| Current model and access | V9.5 appears in current subscription and API documentation. Consumer and API purchases are separate. | v6 and v6-wild are for Pro/Premier; v6-mini is available to all users. Pre-v6 models are retired. | No current independent quality ranking was verified here. |
| Creation and revision | Song, instrumental, extension, remix and region-editing workflows are documented. | v6 documents partial edits in plain language and combining sources. | Compare the exact revision operation you need; neither proves better song structure. |
| Vocal direction | Song API accepts documented vocal IDs, subject to model and control restrictions. | Current v6 workflows include media inputs and sampling/isolation tools. | Run a matched vocal test; no superiority or consistency guarantee is claimed. |
| Source material | Reference audio, melody and vocal controls have documented combination restrictions. | Current v6 announcement describes text, audio, image and video inputs. | Check the input control on the actual product and plan you use. |
| Editing requirements | Region editing needs a supported song or uploaded audio and a selection of at least three seconds. | Suno documents plain-language partial edits in the v6 announcement. | The operations have different contracts; evaluate the edit you need. |
| Downloads and commercial conditions | Premier lists stems, MIDI, WAV and DAW-session downloads. Paid consumer rights and paid API authorization are separate. | Pro lists 20 monthly download credits and Premier 60; Studio is exempt. Suno grants commercial-use rights to songs downloaded while subscribed; copyright protection is not guaranteed. | Verify download entitlement and applicable terms rather than assuming generation includes every export. |
| Length and evidence limits | Song API lyrics are limited to 5,000 characters and prompt to 1,024; no duration guarantee is inferred here. | Official v6 docs say all three variants support generations up to eight minutes. | A maximum is not a guarantee of your requested duration; test the actual output. |