In The Blink Of AI with Georgie Healy 
About Peter Gostev
Peter Gostev is Head of AI Capabilities at Arena (LMArena), the community platform where users vote in blind tests to rank AI models. He previously served as Head of AI at Moonpig, applying generative AI to customer service and computer vision to greeting-card discovery, and built a large following sharing hands-on tests of frontier models. Gostev began his career in strategy and analytics at Accenture before leading AI strategy at NatWest Group. He created BullshitBench, an open-source benchmark testing whether language models recognise nonsensical questions rather than confidently answering them. On Day One, he discussed how AI models are really judged.
- Talks about
- AI
In conversation.
1 episode
In The Blink Of AI with Georgie Healy In their own words.
“A model can pass every test you write and still produce something that looks completely awful.”
The path so far.
- Now
AI Capability Lead · Arena
- Earlier · Scale-up
Head of AI · Moonpig
- Earlier
Led AI strategy · NatWest Group
- Earlier
Strategy and analytics · Accenture
Sources: ai.engineer
Arena on Day One
Arena (formerly LMArena and, before that, Chatbot Arena) runs a public platform where people compare answers from competing AI models in blind tests and vote…
1 person · 1 episode
Across the network.
In the room with
Spot something wrong? Suggest a correctionUpdated 28 October 2026
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