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LongCat Flash Chat

Vercel AI Gateway

LongCat Flash Chat by Vercel AI Gateway costs — per 1M input tokens and — per 1M output tokens, with a 128K-token context window.

Pricing

Input (per 1M tokens)
—
Output (per 1M tokens)
—
Cached input (per 1M)
—

Specifications

Provider
Vercel AI Gateway
Context window
128K tokens
Parameters
—
Released
Sep 2025
Open weights
No
Frontier model
No

Benchmarks

LMArena (Chatbot Arena) Elo
1422.8

Compare LongCat Flash Chat with…

LongCat Flash Chat vs DeepSeek V3.1 Terminus$1.00/1MLongCat Flash Chat vs Qwen2.5 Coder 32B Instruct$1.00/1MLongCat Flash Chat vs Nemotron 3 Super 120B A12B$1.00/1MLongCat Flash Chat vs MiniMax M2$1.02/1MLongCat Flash Chat vs MiniMax M2.5$0.95/1MLongCat Flash Chat vs DeepSeek V3.1$0.95/1M

FAQ

How much does LongCat Flash Chat cost?

LongCat Flash Chat is priced at — per 1M input tokens and — per 1M output tokens. Output tokens cost more than input.

What is LongCat Flash Chat's context window?

LongCat Flash Chat supports a context window of 128K tokens — the maximum prompt plus response length it can handle in a single request.

Is LongCat Flash Chat open weight?

No — LongCat Flash Chat is a closed/proprietary model accessed via API.

Data as of 2026-06-28. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.