# Baidu releases ERNIE 5.5 Flash Preview with 280B parameters and 1M-token context

> Original title: 文心 5.5 Flash Preview发布！编程、3D 建模、知识工作、内容创作等全面升级

- Source: Leiphone
- Published: 2026-11-11T05:22:00.000Z
- Bad Influence: https://badinfluence.news/items/xpug0v2hg0pkdrhwyed6x4cjx
- Original: https://www.leiphone.com/category/industrynews/sqz0hf4DoTPX5mqI.html

## Summary

Baidu says it released ERNIE 5.5 Flash Preview on November 11, with 280 billion total parameters, 14 billion active per token, and a context window of up to 1 million tokens. The model is available through Baidu Intelligent Cloud's Qianfan platform, with API prices of 2 yuan per million input tokens and 8 yuan per million output tokens during peak hours, discounted 50% for a limited time. Baidu says model weights will be released to the global open-source community on November 25.

## Why it matters

The source gives parameter count, context length, API pricing, and an open-weights date, which helps readers compare the model with others of similar size.