# Very impressive: Boris Power praises NanoGPT Speedrun gains

> Original title: Very impressive!!

- Source: Boris Power
- Published: 2026-10-29T08:05:20.000Z
- Bad Influence: https://badinfluence.news/items/zeal0go3mc9r4vugbnwi4txa5
- Original: https://x.com/BorisMPower/status/2115716601672851708

## Summary

OpenAI's Boris Power replies "Very impressive!!" to Herman Brunborg's post. Brunborg says he cut NanoGPT Speedrun from 39.9s to 6.7s, an 83.2% reduction, using retrieval-augmented n-gram hints for rare web content.

## Post

Very impressive!!

## Quoted post @hermanbrunborg

> I improved NanoGPT Speedrun from 39.9s → 6.7s (-83.2%), more than every record since 2025 combined (-81.4%)!
> 
> The web is full of rare, repeated content that the LM can’t memorize in time. I solve this with retrieval-augmented n-gram hints🧵

https://x.com/hermanbrunborg/status/2115502130350227798