---
title: "Suno suno-v4.5-plus API — Pricing, code samples | RunAPI"
url: "https://runapi.ai/models/suno/v4.5-plus.md"
canonical: "https://runapi.ai/models/suno/v4.5-plus.md"
locale: "en"
model: "Suno"
provider: "Suno"
variant_id: "suno-v4.5-plus"
sdk_model_id: "suno-v4.5-plus"
modality: "audio_music"
price_from_cents: 12
billing_unit: "call"
status: "active"
---

# Suno suno-v4.5-plus API

Same API, same SDK — switch variants by changing one parameter.

## Pricing

**$0.120** per call

Failed generations are not charged

## Spec sheet

| Field | Value |
|---|---|
| Model ID | `suno-v4.5-plus` |
| Provider | Suno |
| Modality | audio_music |
| Task type | asynchronous |
| Billing unit | call |
| API endpoint | `/api/v1/suno/add_vocals` |
| Status | active |

## Install

```sh
npm install @runapi.ai/suno
```

## Quickstart

```sh
curl -X POST https://api.runapi.ai/api/v1/suno/add_vocals \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "suno-v4.5-plus", "prompt": "..." }'
```

```js
import RunAPI from "@runapi.ai/suno";

const client = new RunAPI(process.env.RUNAPI_KEY);
const task = await client.create({
  model: "suno-v4.5-plus",
  prompt: "...",
});
```

## FAQ

### Is the model ID stable across versions?

RunAPI keeps the model ID stable and handles compatible version refreshes without changing your request shape.

### What's the rate limit on this variant?

Per-key rate limits scale with usage tier. See pricing page for current limits.

### Can I switch variants later?

Yes — variant is a flag. Switch by changing the model parameter.

### Does it stream?

Where streaming is available, RunAPI streams end-to-end.

### Where do I report quality issues?

Open an issue on the public GitHub repo or email support.


## Related

Other Suno variants:

- [suno-v3.5](https://runapi.ai/models/suno/v3.5.md) — `v3.5` · $0.120
- [suno-v4](https://runapi.ai/models/suno/v4.md) — `v4` · $0.120
- [suno-v4.5](https://runapi.ai/models/suno/v4.5.md) — `v4.5` · $0.120
- [suno-v4.5-all](https://runapi.ai/models/suno/v4.5-all.md) — `v4.5-all` · $0.120
- [suno-v5](https://runapi.ai/models/suno/v5.md) — `v5` · $0.050
- [suno-v5.5](https://runapi.ai/models/suno/v5.5.md) — `v5.5` · $0.050