts per week without requiring an API key or credit card.

Cons

Free plan limits users to 10 drafts per week and lacks advanced features like auto-drafting and analytics.
Setup requires connecting Gmail or Outlook accounts and optionally managing API keys for BYOK.
Some advanced features like team management and enterprise security require higher-tier plans and minimum seat counts.
Users need to edit drafts initially to train the AI for better voice matching, which may require time and effort.
The tool is limited to Gmail and Outlook on the web, excluding desktop or mobile email clients.

Pricing

ForthWrite pricing plans
Plan	Price	Highlights
Free	$0 per month	10 AI-generated drafts per week Voice matching from sent emails Works with Gmail and Outlook on the web No API key or credit card required Basic widget UI and keyboard shortcuts
Standard	$15 per month	Unlimited drafts Custom system prompt (persona) Recipient-aware and intent-aware drafting AI coaching with voice-shift reports Voice dictation Email support
Pro	$30 per month	Auto-draft replies in background Batch drafting dozens of threads Drafts improve with edit supervision Performance analytics Prompt Lab with version control and A/B testing Training data export and smart retrieval Premium frontier AI model Priority support
Teams	From $59	All Pro features for every seat Shared team persona and Prompt Lab library Team analytics dashboard Admin seat management and invites 30-day trial, 2 seat minimum
Enterprise	Custom	Includes Teams features plus SSO/SAML SCIM provisioning Audit logs Dedicated account manager Custom contracts and volume licensing

Pricing is collected from the official ForthWrite website and may change. Always confirm with the vendor.

Frequently Asked Questions

Links & Resources

Links and resources for ForthWrite.

Homepage

forthwrite.ai

Pricing

forthwrite.ai

vs Superhuman

forthwrite.ai

ForthWrite

Overview

Key Features

Voice Match

Prompt Lab

Performance Analytics

Auto-Draft and Batch Drafting

Multi-Model Support

Context-Aware Replies

Bring Your Own Key (BYOK)

Team and Enterprise Features

Pros

Cons

Pricing

Frequently Asked Questions

Links & Resources

Homepage

Pricing

vs Superhuman

Key Features

Voice Match

Prompt Lab

Performance Analytics

Auto-Draft and Batch Drafting

Multi-Model Support

Context-Aware Replies

Bring Your Own Key (BYOK)

Team and Enterprise Features

Pros

Cons

Pricing

Frequently Asked Questions

Links & Resources

Homepage

Pricing

vs Superhuman

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