---
title: "Muse Spark 1.3 Contributor API price | RelaySwitch"
canonical: https://relayswitch.io/models/muse-spark-1.3-contributor
generated: 2026-11-12T04:44:13.903Z
source: https://api.relayswitch.io/v1/catalog
base_url: https://api.relayswitch.io/v1
---

# Muse Spark 1.3 Contributor

Muse Spark 1.3 Contributor by Meta through the RelaySwitch API: $0.15 per million input tokens, $0.30 per million output tokens. Pay by card or crypto (Card, USDT, USDC, BTC, ETH, SOL). No KYC.

## Price per million tokens

| Input | Cached input | Output |
| --- | --- | --- |
| $0.15 | $0.003 | $0.30 |

Meta list price: $0.10 in / $0.20 out.

## Specs

- Model id: `muse-spark-1.3-contributor`
- Developer: Meta
- Context window: 1M tokens
- Max output: not published
- Input: text, image

## Call it

```bash
curl https://api.relayswitch.io/v1/chat/completions \
  -H "Authorization: Bearer $RELAYSWITCH_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "muse-spark-1.3-contributor", "messages": [{"role": "user", "content": "Hello"}]}'
```

## In JanitorAI, SillyTavern, Chub and Risu

One 2K-in / 300-out turn on Muse Spark 1.3 Contributor: $0.00039 at today's rate; a long chat resends its history, so the price grows with the context setting. The model thinks before it answers: set max tokens to 1,000 or more in the app.

| App | URL field | Value | Model |
| --- | --- | --- | --- |
| JanitorAI | Proxy URL | https://api.relayswitch.io/v1/chat/completions | muse-spark-1.3-contributor |
| SillyTavern | Custom Endpoint (Base URL) | https://api.relayswitch.io/v1 | muse-spark-1.3-contributor |
| Chub | OpenAI Reverse Proxy URL | https://api.relayswitch.io/v1 | muse-spark-1.3-contributor |
| Risu | URL | https://api.relayswitch.io/v1 | muse-spark-1.3-contributor |

API key: your sk-relay- key in every app. Ranked by use with this price on every model: https://relayswitch.io/best-models/janitorai, https://relayswitch.io/best-models/sillytavern, https://relayswitch.io/best-models/chub

No app? Muse Spark 1.3 Contributor runs as a browser chat with characters, images and video at Unrestrictable, no key to paste: https://unrestrictable.ai/chat?model=muse-spark-1.3-contributor&utm_source=relayswitch.io&utm_medium=site&utm_campaign=model-md

Keys and top-ups: https://app.relayswitch.io/console