Question 1

What is LongCat 2.0?

Accepted Answer

LongCat 2.0 is a model from Meituan, released on Jun 30, 2026. LongCat 2.0 is a sparse mixture-of-experts language model from Meituan, with 48B active parameters out of 1.6T total. It is suited for coding, repository-level changes, long-horizon problem solving, and agentic workflows.

Question 2

How much does LongCat 2.0 cost?

Accepted Answer

On the Respan gateway, input starts at $0.30 per 1M tokens on OpenRouter, and output starts at $1.20 per 1M tokens on OpenRouter, after gateway discounts.

Question 3

Which providers serve LongCat 2.0 on Respan?

Accepted Answer

LongCat 2.0 is served by OpenRouter.

Question 4

What is LongCat 2.0's context window?

Accepted Answer

LongCat 2.0 accepts up to 1.0M tokens of context.

Question 5

How do I use LongCat 2.0 with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "longcat-2.0". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is LongCat 2.0?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was OpenRouter at 24 tokens per second, and the lowest response latency was 2.7 seconds on OpenRouter. Speed varies with request size and provider.

Question 7

How does LongCat 2.0 score on benchmarks?

Accepted Answer

LongCat 2.0 has 10 published benchmark scores, including IMO-AnswerBench 81.8%, BrowseComp 79.9%, and GPQA Diamond 88.9%. Each score links to where it was published; the data is collected by llmmetric.com.

LongCat 2.0

Providers

Pricing

Cost by volume

Throughput and latency

Output speed

Response latency

Certified where it counts.

Benchmarks

Coding4

Agents2

Reasoning1

Knowledge2

Other1

Apps

LongCat 2.0 FAQ

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