Skip to main content
📖 The AI Tool Bible

AI grant proposal writer

Editorial picks for "ai grant writing".

37 tools

All Writing
Spell preview image
Spell logo

Spell

Writing
6.8

AI-native document editor that drafts and rewrites in natural language, pitched as a Google Docs alternative.

Freemium· Free tier; Pro $20/mo; Team $40/user/moai-draftingdocument-editing
Sudowrite preview image
Sudowrite logo

Sudowrite

Writing · Multi-model (OpenAI / Anthropic via API)
8.2

Fiction-writing AI with story bibles, brainstorming, and pacing tools.

Paid· Hobby & Student: $10 · Professional: $22 · Max: $44fictionnovels
Writer preview image
Writer logo

Writer

Writing · Palmyra (in-house)
8.2

Enterprise generative AI platform built around in-house Palmyra LLMs for regulated, brand-consistent content.

Enterprise· Starter: Free · ENTERPRISE: Contact salesenterprise-writingbrand-voice
NovelCrafter preview image
NovelCrafter logo

NovelCrafter

Writing · Multi-model (BYO key: OpenAI, Anthropic, Gemini, Mistral, OpenRouter, Ollama)
8.0

Bring-your-own-key novel-writing workspace with a wiki-style codex and multi-model AI assistance.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesnovel-writingworldbuilding
ProWritingAid preview image
ProWritingAid logo

ProWritingAid

Writing · Multi-model (proprietary + LLM-assisted features)
8.0

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
Reflect preview image
Reflect logo

Reflect

Writing · OpenAI GPT-4 + Whisper
8.0

Networked note-taking app with GPT-4 and Whisper baked into the writing surface.

Paid· Free: Free · Pro: $20 · Business: $35note-takingvoice transcription
STORM preview image
STORM logo

STORM

Writing · Multi-model (via LiteLLM)
7.5

Stanford's open-source research agent that turns a topic into a Wikipedia-style article with citations.

Free· Hosted demo free; self-host open-source (pay your own LLM/search API)long-form researchwikipedia-style articles
Copy.ai preview image
Copy.ai logo

Copy.ai

Writing · Multi-model (OpenAI / Anthropic via API)
7.2

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
Hypotenuse AI preview image
Hypotenuse AI logo

Hypotenuse AI

Writing · Multi-model
7.1

AI-powered Product Experience Management for ecommerce catalogs at scale.

Paid· Free trial available; paid plans gated, contact salesproduct-descriptionscatalog-enrichment
QuillBot preview image
QuillBot logo

QuillBot

Writing · Undisclosed (proprietary)
7.1

AI paraphrasing and grammar suite that grew into an all-in-one writing toolkit.

Freemium· Free: €0 · Premium: €8,33 · Team Plan: ?paraphrasinggrammar-check
Rytr preview image
Rytr logo

Rytr

Writing · Undisclosed
7.1

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
editGPT preview image
editGPT logo

editGPT

Writing · ChatGPT (GPT-4 / GPT-3.5)
7.0

Browser extension that turns ChatGPT into a tracked-changes proofreader for your documents.

Freemium· Free tier; Premium around $9.99/moproofreadingcopy-editing
Jetwriter AI preview image
Jetwriter AI logo

Jetwriter AI

Writing · Multi-model (GPT-5, Claude Opus/Sonnet, Gemini Pro)
7.0

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
Postwise preview image
Postwise logo

Postwise

Writing
7.0

AI ghostwriter and scheduler for Twitter/X, LinkedIn, and Threads built around viral-post patterns.

Paid· Basic: $37 · Boss: $59 · Unlimited: $97social-media-poststwitter-threads
Jetwriter AI preview image
Jetwriter AI logo

Jetwriter AI

Writing · Multi-model (GPT-5, Claude Opus/Sonnet, Gemini Pro)
6.9

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

Freemium· Elite: $18 · Ultra: $39email-draftingreply-generation
Marblism preview image
Marblism logo

Marblism

Agents
6.9

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 preview image
PaletteBrain logo

PaletteBrain

Writing · OpenAI (BYO key); Azure OpenAI supported
6.9

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
QuickCreator preview image
QuickCreator logo

QuickCreator

Writing · Gemini
6.9

Multi-agent SEO blog writer aimed at solo founders who want to rank on Google and get cited by ChatGPT.

Freemium· Personal: $29 · Professional: $129 · Plus: $249 · Enterprise: Customseo-blog-writingcontent-strategy
SciSpace preview image
SciSpace logo

SciSpace

RAG · Multi-model
6.9

AI research assistant that turns dense PDFs and literature reviews into searchable, citation-backed answers.

Freemium· Premium: $20 · Advanced: $90 · Max: $200literature-reviewchat-with-pdf
ShyEditor preview image
ShyEditor logo

ShyEditor

Writing · Multi-model (GPT-4, Grok)
6.9

AI-native writing environment that bolts an assistant, citation manager, and knowledge base onto a distraction-free markdown editor.

Freemium· Free Basic (20 AI credits/mo, 100MB); Pro $10/mo (500 credits, 5GB)long-form-writingacademic-writing
Yomu AI preview image
Yomu AI logo

Yomu AI

Writing · Multi-model (GPT-4o/5, Claude Sonnet/Opus, Gemini Flash)
6.9

AI writing assistant built specifically for students and academic researchers.

Freemium· Free tools; Pro $11/mo, Ultra $18/mo (annual); $499 lifetimeacademic-writingessay-drafting
Character.AI preview image
Character.AI logo

Character.AI

Writing · Proprietary Character.AI models
6.8

Conversational roleplay platform with millions of user-created AI personas.

Freemium· Free tier; c.ai+ around $9.99/moroleplaycreative-writing
DocGPT AI Writer for Docs preview image
DocGPT AI Writer for Docs logo

DocGPT AI Writer for Docs

Writing · Multi-model (GPT, Claude, Gemini)
6.8

Google Docs sidebar add-on that drops GPT-class drafting, rewriting, and summarization straight into your document.

Freemium· Starter: €3.40 · Standard: €6.80 · Plus: €10.55 · Enterprise: Contact saleslong-form draftingrewriting
GPTLocalhost preview image
GPTLocalhost logo

GPTLocalhost

Writing · Bring-your-own (Ollama, LM Studio, llama.cpp, Foundry Local, etc.)
6.8

Run local LLMs directly inside Microsoft Word without sending text to the cloud.

Freemium· Free: Free · Monthly: ? · Lifetime: ?private draftingoffline writing assistant
Lex preview image
Lex logo

Lex

Writing · Multi-model (GPT-4.1, Claude)
6.8

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
Nexus AI preview image
Nexus AI logo

Nexus AI

Writing · Multi-model
6.8

All-in-one AI workspace bundling writing, image, voice, and chat into a single subscription.

Freemium· Free 500 words/mo; Premium $18-25/mo; Ultimate $35-50/mo (30% off annual)ai-writingimage-generation
Persuva preview image
Persuva logo

Persuva

Writing
6.8

AI copy and landing-page generator built specifically for dropshippers running Shopify stores.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesdropshipping copyproduct pages
RapidTextAI preview image
RapidTextAI logo

RapidTextAI

Writing · GPT-5, Claude, Grok, Gemini, Deepseek
6.8

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
Socialsonic preview image
Socialsonic logo

Socialsonic

Writing
6.8

AI-powered LinkedIn growth assistant for personal-brand content, scheduling, and engagement.

Freemium· 7-day free trial, no credit card; paid plans on /pricinglinkedin-postspersonal-branding
Wordtune preview image
Wordtune logo

Wordtune

Writing · AI21 Labs (Jurassic-family) + multi-model
6.8

AI rewriting and paraphrasing assistant from AI21 Labs that polishes tone, summarizes long content, and drafts in your voice.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesparaphrasingtone-shifting
WriteMage preview image
WriteMage logo

WriteMage

Writing · OpenAI ChatGPT (BYO key or managed)
6.8

Native macOS and iOS overlay that drops ChatGPT into any app, Spotlight-style.

Freemium· Beta free; Lifetime $58.99; Basic $10/mo; Personal $11.87/mo (managed API)writing-assistantmacos-overlay
PulsePost preview image
PulsePost logo

PulsePost

Writing
6.6

AI-assisted blog platform that spins up SEO-optimized, multilingual company blogs on autopilot.

Paidbusiness-bloggingseo-content
Qurate preview image
Qurate logo

Qurate

Writing
6.5

AI-powered semantic search engine for finding contextually relevant quotes across a 500K+ corpus.

Freemium· Free Plan: $0/forever · Monthly: $5/month · Annual: ?quote-searchspeechwriting
FigureLabs preview image
FigureLabs logo

FigureLabs

Agents
6.4

An AI agent that drafts scientific illustrations for researchers and publications.

Freemium· Free: $0/mo · Starter: $12 · Plus: $35 · Pro: $99scientific-illustrationresearch-figures
Apple Notes MCP logo

Apple Notes MCP

MCP Servers

Let Claude read your local Apple Notes over the Model Context Protocol.

Free· Free / open-source (MIT). No hosted service; runs locally on your Mac.Personal knowledge retrieval from Apple NotesSearching decade-old meeting notes during a Claude chat
MCP Filesystem Server logo

MCP Filesystem Server

MCP Servers

Reference MCP server that gives Claude, Cursor, and other MCP clients scoped read/write access to your local filesystem.

Free· Free and open source (MIT). Self-hosted; no vendor cost.Give Claude Desktop scoped access to a code repoLet Cursor or VS Code agents edit project files via MCP
Slack MCP Server logo

Slack MCP Server

MCP Servers

Archived reference MCP server that lets Claude and other MCP clients read and post in a Slack workspace via a bot token.

Free· Free / open-source (MIT). Requires a Slack workspace and a Slack bot token; Slack itself is free/paid.Channel triage and summarisationAutomated thread digests