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NanoGPT

LongCat Flash API

NanoGPT
About

Process massive datasets with LongCat Flash, featuring an expansive 128K context window for long-document analysis. This model delivers cost-effective pricing at $0.15/1M input and $0.70/1M output tokens, native tool calling support. Access LongCat Flash via the NanoGPT API with up to 33K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Fixed
Attachment
Not Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
33K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.15
Output
$0.70
Frequently Asked Questions

LongCat Flash by NanoGPT costs $0.15 per 1M input tokens and $0.70 per 1M output tokens.

Model Details
ID
meituan-longcat/LongCat-Flash-Chat-FP8
Provider
NanoGPT
Family
longcat
Release Date
Aug 31, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NANO_GPT_API_KEY
API Base URL
https://nano-gpt.com/api/v1
Documentation