Description
CauseWriter.ai, built by the nonprofit-focused agency Whole Whale, describes itself as offering "purpose-built AI tools for nonprofit teams." Rather than a single chatbot, it's a collection of free and paid GPT-style tools tuned to nonprofit work: drafting articles, newsletters, social media posts, grant proposals, donor personas, and branded content in an organization's own voice.
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The free tier gives access to a library of pre-built, nonprofit-focused GPTs covering categories like communication, fundraising, marketing, evaluation, and advisory work. Examples on the site include a grant writer GPT, a nonprofit 990-filing analyzer, a mission statement generator, and a donation page analyzer. Free tools require no payment, though some require account login.
Paid tiers add capability rather than just removing limits. A Basic tier, priced at $10 per month, gives higher-limit access to major underlying models (the site lists options spanning OpenAI, Anthropic, and Google model families) plus the full pre-built GPT suite and training resources, with self-guided setup. A Custom Build tier, at $125 per month plus a stated $2,000 setup fee, adds secure GPTs built specifically for a customer's team, access to a wider set of frontier models, a custom "source of truth" database drawing on the organization's own materials, and combined text, image, and video generation, along with team capacity training.
CauseWriter is presented as a specialized alternative to using general-purpose AI chat tools directly, aimed at nonprofit communications, fundraising, and marketing staff who want AI output that already reflects their organization's mission and voice rather than generic copy. The site includes named customer accounts from health and advocacy nonprofits describing use for routine communications, fundraising emails, and donor-facing content, and the product has been referenced in nonprofit AI education contexts, including a cited book chapter on prompt engineering by its creator.
- CategoryAI Writing Assistants
- Pricing ModelFreemium
- DeploymentCloud
- PlatformsWeb
CauseWriter's Core Features
Library of free, pre-built GPTs for nonprofit tasks
Custom content generation: articles, newsletters, social posts, grant proposals
Donor persona and branded content generation in an org's own voice
Nonprofit 990 filing analyzer and donation page analyzer tools
Access to multiple underlying AI model families on paid tiers
Custom "source of truth" database on the Custom Build tier
Combined text, image, and video generation on higher tiers
Team training resources included with paid plans
How to use CauseWriter?
Browse free GPTs: try the pre-built nonprofit tools without payment
Log in: create an account to access tools that require login
Pick a plan: choose Free, Basic ($10/month), or Custom Build ($125/month plus setup) based on needs
Generate content: use a relevant GPT to draft newsletters, grant proposals, or social posts
Customize (Custom Build): work with the team to build a source-of-truth database and team-trained GPTs
Train your team: use included resources to help staff adopt the tools
CauseWriter's Use Cases
- Fundraising content
- Nonprofit social media
- Grant document analysis
- Custom team AI assistant
