AI Tools Review

Baidu: ERNIE 4.5 21B A3B Thinking

By Baidu

Released: 2025-10-09

API
LLM
RAG
Baidu
Paid
New

Baidu Ernie 4 5 21B A3B Thinking features 21B parameters, MoE architecture and 131k-token context window. ERNIE-4.5-21B-A3B-Thinking is Baidu's upgraded lightweight MoE model, refined to boost reasoning depth and quality for top-tier performance in logical puzzles, math, science, coding, text generation, and expert-level academic benchmarks. Priced affordably at $0.07/1M tokens.

Visit Baidu: ERNIE 4.5 21B A3B Thinking

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 ThinkingCurrent

131k tokens context

Baidu: ERNIE 4.5 21B A3B

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 Window131k tokens

AI Evaluation

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

Optimized for programming tasks, this model excels at code generation, debugging, and software engineering workflows with solid benchmark performance.

Pros

  • Budget-friendly at $0.07/1M tokens
  • 131k token context window
  • Strong code generation and debugging
  • Advanced logical reasoning

Cons

  • May lack creative flair
  • API integration required