This whole Fable 5 controversy will look quite silly once China releases a comparable model in six months.

cobolcomesback 5 minutes ago | parent | next [-]

How so? The fact that China is going to launch a comparable model soon is the whole point of what’s happening now. Everyone knows there are going to be open models soon that have the same capabilities - Anthropic has literally said so. The restrictions now are to buy time to patch the security issues before those Chinese models are made available to the whole world.

▲

sigmar 5 hours ago | parent | prev | next [-]

Fable/mythos are the first models from anthropic that hide 100% of reasoning tokens. So it seems to me like we're about to get a lot more data about to what extent Chinese model progress has been a consequence of distillation techniques.

▲

tristanj 4 hours ago | parent [-]

This isn't correct, Claude hasn't displayed the raw chain of thought for any of the Claude 4 series models, which were released in May 2025. Sonnet 4.6/Opus 4.8 only display a summarized chain of thought, which is produced by a secondary model. Fable displays its summarized chain of thought in the same manner.

The thinking traces disappeared because Anthropic changed them to be hidden by default. The rationale for hiding it was that most people don't look at the thinking traces https://news.ycombinator.com/item?id=47664442 . You can reenable thinking traces in Claude code settings with the flag showThinkingSummaries: true.

	▲	Barbing 27 minutes ago \| parent \| next [-]
		Hidden by default should make it easier to identify who’s scraping even those summarized CoTs, I figure. Also figure it’s very expensive to summarize every single chat on the service.
	▲	sigmar 3 hours ago \| parent \| prev [-]
		Qualified it with "100%" because claude4 models show the first few lines of the chain of thought: >On Claude 4 models, the first few lines of thinking output are more verbose, providing detailed reasoning that's particularly helpful for prompt engineering purposes. Claude Mythos Preview summarizes from the first token, so its thinking blocks do not show this verbose preamble. https://platform.claude.com/docs/en/build-with-claude/extend...

▲

FergusArgyll 3 hours ago | parent | prev | next [-]

Google can't do it, OpenAI didn't do it, Meta didn't do it etc etc.

Why do you think China will?

I am quite certain the gap will only grow

	▲	skeledrew an hour ago \| parent \| next [-]
		DeepSeek took everyone by surprise with R1. I'm pretty sure they and/or others will do the unexpected again. Not as if the US has a monopoly on awesome talent.
	▲	danieltanfh95 2 hours ago \| parent \| prev [-]
		That's a skill issue, not a technology issue.

▲

suggala 6 hours ago | parent | prev [-]

It would take less than 1 month if not for the restrictions. One of the reason is they might be using distilling to achieve the parity.

	▲	cyanydeez 5 hours ago \| parent [-]
		oh, do you not pay attention to the hardware they're allowed to buy from nvidia? At this point, it's more just being nerfed than being able to do the magical training stuff.