Music & SFX · Free tier + paid →#1Top pickIndependent tests
Suno v6, the model Suno serves now, is #1 of 13 on Artificial Analysis's blind-vote vocal music leaderboard and #1 of 19 on its instrumental leaderboard. AA vocal music leaderboard AA instrumental leaderboard
Text-to-music generator for full songs and instrumentals; used for prototyping soundtracks and menu music.
For prototype songs and menu music; free-tier output is personal, non-commercial use only, and upgrading later doesn't license songs made on the free plan.
Voice & dialogue · Free tier + paid →#2Independent tests
Eleven Music v2.5 is #7 of 13 on Artificial Analysis's vocal music leaderboard and mid-table on the instrumental one. It ranks above Stable Audio only because Stable Audio isn't on the vocal board; on instrumentals the two are effectively tied. AA vocal music leaderboard AA instrumental leaderboard
Text-to-speech, voices, sound effects and music generation; usable for NPC voice lines and SFX.
For NPC voice lines and SFX; free-plan output is non-commercial, so a paid plan is required to ship.
Music & SFX · Free tier + paid →#3Independent tests
Stable Audio 3 Large is mid-table (roughly #7 to #12 of 19) on Artificial Analysis's instrumental music leaderboard. It isn't on the vocal board. AA instrumental leaderboard
Stability AI's text-to-audio tool for generating music and audio clips.
For generated music and audio clips; the free plan is non-commercial, while paid plans include a commercial licence.
MMusic & SFX · Free tier + paid →
#4Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use on paid plans; no engine integration stated; API and official MCP server.
Video-to-sound model (SFX 2.0) that generates sound effects, foley and ambience synced to a video while keeping its dialogue; also text-to-SFX, via a web studio, API and MCP server.
For sound effects synced to trailer or gameplay footage; the free plan is non-commercial and watermarked, so anything you ship needs a paid plan.
→#5Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use allowed; no engine integration stated; API.
AI background-music generator; its site lists games among supported uses.
For background music you can monetise; you get a perpetual licence but Beatoven keeps ownership, and pricing is unverified.
→#6Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use allowed; no engine integration stated; API.
Royalty-free AI music generator where you set genre, mood, length and structure and then edit the track.
For editable royalty-free background music; its licence page allows commercial use on all plans.
Music & SFX · Free tier + paid →#7Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use on paid plans; no engine integration stated; API.
AI-generated royalty-free music tracks by mood, genre and duration, with a track editor.
For royalty-free background tracks; game use points to the Business plan, and tracks can't be redistributed as standalone music.
Music & SFX · Free tier + paid →#8Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use on paid plans; no engine integration stated.
AI composer for soundtrack-style music with MIDI and audio export, editable in its built-in editor.
For soundtrack-style game music; only the Pro plan gives you the copyright, and the free plan is non-commercial.
Music & SFX · Free tier + paid →#9Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial use not allowed; no engine integration stated. Udio isn't on Artificial Analysis's music leaderboards.
AI music generation and remixing app.
For personal music experiments only; its current terms prohibit commercial use of output, so it isn't suitable for shipped games.
Coding assistants · Included with engine plan →#10Game-dev fit
No independent quality tests found. Ranked on game-dev fit: commercial terms not stated by vendor; Unity integration; official MCP server.
Unity's AI tools (Unity is retiring the "Unity AI" name): an in-editor assistant for project questions, code and Editor actions, plus generators for images, textures, sounds, 3D models and animations, metered in Unity Credits. The Unity CLI, MCP server and Unity's official agent plugin are free.
For Unity 6 users who want AI inside the editor: credits are included on Pro, Enterprise and Industry, while Personal gets a 14-day trial and then a paid subscription. Unity says you own the outputs, but third-party generator terms also apply.
