Anthropic's Claude large language model is powering the majority of complex tasks for Amazon's new Alexa+, sources tell CNBC.

Alexa Plus will start rolling out next month in early access. It's an opt-in service and won't be available to everyone through an over-the-air update in March.

Amazon is finally launching the long-awaited generative AI version of Alexa — Alexa Plus — that, if all goes well, will take away much of the friction that comes with talking to a speaker to control your smart home or getting info on the fly.

Amazon (AMZN) is gearing up for a “brand new lineup of devices” to launch this fall that will accompany the tech giant’s latest AI venture, CEO Andy Jassy said in an interview with Bloomberg Television on Thursday.