# Magenta RealTime 2

> **TL;DR.** Magenta RealTime 2 (MRT2) is an open-weights generative music model from Google DeepMind that streams 48 kHz stereo audio in real time, responding to MIDI, text prompts, and audio input with roughly 200 ms control latency — fast enough to play like an instrument.

- **Category:** AI / Creative Tools / Music
- **Stage:** nascent
- **Age:** 2 days
- **Origin date:** 2026-06-04
- **First detected:** 2026-06-05
- **Canonical URL:** https://earlyterms.com/term/magenta-realtime-2
- **Sources:** 6 primary URLs

## Definition

Magenta RealTime 2 (MRT2) is an open-weights generative music model from Google DeepMind that streams 48 kHz stereo audio in real time, responding to MIDI, text prompts, and audio input with roughly 200 ms control latency — fast enough to play like an instrument.

Google released MRT2 on [June 4, 2026](https://magenta.withgoogle.com/magenta-realtime-2) with weights on Hugging Face under Creative Commons Attribution 4.0 and code on GitHub under Apache 2.0. Two sizes ship: mrt2_small (230M parameters) for any Apple Silicon Mac and mrt2_base (2.4B parameters) for M2 Max or M3 Pro and above. DAW plugin (AUv3), standalone app, and Max/MSP extensions are included.

## Analogy

Think of it as a synthesizer that listens to your MIDI and style prompts instead of knobs.

## Why it's emerging now

Google DeepMind shipped Magenta RealTime 2 on June 4, 2026 — a 15x latency reduction over v1 that drops real-time AI music below the 200 ms perceptual threshold, making live performance with AI accompaniment feel responsive for the first time. It runs entirely on-device on Apple Silicon with open weights.

## Related terms

- *parent:* Magenta RealTime
- *competitor:* Suno
- *competitor:* Udio
- *related:* Lyria RealTime
- *related:* mlx
- *parent:* AI music generation
- *parent:* open-weights model
- *related:* DAW plugin
- *related:* MIDI
- *competitor:* Band-in-a-Box

## Sources

1. [Google Magenta — Magenta RealTime 2 official announcement](https://magenta.withgoogle.com/magenta-realtime-2)
2. [GitHub — magenta/magenta-realtime (Apache 2.0, 1.2k stars)](https://github.com/magenta/magenta-realtime)
3. [Hugging Face — google/magenta-realtime-2 model card](https://huggingface.co/google/magenta-realtime-2)
4. [Hacker News — Magenta RealTime 2 launch thread (57 points)](https://news.ycombinator.com/item?id=48407815)
5. [Mervin Praison — MRT2 technical overview](https://mer.vin/2026/06/magenta-realtime-2-open-local-live-music-model-with-midi-and-200ms-latency/)
6. [Google Magenta — Apps and Plugins download page](https://magenta.withgoogle.com/mrt2)

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_Generated by EarlyTerms · https://earlyterms.com/term/magenta-realtime-2_