HMM:

I haven’t noticed GPT showing any bias — but it wouldn’t for what I use it for. I keep GPT in what I call “sandbox mode,” where it helps me edit longer pieces for structure and flow, but never for content.

For facts and news, I haven’t found anything better than Grok. On the other hand, Grokipedia is riddled with obvious factual errors. As always, caveat emptor and double-check every LLM’s work.