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ERNIE 5.5 Flash Base news

Open-weight base language model1 story

ERNIE 5.5 Flash Base is a pretrained mixture of experts language model from Baidu with 280 billion total and 14 billion active parameters, released with open weights on 5 November 2026.

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Baidu releases ERNIE 5.5 Flash Base, a 280B open-weight model barred from EU and UK use

Open Source AI

Baidu published ERNIE 5.5 Flash Base on 5 November 2026, a 280B MoE base model with 14B active, under a license that excludes the EU, UK and South Korea.

Summary

Baidu released ERNIE 5.5 Flash Base on 5 November 2026 on Hugging Face and ModelScope. It is a pretrained base checkpoint, not a chat model: a mixture of experts with 280 billion total and 14 billion active parameters, trained on 33.5 trillion tokens. Weights come in FP8 and BF16 under a custom license that excludes the European Union, the United Kingdom and South Korea and requires a separate deal above $50 million in annual revenue.