Credits are the constraint, not the model

"Already wasted 1.5k credits in 3 days." That is one reply on So many wasted credits, and the number is worth converting into something you can feel.

What a generation costs, in the units you care about

Users in these threads describe a generation costing 10 credits and a monthly allowance in the low thousands. One writer works from 250 songs on 2,500 credits, and on the character limit thread somebody offers to pay twenty credits instead of ten for a longer lyric box. Those are user reports rather than a price list, and plans change, so treat the ratio rather than the figures.

At that ratio, 1.5k credits is about 150 generations. Three days of work, and more than half a month of allowance, spent finding out what was wrong.

Most of what goes wrong is visible before you press create

Here is a four-line sheet with four problems in it, none of them obvious while you are writing:

[Verse 1]
The lead on the roof of the church has been gone since the storm in March
(softly) nobody has climbed up there to look

[Chorus]
Say it to the rain
Say it to the rain

Line one runs 16 syllables and will be rushed. "Lead" here is the metal, but it is spelled the same as the verb, so the reading is a coin toss. The direction in parentheses is not a direction, it is a word the singer will perform. And the sheet ends on the chorus, so the song has no landing.

Found by listening, that is four generations, roughly 40 credits, and three of them will leave you unsure which change helped, because you will be tempted to fix two things at once. Found by reading, it is four edits and no credits:

[Verse 1]
The led on the roof of the church
has been gone since the storm in March
[Softly]
nobody has climbed up there to look

[Chorus]
Say it to the rain
Say it to the rain

[Outro]
Say it to the rain

Where the credits actually go

Not every generation is waste, and the ones that are tend to fall into the same four buckets.

The first draft is unavoidable, because you cannot hear a song by reading it. Re-rolls for variance are partly unavoidable, since two takes arrive at once and neither is guaranteed to be the one. Extends and section replaces are situational, and they are cheap compared to rebuilding a song around one bad line.

The fourth bucket is the one worth attacking: generations spent discovering something that was written on the page. Those cost the same as the others and teach you the least, because at the end you have learned that a 16-syllable line gets rushed, which was knowable for nothing.

The pre-flight is free and the generation is not

Everything in that list is arithmetic and word lists rather than judgment, which is why it can be done without a model, without credits and without an account. The free Suno lyrics check runs exactly those checks on a pasted sheet and prints what it finds, and any of them can be done by hand with a pencil and two minutes.

The order that saves the most is dull. Read the sheet, fix what the page shows you, then spend the first generation on the version you cannot improve by reading.

Tip

Keep a rule for how many generations one song gets before you stop and go back to the sheet. Five is a reasonable number. If you are past it, the problem is usually not the model.

What checking the sheet will not save

Some of that 1.5k credits was not recoverable by any amount of proofreading. The same thread reports songs running to 7:59 and lyrics ignored across new songs, covers, mashups and personas, on both the website and the app. When the platform is having a bad week, a clean sheet gets you a clean-sheet version of the same problem.

Variance costs credits too. Suno returns two takes and neither is the take you heard in your head, so some regeneration is the job rather than a failure of preparation.

And some things genuinely need to be heard. Whether the bridge earns its place, whether the chorus lands after the second verse, whether the voice suits the song: no page check has an opinion worth having about any of that, and those are the generations worth spending.

Before your next generation, read the sheet once looking only for lines over 12 syllables, words with two pronunciations and anything in parentheses.