LongCat 2.0 vs Muse Spark 1.3 (Contributor)

rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.

the models at a glance: base rates, context window and modalities
specificationLongCat 2.0

meituan/longcat-2.0

Muse Spark 1.3 (Contributor)

meta/muse-spark-1.3-contributor

input · usd / 1m tok$0.30$0.10
output · usd / 1m tok$1.20$0.20
context window1.05mtokens1.05mtokens
modalities · in → out

takes text in, gives text out

takes text and image in, gives text out

pricing

base api rates by model
base api rates · usd per 1m tokensLongCat 2.0

meituan/longcat-2.0

Muse Spark 1.3 (Contributor)

meta/muse-spark-1.3-contributor

input$0.30$0.10
output$1.20$0.20
cache read$0.006$0.002

the estimate below prices one workload at these rates on every model.

specifications

published specifications by model
as publishedLongCat 2.0

meituan/longcat-2.0

Muse Spark 1.3 (Contributor)

meta/muse-spark-1.3-contributor

creatormeituanMeta
model typeText generationText generation
context window1,048,756tokens1,048,576tokens
input

takes text in, gives text out

takes text and image in, gives text out

outputtexttext
tool callingnot verifiednot verified
releasednot publishedsep 2, 2026
endpoint/v1/chat/completions/v1/chat/completions

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

estimate your cost

one token workload, priced on every model at the published rates, in usd. change the numbers to match yours.

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

LongCat 2.0

meituan/longcat-2.0

estimated usage cost

$0.90

1,000 requests × (1,000 uncached input × $0.30 + 500 output × $1.20) / 1,000,000 = $0.90

base rates; no context pricing tiers are published.

Muse Spark 1.3 (Contributor)

meta/muse-spark-1.3-contributor

estimated usage cost

$0.20

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.

summary

LongCat 2.0 and Muse Spark 1.3 (Contributor) are available through the Impossibl API. they share the /v1/chat/completions endpoint; the model identifier selects the model for a request.

LongCat 2.0 is created by meituan. It has a 1,048,756-token context window. Base API pricing (USD): $0.30 per million input tokens; $1.20 per million output tokens.

Muse Spark 1.3 (Contributor) is created by Meta. It has a 1,048,576-token context window. Base API pricing (USD): $0.10 per million input tokens; $0.20 per million output tokens.

LongCat 2.0Muse Spark 1.3 (Contributor)

this page compares LongCat 2.0 vs 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.

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