Opus 4.5 is just a few days over a month old. Boris would have had access to that for a while before its release though.

Boris is someone that is employed by Anthropic and has a massive stake in them going public, standing to make millions.

They are by definition a biased source and should not be referenced as such.

	▲	simonw 3 hours ago \| parent [-]
		Nobody here claimed that Boris wasn't a biased source. I do however think he is not an actively dishonest source. When he says "In the last thirty days, I landed 259 PRs -- 497 commits, 40k lines added, 38k lines removed. Every single line was written by Claude Code + Opus 4.5." I believe he is telling the truth. That's what dogfooding your own product looks like! https://twitter.com/bcherny/status/2004887829252317325