AI Tools Review

Baidu: ERNIE 4.5 21B A3B

By Baidu

Released: 2025-08-12

API
LLM
RAG
Baidu
Paid
New

Baidu Ernie 4 5 21B A3B features 21B parameters, MoE architecture and 120k-token context window. A sophisticated text-based Mixture-of-Experts (MoE) model featuring 21B total parameters with 3B activated per token, delivering exceptional multimodal understanding and generation through heterogeneous MoE structures and modality-isolated routing. Supporting an extensive 131K token context length, the model achieves efficient inference via multi-expert parallel collaboration and quantization, while advanced post-training techniques including SFT, DPO, and UPO ensure optimised performance across diverse applications with specialized routing and balancing losses for superior task handling. Priced affordably at $0.07/1M tokens.

Visit Baidu: ERNIE 4.5 21B A3B

AI-Powered

Leverages advanced AI technology to deliver cutting-edge capabilities and results.

Fast & Efficient

Optimized performance ensures quick results without compromising on quality.

Purpose-Built

Specifically designed for llms tasks and workflows.

Baidu Model Timeline

Baidu: ERNIE 4.5 21B A3B Thinking

131k tokens context

Baidu: ERNIE 4.5 21B A3BCurrent

120k tokens context

Baidu: ERNIE 4.5 VL 28B A3B

30k tokens context

Baidu: ERNIE 4.5 VL 424B A47B

123k tokens context

Baidu: ERNIE 4.5 300B A47B

123k tokens context

Specifications

pricing$0.07 / $0.28 (per 1M)
context Window120k tokens

AI Evaluation

4.8
Expert Rating
Text4.9/5
Coding3.5/5

A versatile multimodal model handling both text and visual inputs. Strong choice for applications requiring cross-modal understanding and analysis.

Pros

  • Budget-friendly at $0.07/1M tokens
  • 120k token context window
  • Multi-modal input support
  • Optimized for RAG workflows

Cons

  • API integration required
  • May need prompt tuning