Moshi AI vs brain.fm

Moshi AI is a speech-native conversational model from Kyutai, a Paris-based open-science research lab. Instead of chaining speech recognition, text generation, and text-to-speech, Moshi processes audio directly and holds full-duplex voice conversations with minimal latency.

Its multi-stream design runs separate channels for the user, Moshi's spoken output, and an Inner Monologue text stream that improves coherence. That setup lets Moshi listen and talk at the same time, handle overlaps, interruptions, and backchanneling like a real conversation rather than rigid speaker turns.

Moshi is built on Helium, a 7B language model, and Mimi, Kyutai's neural audio codec. Weights and inference code ship for PyTorch, Rust, and MLX, and you can try it in the browser at moshi-chat.kyutai.org. Researchers, voice AI developers, and anyone building real-time spoken interfaces will find the most value here.

brain.fm streams functional music built to steer your brain toward focus, sleep, relaxation, or meditation. Unlike a playlist app, each stream is composed for a specific mental state, with modes like Deep Work, Guided Sleep, Power Nap, and Guided Meditation. The player lives at my.brain.fm and also runs on iOS, Android, and desktop apps. You pick an activity, hit play, and the music starts without digging through genres.

Most focus playlists on Spotify or YouTube are curated from existing songs, which means lyrics, hooks, and attention-grabbing moments still compete with your work. brain.fm takes a different route: human composers work with neuroscientists to embed patented phase-locking modulation that targets coordinated neural activity, and the company publishes placebo-controlled studies comparing its tracks to binaural beats and ordinary background music. The site says this approach reaches the prefrontal cortex rather than relying on the older binaural-beat technique that needs matched headphones in both ears.

The product is aimed at knowledge workers, students, and anyone who struggles to stay on task, with a dedicated ADHD mode backed by a National Science Foundation grant and peer-reviewed papers in Nature Communications Biology. Timers built into the player track work blocks and breaks, which pairs well with Pomodoro-style workflows. If you need quiet recovery time, sleep and relax modes use delta and alpha wave-enhanced audio with guided and unguided options.