Muse Spark Open API
Meta's chat model. Call it on 666 AI with the same API key as every other model. Pay as you go; prices follow the upstream in real time and this page updates hourly.
| Vendor | Meta |
| Type | chat |
| Price | $1.69 per 1M input tokens · $5.74 per 1M output tokens |
| Live test | Passed our live test in the last 7 days |
| Model ID (use this in your request) | meta/muse-spark-open |
How to call Muse Spark Open
The API is OpenAI-compatible. Replace YOUR-ENDPOINT with the endpoint shown on your API Key page after you sign up, and YOUR-KEY with your key.
curl https://YOUR-ENDPOINT/v1/chat/completions \
-H "Authorization: Bearer YOUR-KEY" \
-H "Content-Type: application/json" \
-d '{"model": "meta/muse-spark-open", "messages": [{"role": "user", "content": "Hello"}]}'from openai import OpenAI
client = OpenAI(base_url="https://YOUR-ENDPOINT/v1", api_key="YOUR-KEY")
r = client.chat.completions.create(
model="meta/muse-spark-open",
messages=[{"role": "user", "content": "Hello"}],
)
print(r.choices[0].message.content)Similar models — price comparison
| Model | Price |
|---|---|
| GLM 5.1 | $1.3 per 1M input tokens · $5.2 per 1M output tokens |
| Inkling | $1.35 per 1M input tokens · $5.47 per 1M output tokens |
| Muse Spark 1.1 | $1.69 per 1M input tokens · $5.74 per 1M output tokens |
| Muse Spark 1.2 | $1.69 per 1M input tokens · $5.74 per 1M output tokens |
| Muse Spark 1.3 | $1.69 per 1M input tokens · $5.74 per 1M output tokens |
| Mistral Large 4.0 | $1.84 per 1M input tokens · $5.64 per 1M output tokens |
More models from Meta
| Model | Price |
|---|---|
| Muse Image | $0.0135 per image |
| Muse Wonder | $5.4 per 1M input tokens · $27 per 1M output tokens |
FAQ
How much does the Muse Spark Open API cost?
On 666 AI, Muse Spark Open costs $1.69 per 1M input tokens · $5.74 per 1M output tokens. You pay only for what you use — no monthly fee. Prices follow the upstream in real time; this page updates every hour.
Can I use the official OpenAI SDK?
Yes. The API is OpenAI-compatible: in the OpenAI Python or Node.js SDK just change base_url and api_key, and set model to meta/muse-spark-open.
How do I pay?
Bank card (including Google Pay / Apple Pay), USDT / ETH, or bank wire. Top up once and usage is deducted as you go.