LongCat 2.0 vs GPT OSS 120B

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

GPT OSS 120B

openai/gpt-oss-120b

input · usd / 1m tok$0.30$0.35
output · usd / 1m tok$1.20$0.75
context window1.05mtokens128ktokens
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

GPT OSS 120B

openai/gpt-oss-120b

input$0.30$0.35
output$1.20$0.75
cache read$0.006not published

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

GPT OSS 120B

openai/gpt-oss-120b

creatormeituanOpenAI
model typeText generationText generation
context window1,048,756tokens128,000tokens
input

takes text in, gives text out

takes text in, gives text out

outputtexttext
tool callingnot verifiednot verified
releasednot publishedaug 5, 2025
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

GPT OSS 120B

openai/gpt-oss-120b

high

intelligence index · gateway ranknot measured12.3#77 of 90
coding indexnot measured30.4#50 of 60
agentic indexnot measured6.2#44 of 49
omnisciencenot measured-49.3#79 of 86
gpqanot measured78.2%#66 of 88
humanity’s last examnot measured19.6%#60 of 89
terminal-bench v2.1not measured26.2%#49 of 57
aime 2025not measured93.4%
livecodebenchnot measured87.8%
ifbenchnot measured69.0%
tau2not measured65.8%
aa-lcrnot measured52.0%
scicodenot measured34.0%
terminal-bench hardnot measured23.5%
harvey labnot measured13.9%
tau bankingnot measured12.8%
itbenchnot measured5.6%
gdp.pdf all-passnot measured4.0%
apex-agentsnot measured3.1%
critptnot measured1.1%
multilingual lcrnot measured1.1%
automationbench partialnot measured0.2%
terminal-bench v4.0not measured0.0%

GPT OSS 120B 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.

GPT OSS 120B

openai/gpt-oss-120b

estimated usage cost

$0.725

1,000 requests × (1,000 uncached input × $0.35 + 500 output × $0.75) / 1,000,000 = $0.725

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 GPT OSS 120B 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.

GPT OSS 120B is created by OpenAI. It has a 128,000-token context window. Base API pricing (USD): $0.35 per million input tokens; $0.75 per million output tokens.

LongCat 2.0GPT OSS 120B

this page compares LongCat 2.0 vs GPT OSS 120B 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 ↗comparison as markdown ↗report a correction →