Worthwhile Chat

Generative AI, built by and for non-profits

Annotated user interface of a chat application
Worthwhile Chat interface (for illustrative purposes)

What Chat Can Do

Through listening to and working with 1,000s of charities, we've identified some consistent uses of AI by charities. We use this insight to create charity-specific features so you can benefit from your sector peers’ explorations and create useful outputs using AI. The list below is just an example, and will continue to grow as new use cases emerge.

📑

Summarise documents

Engage with Chat to pull out research insights or learn more about a fund to check if your charity is a good fit.

🗞️

Draft a volunteer newsletter

Let Chat help you draft a newsletter for your volunteer community, outlining activities and achievements.

💡

Generate service delivery ideas

Describe the impact you seek and use Chat to brainstorm new ways to meet community needs.

🤝

Explore partnerships

Work with Chat to help you think through potential partnerships that align with your mission and values.

About Chat

Worthwhile Chat is being developed by CAST and The Developer Society. It works much like Copilot, Gemini, Claude and ChatGPT. Unlike these general tools, Worthwhile Chat is specifically designed for the non-profit sector, supporting you with common charity tasks.

If you have a question about Worthwhile Chat, please email us.

Privacy-centric

Your data stays secure and private, with full control over what gets shared.

Community-led

Built by and for non-profits. Features determined by you and peers.

Protected data

Your data stays in the UK and EU, never used for training. Delete data anytime.

Ethical

Built on principles that put your mission and communities first, not profit margins.

Transparent

Clear pricing, no hidden costs. Regular updates on how the system works.

Trusted creators

Being built by CAST and Dev, trusted by 1,000s of UK charities.

Indicative Pricing

Development costs for Chat are covered by grants from partners in Trusts and Foundations. We are aiming to secure further funding to cover the ongoing costs of technical infrastructure, computation, ongoing research, feature development and community support. We are also exploring subscription fees to help pay for these costs. We’ll always be transparent about our costs.

Below are estimated monthly subscription fees for each plan. We're aiming for the yearly cost to be 25% cheaper than monthly costs. Each plan will include a two-week free trial. We are also exploring tiered pricing to align with charity income levels.

Starter Plan
£4/mo
Perfect for trying out the platform or occasional use at an affordable price.
Includes:
Access to Chat
Search AI chats
15 prompts per day
5 Knowledge Bases
3 Projects
Pro Plan
£16/mo
Perfect for daily use and organising chats into multiple projects.
Includes:
Access to Chat
Search AI chats
More usage*
Unlimited Knowledge Bases
Unlimited Projects
Team Plan
£16/mo (per user)
Perfect for teams using AI together on projects. Minimum three people.
Includes:
Access to Chat
Search AI chats
More usage*
Unlimited Knowledge Bases
Unlimited Projects
Shared Prompt Library
Connect to OneDrive
Connect to Google Drive
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
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
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
More usage*

To ensure optimal performance for all users, 'Pro' and 'Team' plans are subject to our Fair Usage Policy.

  1. High-Complexity Reasoning: Access to top-tier models (e.g. Claude Sonnet 4.5) is limited to 50 interactions per rolling 24-hour period.
  2. Standard Interactions: Access to our high-efficiency models is unlimited for human-speed interaction.
  3. Excessive Use: Accounts exceeding 500 interactions per day or showing patterns of automated access (botting) will be throttled or temporarily suspended.
  4. Model Availability: We reserve the right to dynamically route queries to different model providers (e.g. Anthropic, OpenAI, Open Models) based on server load and query complexity to maintain service uptime.

Register Interest

Chat is currently in development. We’re working on the technical foundation and user experience. We hope to make Chat available to the sector in Q2 of 2026.

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