Fine-Tuning the Agent Stack: Harnesses, Evals, and What It Takes to Reach Production

​As AI agents move beyond demos and into real-world workflows, performance depends on far more than the underlying model. The surrounding harness, tool access, feedback loops, and evaluation systems increasingly determine whether an agent is reliable enough to deploy.

Join Prolific and AI Circle in London for an intimate conversation with researchers, engineers, and technical leaders exploring how teams are fine-tuning agentic systems and evaluating them under real-world conditions.

The discussion will examine how to design stronger agent harnesses, build evaluations that capture long-horizon behavior, identify meaningful failure modes, and use high-quality human feedback to close the gap between promising prototypes and dependable production systems.

Expect a technical, candid conversation among peers, Prolific, and AI Circle community members, followed by drinks light bites, and networking with the people actively building and evaluating the next generation of AI agents.

Agenda

• ​6:00 PM - 6:45 PM Check in, Drinks & Networking

• ​7:00 PM- 8:00 PM Expert Panel & Spotlight

• ​8:00- 9:00 PM Food & Informal Breakouts
  
  
  Location disclosed after RSVP is confirmed
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  About the hosts:
  Prolific powers high-quality human data for model evaluation and training. Learn more about Prolific.
  
  AI Circle curates high-agency operators across research, startups, and enterprise. Learn more about AI Circle.