Suno releases "v4.5" — songs up to 8 minutes and better prompt adherence
Suno announced its new model, “v4.5,” first rolling it out to Pro and Premier users. The maximum length of a song produced in a single generation has been extended to 8 minutes, and prompt adherence and the precision of style blending have also improved.
Details
- Longer generation length: Can now produce songs up to 8 minutes long on the first generation (up from a maximum of 4 minutes through v4)
- Prompt adherence: Improved responsiveness to instructions, making it easier to produce songs with the intended style and mood
- Style blending: Improved precision of “style mashups” that combine multiple genres
- Availability: Initially rolled out early to Pro and Premier users, with gradual expansion to other plans
What happened next
With v4.5 enabling longer, higher-quality song generation, Suno further deepened its penetration into professional music production workflows. By March 2026, it evolved into “v5.5,” which added voice personalization features, moving toward a new direction of music creation that reflects an individual’s own voice.