📖 The AI Tool Bible

AI email writer

Editorial picks for "best ai email writer".

13 tools

All Writing →

ProWritingAid

Writing · Multi-model (proprietary + LLM-assisted features)

AI-powered writing coach and manuscript editor built for fiction authors and long-form writers.

Freemium· Free: Free · Premium: €3000 · Premium Pro: €3600 · Lifetime Premium: €39900 · Lifetime Premium Pro: €69900fiction-editingmanuscript-analysis

Jasper

Writing · Multi-model (OpenAI / Anthropic via API)

Marketing-team-focused AI copywriter and content workflow.

Paid· Pro: $69 · Business: custom pricingmarketing copybrand voice

Copy.ai

Writing · Multi-model (OpenAI / Anthropic via API)

Templated AI copywriter for blogs, ads, and outbound emails.

Freemium· Chat: $29/mo · Growth: $1,000/mo · Expansion: $2,000/mo · Scale: $3,000/moadssocial

Rytr

Writing · Undisclosed

Budget AI writing assistant covering 40+ short-form copy use cases with a usable free tier.

Freemium· Free: $0/m · Unlimited: $7.50/m · Premium: $24.16/mshort-form-copyemail-writing

Jetwriter AI

Writing · Multi-model (GPT-5, Claude Opus/Sonnet, Gemini Pro)

Browser-based AI writing assistant that lives in Gmail, WhatsApp, LinkedIn, and Outlook and learns your past replies.

Freemium· Elite: $18 /month · Ultra: $39 /monthemail-draftinggrammar-fixing

Jetwriter AI

Writing · Multi-model (GPT-5, Claude Opus/Sonnet, Gemini Pro)

Multi-model AI writing assistant that lives inside Gmail, LinkedIn, WhatsApp Web, and any other tab.

Freemium· Elite: $18 · Ultra: $39email-draftingreply-generation

Marblism

Roster of pre-built AI 'employees' that handle email, social, sales, SEO and reception tasks on a flat monthly fee.

Paid· From $24/mo (annual) to $44/mo (monthly); 7-day money-backemail-triagesocial-media-posting

PaletteBrain

Writing · OpenAI (BYO key); Azure OpenAI supported

macOS keyboard launcher that pipes selected text in any app to ChatGPT via your own OpenAI key.

Paid· Personal $29 one-time (early); Family $99 one-time; Team custom. BYO OpenAI key.inline-rewritingai-shortcuts

Lex

Writing · Multi-model (GPT-4.1, Claude)

Google Docs-style writing app with an LLM sidekick wired into every sentence.

Freemium· Free tier; Lex Pro paid (price not public); Teams add-onlong-form draftingeditorial feedback

RapidTextAI

Writing · GPT-5, Claude, Grok, Gemini, Deepseek

Budget AI copywriting workspace with 45+ templates for blogs, ads, and ecommerce listings.

Freemium· Free 100-copy trial; Pro $10/mo or $100/yrblog-writingproduct-descriptions

Artisan

Autonomous AI BDR that finds leads, personalises outreach and books meetings

Paid· Team / Scale / Enterprise — no public pricing; sales-scoped by monthly leads contacted (~2,500 for Team, ~6,000 for Scale, custom for Enterprise). No public free tier; 'Start free' CTA leads to sales.AI-driven outbound BDR replacementAutomated cold email sequencing

GenAI Agents (NirDiamant)

Agents · Framework-agnostic; most notebooks default to OpenAI GPT-4 class models, with Ollama and local model examples included.

50+ Jupyter tutorials for building GenAI agents, from a simple chatbot to multi-agent systems.

Free· Free and open source (Jupyter notebooks). Author sells an optional paid course at diamant-ai.com and runs a free newsletter; the repository itself has no paywall.LangGraph multi-agent workflowCustomer support agent

Sierra

Agents · Undisclosed multi-model (frontier LLMs orchestrated behind Sierra's Agent OS)

Conversational AI agents for enterprise customer experience.

Enterprise· Basic: $10 · Pro: $20 · Enterprise: Contact salesEnterprise customer support agentVoice IVR replacement