Validating Real-World Usefulness of AI Models - Julia Kasper @_wearedevs
Validating Real-World Usefulness of AI Models - Julia Kasper  @_wearedevs
Uploaded August 2026 | Updated September 2026, 2 weeks ago
In this episode of Coffee with Developers, Julia Kasper from the VS Code team shares how AI models make their way into GitHub Copilot and VS Code. She explains how new models are evaluated, tested, and optimized before launch, why different models excel at different coding tasks, and how developers can choose the right model for their workflow.

The conversation also explores token efficiency, bringing your own models, AI-powered development, open source contributions, and how AI is changing the way developers work with VS Code.

00:00 Introduction
00:14 Meet Julia
00:58 VS Code and GitHub
02:54 Copilot Models
06:53 Token Efficiency
10:38 Local Models
13:32 Model Evaluation
17:00 Community Contributions
20:07 Closing Remarks
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Validating Real-World Usefulness of AI Models - Julia Kasper

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