Suno character limits by model — on V4.5/V5/V5.5: 1,000-char Style, 5,000-char Lyrics, 100-char title (V4 & older: 200/3,000/80). Critical tags first. Everything Suno needs, spelled out:
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TL;DR
V4.5 / V5 / V5.5 → Style: 1000 | Lyrics: 5000 | Title: 100 V4 & older → Style: 200 | Lyrics: 3000 | Title: 80
Suno's field limits are set by the model version you generate with, not your subscription tier. On the current models — V4.5, V5, and V5.5 — the Style field holds about 1,000 characters, the Lyrics box holds 5,000 characters (roughly 80–100 lines), and the song title caps at 100. On V4 and older, those caps are lower: 200-char style, 3,000-char lyrics, 80-char title. As a practical rule, ~3,000 characters of lyrics is the sweet spot before Suno starts to rush a song, even on the newer 5,000-char box. HookGenius generates a complete style prompt and structured lyrics for any project in about 30 seconds.
Last updated: July 2026
Knowing Suno's input limits prevents wasted time — and in 2026 the single most important fact is that the limits changed with the model version. Suno V4.5 raised every field cap, and the increase applies to free and paid accounts alike. Here's every field limit by model, verified against Suno's current field specs.
| Suno model | Lyrics box | Style field | Title |
|---|---|---|---|
| V4.5 · V5 · V5.5 (current) | 5,000 chars | 1,000 chars | 100 chars |
| V4 & older | 3,000 chars | 200 chars | 80 chars |
The limit is tied to the model version you pick in Suno, not whether your account is free or paid. If your lyrics are getting cut at 3,000 characters, you're generating on V4 or older — switch to V4.5, V5, or V5.5 for the full 5,000. Note: even with the 5,000-char box, ~3,000 characters (40–60 lines) is the practical sweet spot before Suno starts rushing or shortening a song.
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Generate Your First Songindie pop, dreamy female vocals, layered harmonies, shimmering synths, lo-fi warmth, nostalgic, 95 BPM, polished mix, wide stereo, emotional
trap, aggressive male rap, dark atmosphere, 808 bass, hi-hat rolls, 145 BPM, hard-hitting, professional mix
jazz, smooth saxophone, upright bass, brush drums, intimate, warm, 120 BPM
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[Verse 1] Four lines of verse Each line 4-8 words Natural breathing points Clear phrasing [Pre-Chorus] Two lines building Toward the hook [Chorus] Catchy hook line Repeat the core idea Memorable melody [Verse 2] New perspective, same energy Four more lines Keep the momentum Driving forward [Chorus] Catchy hook line Repeat the core idea Memorable melody [Bridge] Something different Emotional shift [Chorus] Catchy hook line Repeat the core idea Memorable melody [Outro] (Fade)
| Problem | Fix |
|---|---|
Style prompt being truncated |
You're likely on V4 (200-char style cap) — switch to V4.5/V5/V5.5 for 1,000. Either way prioritize: genre, vocal type, mood, 1-2 instruments, BPM. Drop adjectives first. |
Lyrics output is cut short |
Reduce lyrics to 30-40 lines max. If you need a longer song, use Suno's extend feature to continue from the endpoint. |
Important tags being ignored |
Move the most important tags to the BEGINNING of your style prompt. Suno weighs early terms more heavily. |
Output doesn't match the prompt at all |
Check your model + character count. On V4 (200-char style cap) a longer prompt loses its tail — key terms may be truncated. Switch to V4.5+ (1,000) and front-load the essentials. |
Song much shorter than expected |
Add more lyrics (aim for 30-40 lines) and include multiple sections ([Verse], [Chorus], [Bridge], etc.) |
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Generate Free — 5 Songs IncludedIt depends on the Suno model version. On V4.5, V5, and V5.5 the Style field holds about 1,000 characters; on V4 and older it's about 200. The limit is set by the model you generate with, not your subscription tier. Either way, front-load your most important genre, mood, and vocal tags — Suno weighs earlier terms more heavily.
Suno's lyrics box holds up to 5,000 characters on the current models (V4.5, V5, and V5.5) and 3,000 characters on V4 and older — the limit depends on the model version, not your plan. As a practical best practice, ~3,000 characters (roughly 40-60 lines) is the sweet spot before Suno tends to rush or shorten a song, even though the hard cap on current models is 5,000. Too few lyrics (under 15 lines) typically produces a shorter output.
A single Suno generation produces approximately 1-4 minutes of audio, depending on your lyrics length and style. For longer songs, use Suno's "Extend" feature to continue from the endpoint. There's no hard maximum for extended songs, but quality tends to degrade after many extensions. Most users find 3-4 minutes optimal per generation.
Model version, not tier. Suno V4.5 raised the field limits across every plan: the lyrics box went from 3,000 to 5,000 characters, the style field from 200 to 1,000, and the title from 80 to 100. A free or paid account on the same model has the same limits — so if you're hitting an old 3,000 cap, switch your generation to V4.5, V5, or V5.5 to get the full 5,000. For the style field, still front-load: genre, vocal direction, mood, 1-2 instruments, BPM — a concise 100-character prompt often beats a cluttered one.
Suno has limited negative prompt support. You can use the "Negative Style" or "Exclude" field (where available) to specify what you DON'T want: "no vocals," "no drums," "no autotune." In the main style prompt, negative phrases like "no percussion" sometimes work but are less reliable than positive direction. It's generally better to describe what you WANT than what you don't want.
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Get the Mastery Guide — $29 →Suno silently truncates whatever runs past your model’s field caps — and front-loading the tags that matter is the difference between a track that lands and one that doesn’t. HookGenius is the prompt engine professional Suno creators use — built on a prompt-engineering pipeline refined across 50+ genres.
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