In May 2025 we completed our first Custom GPT Challenge, a contest to select and build winning AI assistants from user submitted proposals. A wide variety of organisations submitted many interesting ideas, and we selected these three winners:
Custom GPT Challenge Winners
Winning Submissions
1. Client Contact Assistant
Krispyhouse.com is a London-based property portal and a leader in PropTech - with a user-friendly communication platform that connects landlords and tenants. Their assistant will help identify and message clients based on customised AI insights.
2. Moxie Future-Finder Assistant
Sarah Browne is a seasoned CMO and expert in workplace inclusion. Her AI assistant will provide resources and support to help UK-based midlife women plan and pursue career changes.
3. Newsletter Marketing Assistant
David Sabban has over 18 years experience as a real estate broker in Seattle, WA. His AI assistant will help improve his marketing newsletters and social media.
Selection Criteria
- Impact: The potential organisational and societal benefits of the proposed custom GPT assistant.
- Feasibility: The practicality of integrating a custom GPT with the submitter's existing data sources and software workflows.