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Zyphra speaks! - Two 1.6B TTS Models (Transformer and SSM Hybrid) - Voice cloning - Optimized and cheap API - Apache 2.0, open-weights I could wax poetic about why I think Zonos is great, but listen for yourself.

Solid work

For any ML folks who want to deepen their understanding of ML scalability & performance techniques, I wrote an illustrated deep-dive into Megatron-style tensor parallelism: danielvegamyhre.github.io/ml/performance… any feedback is welcome!

Today we’re releasing a highly requested feature in our Playground — Multi Voice. Powered by Zonos, it lets you assign different voices to different parts of text, generating one seamless audio clip. Bring expressive Voice AI to all of your content or just have some fun.

Zyphra is releasing our first reasoning model, ZR1-1.5B. This small but powerful reasoning model excels at both math and code, making it one of the best models in these categories for its size. It also uses 60% less reasoning tokens than comparable models. 🆓Apache 2.0 license.

Original MoE vision (Jacobs, 1991): experts should COMPETE, not cooperate. Yet modern LLMs ignore this, treating experts as interchangeable compute chunks. With hundreds of experts in trillion-parameter model scales, are we just creating massive redundancy? 1/n

Just wrote an illustrated deep-dive into overlapping the compute and comms in TP+SP using Async TP. My eyeballs hurt now so hopefully somebody finds it useful :) danielvegamyhre.github.io/ml/performance…

Zyphra is expanding! Join our growing team in Palo Alto. We have multiple roles open across multimodal foundation models, RL, product, and infrastructure. Check them out here: jobs.ashbyhq.com/zyphra