Suno's v6 announcement runs 3,469 words but the word 'trained' appears zero times, replaced by 'developed with.' Only Warner's press release commits to 'licensed' in writing, and that bundles a settlement, asset sale, and a future opt-in payment mechanism. The artist-payment feature hasn't shipped, the deal doesn't cover Universal, Sony, GEMA, or the Isbell/Lowery lawsuit, and Suno acknowledged scraping YouTube audio the day before launch. The gap between 'developed with' and 'trained on' is exactly where licensing ambiguity lives.
ElevenLabs shipped Music v2.5 on 11 September and made it the default for prompted and reference generation in ElevenMusic, with the model also live in Studio, Flows and the API. The pitch is fuller arrangements and more natural instruments, widest on vocal-led and acoustic genres, backed by a blind test across 47,885 prompt pairs. For anyone scoring video, the constraint is not the audio, it is the download cap: Free gets five lossless downloads a day, Pro gets 400 a month, and downloads are blocked outright on any track built on another artist's song. The useful part is the licensing: what you make is yours on every plan including Free, and the permissions attach to the track, so downgrading or cancelling does not retroactively strip rights to work you already made.
NVIDIA's RTX Spark pipeline renders a 2-second 1080p clip in about 1:25 by generating at 30 FPS in NVFP4 precision, then using offline AI frame generation and upscaling to hit 60 FPS. That's 4.5x faster than full-frame generation, but the frame-gen module isn't out yet, and fast motion or fine textures can still produce artifacts. The efficiency gain may also become deadline pressure rather than creative headroom, a concern for animators and short-form creators.