> ## Documentation Index > Fetch the complete documentation index at: https://docs.goenhance.ai/llms.txt > Use this file to discover all available pages before exploring further. # Suno Stem Split > Separate a song into stems. Pick exactly one source: `task_id` + `audio_id` (one of your Suno songs) or `audio_url` (any audio, up to 20 MB). Works best on clean mixes such as AI-generated songs. **Pricing** (per request, by `mode`): | Option | Tokens | USD | |---|---|---| | vocals · 2 stems | 3.25 | $0.065 | | single · 1 instrument | 6.5 | $0.130 | | stems · up to 12 stems | 16.25 | $0.325 | Separating the same audio again is charged again, so keep the results. **Result**: `json` holds one item per stem, e.g. `{ "type": "audio", "value": "https://...mp3", "stem": "vocal" }`. `stem` is one of `vocal`, `instrumental`, `backing_vocals`, `drums`, `bass`, `guitar`, `keyboard`, `strings`, `brass`, `woodwinds`, `percussion`, `synth`, `fx`. Stems the song doesn't contain are not returned. Result links expire (see `link_expired_at`). ## OpenAPI ````yaml api-reference/audio-generations/openapi-suno-stem-split.json POST /api/v1/audio/generations openapi: 3.1.0 info: title: GoEnhance API - Suno Stem Split description: >- Separate a song into vocals and instrumental, up to 12 stems, or one chosen instrument. version: 1.0.0 servers: - url: https://api.goenhance.ai security: [] paths: /api/v1/audio/generations: post: tags: - AudioGenerations summary: Suno Stem Split description: >- Separate a song into stems. Pick exactly one source: `task_id` + `audio_id` (one of your Suno songs) or `audio_url` (any audio, up to 20 MB). Works best on clean mixes such as AI-generated songs. **Pricing** (per request, by `mode`): | Option | Tokens | USD | |---|---|---| | vocals · 2 stems | 3.25 | $0.065 | | single · 1 instrument | 6.5 | $0.130 | | stems · up to 12 stems | 16.25 | $0.325 | Separating the same audio again is charged again, so keep the results. **Result**: `json` holds one item per stem, e.g. `{ "type": "audio", "value": "https://...mp3", "stem": "vocal" }`. `stem` is one of `vocal`, `instrumental`, `backing_vocals`, `drums`, `bass`, `guitar`, `keyboard`, `strings`, `brass`, `woodwinds`, `percussion`, `synth`, `fx`. Stems the song doesn't contain are not returned. Result links expire (see `link_expired_at`). parameters: - name: Authorization in: header description: '' required: false example: '{{Authorization}}' schema: type: string requestBody: content: application/json: schema: type: object properties: model: type: string enum: - suno-stem-split description: Model name. Must be `suno-stem-split`. task_id: type: string description: >- The `img_uuid` of one of your earlier successful Suno tasks that produced songs (`suno-v6`, `suno-extend`, `suno-cover`, `suno-add-vocals`, `suno-add-instrumental`, `suno-replace-section` or `suno-mashup`). Must be sent together with `audio_id`. audio_id: type: string description: >- The `audio_id` of the song to use, taken from that task's result (`json[].audio_id`). Must be sent together with `task_id`. audio_url: type: string format: uri description: >- Alternative to `task_id` + `audio_id`: a public URL of any audio file, up to 20 MB. mode: type: string enum: - vocals - stems - single default: vocals description: >- `vocals` (default): 2 stems, vocals + instrumental (vocal remover / karaoke). `stems`: up to 12 stems. `single`: extract one instrument named in `stem_name`. stem_name: type: string enum: - Lead Vocal - Drum Kit - Kick - Snare - Risers - Bass - Backing Vocals - Piano - Electric Guitar - Percussion - String Section - Synth - Acoustic Guitar - Sound Effects - Synth Pad - Synth Bass - Guitar - Brass Section - Organ - Electronic Drum Kit - Lead Electric Guitar - Synth Keys - Rhythm Electric Guitar - Electric Piano - Upright Bass - Keyboards - Distorted Electric Guitar - Synth Strings - Synth Lead - Woodwinds - Rhythm Acoustic Guitar - Flute - Harp - Tambourine - Trumpet - Arpeggiator - Accordion - Fiddle - Pedal Steel Guitar - Synth Voice - Violin - Digital Piano - Synth Brass - Mandolin - Choir - Banjo - Bells - Clarinet - Tenor Saxophone - Trombone - Shaker - French Horn - Glockenspiel - Electric Bass - Cello - Timpani - Harmonica - Marimba - Vibraphone - Lap Steel Guitar - Saxophone - Orchestra - Horns - Cymbals - Hand Clap - Oboe - Celesta - Congas - Drone - Alto Saxophone - Double Bass - Ukulele - Harpsichord - Baritone Saxophone - Xylophone - Tuba - Bass Guitar - Whistle - Lead Guitar - Rhodes - '808' - Bongos - Bassoon - Cowbell - Viola - Sitar - Steel Drums - Piccolo - Theremin - Bagpipes - Hi-Hat - Music Box - Melodica - Tabla - Koto - Djembe - Taiko - Didgeridoo description: >- Required when `mode` is `single` (case-insensitive), not allowed otherwise. The instrument to extract. custom_callback_url: type: string format: uri description: >- Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt. example: https://your-server.com/goenhance/callback required: - model example: model: suno-stem-split audio_url: https://example.com/my-song.mp3 mode: vocals responses: '200': description: '' content: application/json: schema: type: object properties: code: type: integer msg: type: string data: type: object properties: img_uuid: type: string cost: type: number description: >- Tokens deducted for this request. This is the amount actually charged, so it already reflects any discount active on your account and can be lower than the listed price. Tokens are deducted when the task is accepted, and refunded automatically if the generation ends in failure. example: 3.25 required: - img_uuid - cost required: - code - msg - data examples: '1': summary: Success value: code: 0 msg: Success data: img_uuid: c12b656c-747a-44fd-9c80-add79b0c52d5 cost: 3.25 '2': summary: Insufficient tokens value: code: 100 msg: tokens is not enough quota: summary: API key quota exceeded value: code: 101 msg: 'API key quota exceeded: 4990 of 5000 tokens used (monthly)' bad: summary: Invalid parameters value: code: -1 msg: >- lyrics is required when custom_mode is true and instrumental is false headers: {} '401': description: '' content: application/json: schema: type: object properties: code: type: integer msg: type: string headers: {} deprecated: false ````