# Elvis Saravia says Anthropic refuses most kernel and LLM optimization tasks

> Original title: Also, it looks like Anthropic doesn't want you to build RSI?!

- Source: Elvis Saravia
- Published: 2026-11-09T20:50:00.000Z
- Bad Influence: https://badinfluence.news/items/gxrpmxlzwm2kkazk0yyfd5b4j
- Original: https://x.com/omarsar0/status/2119895303201657333

## Summary

Elvis Saravia says even Opus 5.5 refuses most kernel and LLM optimization tasks, and he concludes that open models are the only way forward. He also jokes that Anthropic does not want users to build recursive self-improvement (RSI).

## Post

Also, it looks like Anthropic doesn't want you to build RSI?! 

On a more serious note, even with Opus 5.5, kernel and LLM optimization tasks get refused most of the time. 

Open models are the only way!

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWtg-l1X0AALN3k.jpg&mode=thumb&exp=1794528000&sig=760b50c58728cf14)

## Quoted post @claudeai

> Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.
> 
> They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.

https://x.com/claudeai/status/2119867114450268322