Muse Spark Open

MetaOpen weights1.05M context

As of Oct 15, 2026, Muse Spark Open costs $1.25 per million input tokens and $4.25 per million output tokens from Fireworks AI. The cheapest of 3 sellers is Fireworks AI at $1.25 / $4.25.

Lowest price, from Fireworks AI

Pricing page

Per million tokens

Input: $1.25
Output: $4.25
Cached input: $0.15
Batch input / output: —

Estimate your monthly cost

Input per month

M tokens

Output per month

M tokens

Input served from cache

Est. per month = input tokens × input price + output tokens × output price. Prices are per million tokens, so 10M input tokens at $3.00 cost $30. ¹ The price is higher for long prompts (usually over 200K tokens); the estimate uses the base price.

From Fireworks AI: $21.00 a month.

Where to buy it (3)

Sorted by your monthly estimate. Prices per million tokens.

Seller	Input	Output	Cached input	Context	Est. per month10M in · 2M out
Fireworks AI fireworks_ai/accounts/fireworks/models/muse-spark-open	$1.25	$4.25	$0.15	1.05M	$21.00
Nebius meta-models/muse-spark-open	$1.25	$4.25	$1.25	1.05M	$21.00
OpenRouter meta/muse-spark-open	$1.25	$4.25	$0.15	1.05M	$21.00

Fireworks AI
Input / output
$1.25 / $4.25
Context
1.05M
Per month
$21.00
fireworks_ai/accounts/fireworks/models/muse-spark-open
Nebius
Input / output
$1.25 / $4.25
Context
1.05M
Per month
$21.00
meta-models/muse-spark-open
OpenRouter
Input / output
$1.25 / $4.25
Context
1.05M
Per month
$21.00
meta/muse-spark-open

Cloud and hosted sellers may add regional pricing, minimums or platform fees. Supports: Vision, Tool calling, Reasoning.

Lowest price, from Fireworks AI

Estimate your monthly cost

Where to buy it (3)

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