I've seen a number of claims that it's 10T or 6T paramètres and MoE, but without sources. Simon Willison has some good points about why it certainly feels big:
simonwillison.net/2026/Jun/9/c...
I didn’t have early access to today’s Claude Fable 5 release, but I’ve spent the past ~5.5 hours putting it through its paces. My initial impressions are that this is …