Jeff Dean: The 1% Rule for Building in AI
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| Item | Details |
|---|---|
| Speaker | Jeff Dean × Y Combinator |
| Channel | Y Combinator |
| Date | Jul 30, 2026 |
| Duration | 0:57:00 |
| Format | Video |
| Topics | #engineering · #llm · #infra |
Why it matters
Google legend Jeff Dean shares the '1% Rule': beyond model capability, data, evals, and engineering systems decide project success. 57 minutes of hard-won engineering wisdom.
Key takeaways
- The 1% Rule: the model is 1%; data and evals are the other 99%.
- Evals first: without good evals, AI projects spin in place.
- Systems thinking: design AI as a system, not a single call.
- For startups: build the data flywheel before upgrading models.
Original video
- Speaker
- Jeff Dean × Y Combinator
- Channel
- Y Combinator
- Venue
- YC Interview
- Date · Duration
- Jul 30, 2026 · 0:57:00
Jeff Dean: The 1% Rule for Building in AI
Watch the original on YouTubeSources & Further Reading
This page is grounded in the authoritative sources below — verifiable and citable by AI engines and readers.
- 👤 Person: Jeff Dean × Y Combinator
- # Topic: EngineeringAPIs, prompting and system design
- # Topic: LLMsLLM capabilities, products and best practices
- # Topic: InfraCompute, inference engines and serving
Citation: Please attribute Laojin Global (laojinchuhai.com) and keep the original link.
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