Overview

Baidu open-sourced the ERNIE 4.5 family in June 2025. The 21B-A3B model is a popular mid-size option; larger MoE and multimodal versions are also available.

Highlights

  • Models from 0.3B to 424B
  • Mixture-of-experts with 3B or 47B active
  • Text and vision-language variants
  • Apache 2.0 license

Typical uses

Chinese and English assistants, research on MoE.

Things to consider

  • Tooling support still catching up with Llama and Qwen.

Specifications are taken from the model card on Hugging Face and the provider’s announcement. Benchmark results depend on evaluation settings; see how AI benchmarks work.