# Baidu: ERNIE 4.5 21B A3B

Provider: baidu  
Category: llm  
Model ID: `baidu/ernie-4.5-21b-a3b`

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...

## Specs

- Context length: 120000 tokens
- Max output: 8000 tokens
- Modalities: text
- Released: 2025-08-12

## Pricing

- Input: $0.07 per million tokens
- Output: $0.28 per million tokens

## Providers

- **baidu** — ctx 120000, input $0.07/M, output $0.28/M

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Last verified: 2026-04-23T23:46:29.618Z  
Canonical URL: https://switchy.build/models/ernie-4-5-21b-a3b