Muse Spark Open API pricing
3 providers serve Muse Spark Open. Muse Spark Open is a proprietary API model, up to 1049K context. Prices below are per 1M tokens, cheapest input first.
Refreshed 2026-10-20 · list prices from provider APIsAbout Muse Spark Open
Muse Spark Open was listed on the marketplace 2026-10-15 by Meta. It is a text+image+file+audio+video → text model with a 1049K-token context window. The weights are published as Muse Spark Open on Hugging Face.
| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context | |
|---|---|---|---|---|---|
| Fireworks AI | $1.25 | $4.25output floor | $0.150 | 1049K | Use |
| Baseten | $1.25 | $4.25 | $0.150 | 1049K | Use |
| OpenRouter marketplace quote | $1.25 | $4.25 | $0.150 | 1049K | Use |
Price since listing
First tracked input floor: $1.25/1M on 2026-10-16. Latest: $1.25/1M on 2026-10-20 (5 days tracked).
The cheapest way to run Muse Spark Open
On an illustrative 70M-input / 30M-output monthly workload, today's lowest listed cost is roughly $215/month — the same at Fireworks AI, Baseten and OpenRouter. Input-heavy, output-heavy and cache-heavy workloads can produce different winners. Use the live mix calculator below rather than combining floors from two different providers. It is API-only, so the table above is your full set of options. Run your own numbers in the breakeven calculator, or read the breakeven math.
Your actual monthly cost
Cache read uses the listed cache rate where available; otherwise it falls back to normal input price. Batch, write-cache, volume and negotiated discounts are excluded.
Related models
| Model | Cheapest in $/1M | Cheapest out $/1M | Providers |
|---|---|---|---|
| Muse Glimmer 30B | $0.300 | $1.20 | 4 |
| Muse Spark 1.2 | $1.25 | $4.25 | 3 |
| Muse Spark 1.1 | $1.25 | $4.25 | 2 |
| Muse Spark 1.2 Contributor | $0.100 | $0.200 | 2 |
| Muse Spark 1.3 | $1.25 | $4.25 | 2 |
| Muse Spark 1.3 Contributor | $0.100 | $0.200 | 2 |
FAQ
What is the cheapest API for Muse Spark Open?
As of 2026-10-20, the lowest input price for Muse Spark Open, $1.25 per 1M tokens, is the same list price at Fireworks AI, Baseten and OpenRouter. The lowest output price, $4.25 per 1M tokens, is likewise shared by the same providers. The cheapest provider for a real workload depends on its input/output mix.
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