LongCat 2.0 vs GLM-5.1

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

GLM-5.1

zai/glm-5.1

input · usd / 1m tok$0.30$1.40
output · usd / 1m tok$1.20$4.40
context window1.05mtokens200ktokens
modalities · in → out

takes text in, gives text out

takes text in, gives text out

pricing

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

meituan/longcat-2.0

GLM-5.1

zai/glm-5.1

input$0.30$1.40
output$1.20$4.40
cache read$0.006$0.26

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

GLM-5.1

zai/glm-5.1

creatormeituanZ.AI
model typeText generationText generation
context window1,048,756tokens200,000tokens
input

takes text in, gives text out

takes text in, gives text out

outputtexttext
tool callingnot verifiednot verified
releasednot publishedapr 7, 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

GLM-5.1

zai/glm-5.1

reasoning

intelligence index · gateway ranknot measured26.4#40 of 90
coding indexnot measured55.8#39 of 60
agentic indexnot measured25.2#32 of 49
omnisciencenot measured0.8#35 of 86
gpqanot measured86.8%#45 of 88
humanity’s last examnot measured30.1%#43 of 89
terminal-bench v2.1not measured61.8%#36 of 57
tau2not measured97.7%
ifbenchnot measured76.3%
aa-lcrnot measured73.7%
scicodenot measured44.8%
terminal-bench hardnot measured43.2%
itbenchnot measured40.3%
automationbench partialnot measured20.3%
tau bankingnot measured13.6%
gdp.pdf all-passnot measured8.4%
critptnot measured4.6%
terminal-bench v4.0not measured2.0%

GLM-5.1 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.

GLM-5.1

zai/glm-5.1

estimated usage cost

$3.60

1,000 requests × (1,000 uncached input × $1.40 + 500 output × $4.40) / 1,000,000 = $3.60

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 GLM-5.1 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.

GLM-5.1 is created by Z.AI. It has a 200,000-token context window. Base API pricing (USD): $1.40 per million input tokens; $4.40 per million output tokens.

LongCat 2.0GLM-5.1

this page compares LongCat 2.0 vs GLM-5.1 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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