LongCat 2.0 vs Kimi K3

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

Kimi K3

moonshotai/kimi-k3

input · usd / 1m tok$0.30$3.00
output · usd / 1m tok$1.20$15.00
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

Kimi K3

moonshotai/kimi-k3

input$0.30$3.00
output$1.20$15.00
cache read$0.006$0.30

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

Kimi K3

moonshotai/kimi-k3

creatormeituanMoonshot AI
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 publishedjul 16, 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.

benchmarks

benchmark scores by model, primary tested configuration
primary configurationLongCat 2.0

meituan/longcat-2.0

no benchmarks yet

Kimi K3

moonshotai/kimi-k3

max

intelligence index · gateway ranknot measured43.8#9 of 90
coding indexnot measured76.2#9 of 60
agentic indexnot measured50.6#9 of 49
omnisciencenot measured19.7#17 of 86
gpqanot measured93.5%#8 of 88
humanity’s last examnot measured46.9%#11 of 89
terminal-bench v2.1not measured85.0%#9 of 57
harvey labnot measured94.6%
aa-lcrnot measured88.7%
mmmu-pronot measured80.5%
scicodenot measured59.5%
automationbench partialnot measured58.3%
itbenchnot measured47.7%
tau bankingnot measured46.0%
apex-agentsnot measured41.3%
analystagentnot measured38.8%
multilingual lcrnot measured38.3%
critptnot measured23.4%
gdp.pdf all-passnot measured22.0%
terminal-bench v4.0not measured12.6%

Kimi K3 source ↗

each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-09-11.

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.

Kimi K3

moonshotai/kimi-k3

estimated usage cost

$10.50

1,000 requests × (1,000 uncached input × $3.00 + 500 output × $15.00) / 1,000,000 = $10.50

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 Kimi K3 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.

Kimi K3 is created by Moonshot AI. It has a 1,048,576-token context window. Base API pricing (USD): $3.00 per million input tokens; $15.00 per million output tokens.

LongCat 2.0Kimi K3

this page compares LongCat 2.0 vs Kimi K3 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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