ERNIE 4.5 21B A3B Thinking

ERNIE 4.5 21B A3B Thinking

Baidu

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.

What is ERNIE 4.5 21B A3B Thinking?

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.

Specifications

  • Developer: Baidu
  • Context window: 131.1K tokens
  • Max output: 65.5K tokens
  • Input modalities: text
  • Output modalities: text
  • Input price: $0.0700 per 1M tokens
  • Output price: $0.2800 per 1M tokens
  • Knowledge cutoff: 2025-03-31
  • Supported parameters: frequency_penalty, include_reasoning, max_tokens, presence_penalty, reasoning, repetition_penalty, seed, stop, temperature, top_k, top_p

Use ERNIE 4.5 21B A3B Thinking with PromptLayer

PromptLayer lets teams manage, evaluate, and observe prompts that run on ERNIE 4.5 21B A3B Thinking alongside every other model in their stack. Version prompts, run evals across models, and ship safe rollouts from the same dashboard.

Ready to try it yourself? Sign up for PromptLayer and start managing your prompts in minutes.

Socials
PromptLayer
Company
All services online
Location IconPromptLayer is located in the heart of New York City
PromptLayer © 2026