TL;DR
Style: 200 chars | Lyrics: 3000 chars | Title: 80 chars
Pick a vibe, paste an artist or song, get a production-grade Suno prompt. 1 credit = 1 complete song.
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Last updated: May 2026
Knowing Suno's input limits prevents wasted time. Your carefully crafted 500-character style prompt? Suno silently truncates it. Here's every field limit and formatting rule, verified and updated for 2026.
HookGenius is the pre-production engine for AI music — the professional prompt, lyrics, and title generator creators use to get the best output from Suno and other AI platforms.
Generate complete lyrics + style prompts optimized for Suno. Sign in with Google, see results in 30 seconds.
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
cinematic orchestral, sweeping strings, brass fanfare, timpani, epic trailer music, heroic theme, powerful crescendo, wide stereo, professional mastering, 90 BPM
[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 |
Cut to under 200 characters. 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 character count. If your prompt is over 200 chars, the key terms might be in the truncated portion. |
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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HookGenius doesn't paste your words into a template. It has a full AI songwriter that absorbs your direction and writes from scratch — genre-tuned lyrics, vocal direction, structure tags, and production style in one generation.
Album mode, artist DNA fingerprinting, pronunciation engine, and critic pass quality scoring. The depth a year of building produces.
Generate Free — 5 Songs IncludedThe Suno style prompt field accepts approximately 200 characters. Text beyond this limit is silently truncated — Suno doesn't warn you. This means you need to be concise and front-load your most important genre, mood, and vocal direction at the beginning of the prompt. Every character counts.
The Suno lyrics field accepts approximately 3,000 characters, which translates to roughly 40-60 lines or 200-300 words. For a standard 3-4 minute song, aim for 30-40 lines. If you write too many lyrics, Suno may rush through them or cut sections. Too few lyrics (under 15 lines) typically produces a shorter song 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.
Follow this priority order: (1) Genre/subgenre (e.g., "indie pop"), (2) Vocal direction ("dreamy female vocals"), (3) Key mood ("nostalgic, emotional"), (4) 1-2 instruments ("shimmering synths"), (5) BPM ("95 BPM"), (6) Production quality ("polished mix"). Skip articles (a, the), use commas not full sentences. A well-crafted 100-character prompt often outperforms a cluttered 200-character 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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The Suno Mastery Guide
74 genre deep-dives, 150+ tags + 80-term glossary, 40 artist profiles, v5.5 walkthrough, monetization playbook. 396 pages + 25 HookGenius credits.
Get the Mastery Guide — $29 →Suno silently truncates anything past 200 characters in style prompts and 3000 in lyrics — 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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396 pages. 74 niche genre deep-dives. 40 artist profiles. Written by the team that has generated 10,000+ Suno tracks through the HookGenius pipeline since 2024.
Sample chapter · What the inside looks like
Genre · Boom Bap
Canonical references: Pete Rock, DJ Premier, J Dilla. BPM: 75-95 (90 is canonical). Drum signature: dusty kick, snare on 2/4, vinyl crackle under the loop.
Core prompt:
boom bap, gritty confident mood, chopped soul sample, dusty drum break, vinyl crackle, punchy male rap flow, classic New York feel, 90 BPM
Dark variant: swap “confident” for “menacing,” drop to 85 BPM. Bright variant: swap “gritty” for “uplifting,” raise to 95 BPM, add “jazz piano loop.”
One of 74 genre chapters. Every chapter is this concrete.
Credits never expire. 1 credit = 1 complete song.
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