Text generation / Meta

Muse Spark 1.3 (Contributor)

Muse Spark 1.3 (Contributor) is a text generation model from Meta, available through the Impossibl API. Its published context window is 1,048,576 tokens. The advertised input rate is $0.10 per million input tokens. The advertised output rate is $0.20 per million output tokens.

api id: meta/muse-spark-1.3-contributor

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how much does muse spark 1.3 (contributor) cost?

published base api rates · usd per 1m tokens

input
$0.10
output
$0.20
cache read
$0.002

rates are published by the impossibl api. balance-purchase fees, taxes, tool charges, and workspace-specific pricing are separate.

specifications & capabilities

creator
Meta
model type
Text generation
context window
1.05m tokens
maximum output
not published in the catalog
input types
text, image
output types
text
tool calling
not verified in the catalog

unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports.

published endpoint

/v1/chat/completions

see the model documentation for integration details.

estimate your usage

estimate your api cost

estimate text token usage for your workload. all amounts are in usd.

token workload

total input, including cached tokens

include billable reasoning tokens

the same token usage in each request

a subset of total input, never additional tokens

Muse Spark 1.3 (Contributor)

$0.20

estimated usage cost

1,000 requests × (1,000 uncached input × $0.10 + 500 output × $0.20) / 1,000,000 = $0.20

base rates; no context pricing tiers are published.

estimates use published impossibl api usage rates. configured billing adjustments, funding fees, taxes, and custom workspace rates are excluded and may change the final amount.

image and audio usage, cache creation, and additional tool charges are excluded. reasoning tokens count as billable output, even when they are not visible in the response.

compare more Text generation models

independent benchmarks

Benchmark results are not available for this model yet.

frequently asked questions

What is Muse Spark 1.3 (Contributor)?

Muse Spark 1.3 (Contributor) is a text-generation model from Meta, available through the Impossibl API.

How much does Muse Spark 1.3 (Contributor) cost?

Muse Spark 1.3 (Contributor) costs $0.10 per million input tokens and $0.20 per million output tokens through the Impossibl API. Cache reads cost $0.002 per million tokens. All rates are in USD.

view the pricing table ↑

What is the context length of Muse Spark 1.3 (Contributor)?

Muse Spark 1.3 (Contributor) has a 1,048,576-token context window through the Impossibl API.

What inputs and outputs does Muse Spark 1.3 (Contributor) support?

Muse Spark 1.3 (Contributor) accepts text and image as input. Muse Spark 1.3 (Contributor) returns text.

How do I use Muse Spark 1.3 (Contributor) through an API?

Muse Spark 1.3 (Contributor) is available through the Impossibl API. Use meta/muse-spark-1.3-contributor as the model identifier with /v1/chat/completions. The quickstart explains how to create an API key and send your first request.

follow the api quickstart →

When was Muse Spark 1.3 (Contributor) released?

Meta released Muse Spark 1.3 (Contributor) on September 2, 2026.

sources & coverage

this page describes Muse Spark 1.3 (Contributor) as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.

view the source catalog ↗

model descriptions and release dates, where available, use the creator sources linked in the faq. api prices and limits use the impossibl catalog. benchmark results, where available, are credited to Artificial Analysis in the benchmarks section. report a correction →