Worthwhile Chat

AI for individuals working for non-profits. Good for the cautious beginner taking their first steps with AI, who wants to use AI safely and responsibly.
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Image showing the Worthwhile Chat user interface
Worthwhile Chat - The main interface

A safe place to explore AI

Worthwhile Chat works like Copilot, Gemini, Claude and ChatGPT. Unlike these general-use tools, it's designed for charities and their specific needs.

Charity-focused

Includes ready-made prompts for fundraising, comms and service delivery

Safe to explore

A space to experiment and learn at your own pace. No prior AI experience needed.

Community-led

Created by and for charity professionals, with use cases based on charity needs.

How you'll get access

Development costs for Worthwhile Chat are covered by grants. We hope to secure funding for ongoing costs, including infrastructure, design, engineering and support.

In the future, we may introduce paid plans to help cover costs. If we do, we’ll clearly describe the pricing and terms. As a charity ourselves at CAST, any surplus generated by paid access to Worthwhile Chat is reinvested into our mission and services. We are exploring the following ways to provide access.

Monthly Subscription

This is a common approach, where you pay for different levels of access. For example a Starter Plan, Pro Plan and Team Plan.

Credit-Based

A pay-as-you-use model. You start by adding in credit. Each time you use Worthwhile Chat, your credits go down.

Sponsored Seats

A model we’re currently trialling with Deloitte UK. An initiative that pays for a number of sponsored seats. Read more.

Monthly
Yearly
For individuals
Free Plan
£0/month
For beginners wanting to try out AI in a safe, trusted space.
Includes:
Access to Worthwhile Chat
Search Chats
Charity-specific prompts
Get started
For individuals
Pro Plan
Pricing TBD
For charity staff who want to use AI for everyday tasks.
Includes:
Everything in Free Plan; and
Web search
Create folders (to organise chats)
Get started
For teams
Team Plan
Pricing TBD
For teams of more than 5 people who want more control over the AI they use.
Includes:
Everything in Pro Plan; and
Create a custom prompt library
Select which LLMs to use
Integrations (i.e. OneDrive)
Create custom tools
Get started
Starter Plan
£3/mo
£36/year
Perfect for trying out the platform or lite use at an affordable price.
Includes:
Access to Chat
Search AI chats
15 prompts per day
5 knowledge bases
3 projects limit
Get started
Pro Plan
£12/mo
£144/year
Perfect for daily use and organising chats into multiple projects.
Includes:
Access to Chat
Search AI chats
Unlimited prompts
Unlimited knowledge bases
Unlimited projects
Get started
Team Plan
£12/mo (per user)
£144/year
Perfect for teams using AI together on projects. Minimum three people.
Includes:
Access to Chat
Search AI chats
Unlimited prompts
Unlimited knowledge bases
Unlimited projects
Shared prompt library
Connect to OneDrive
Connect to Google Drive
Get started

Register your interest

Chat is currently in development. We’re working on the technical foundation and user experience. Our latest timeline, last updated 16th June 2026:

  • Phase 1 - March: Moderated Testing (8 people) Done
  • Phase 2 - April: Alpha Testing (20 people) DONE
  • Phase 3 - July: Beta Release (200 people) Planning
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