What is ERNIE 4.5 21B A3B Thinking?

ERNIE 4.5 21B A3B Thinking is an AI model developed by Baidu. It is primarily known for its capabilities in conversation, reasoning, analysis, code generation. You can explore its responses across various challenges on Rival.

What are some common use cases for ERNIE 4.5 21B A3B Thinking?

ERNIE 4.5 21B A3B Thinking is often utilized for tasks such as a wide range of applications. Its performance in these areas can be observed through the challenges presented on our platform.

How does ERNIE 4.5 21B A3B Thinking compare to other AI models on Rival?

You can compare ERNIE 4.5 21B A3B Thinking with other available AI models on Rival by navigating to our main /compare page and selecting ERNIE 4.5 21B A3B Thinking and another model. All comparison data is part of Rival's open dataset.

Where can I find more details about Baidu, the creator of ERNIE 4.5 21B A3B Thinking?

You can learn more about Baidu by visiting their dedicated page on Rival at /providers/baidu, or by exploring our /creators section for an overview of different AI developers.

What is ERNIE 4.5 21B A3B Thinking?

ERNIE 4.5 21B A3B Thinking is an AI model developed by Baidu. It is primarily known for its capabilities in conversation, reasoning, analysis, code generation. You can explore its responses across various challenges on Rival.

What are some common use cases for ERNIE 4.5 21B A3B Thinking?

ERNIE 4.5 21B A3B Thinking is often utilized for tasks such as a wide range of applications. Its performance in these areas can be observed through the challenges presented on our platform.

How does ERNIE 4.5 21B A3B Thinking compare to other AI models on Rival?

You can compare ERNIE 4.5 21B A3B Thinking with other available AI models on Rival by navigating to our main /compare page and selecting ERNIE 4.5 21B A3B Thinking and another model. All comparison data is part of Rival's open dataset.

Where can I find more details about Baidu, the creator of ERNIE 4.5 21B A3B Thinking?

You can learn more about Baidu by visiting their dedicated page on Rival at /providers/baidu, or by exploring our /creators section for an overview of different AI developers.

Updated Oct 9, 2025

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Compare ERNIE 4.5 21B A3B Thinking

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Updated Oct 9, 2025

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Compare ERNIE 4.5 21B A3B Thinking

Grok 3xai

OpenAI o3Premium

OpenAI o4-miniPremium

Claude 3.7 SonnetPremium

GPT-4o (Omni)Premium

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Claude Sonnet 3.6 (2022-10-22)Premium

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Alternatives to ERNIE 4.5 21B A3B Thinking

We're not suggesting you leave ERNIE 4.5 21B A3B Thinking. We're just... putting these here. In case you're curious. Which you are, because you scrolled this far.

Gemini 3.5 Flashgoogle

Ring 2.6 1Tinclusionai

xAI: Grok 4.3xai

Owl Alphaopenrouter

Qwen: Qwen3.5 Plus 2026-04-20qwen

DeepSeek V4 Flashdeepseek

Updated Oct 9, 2025

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ERNIE 4.5 21B A3B Thinking

Name: ERNIE 4.5 21B A3B Thinking
Brand: baidu
Price: 0.07 USD
Availability: OnlineOnly

Baidu's lightweight reasoning MoE model (21B total, 3B active per token) refined for deep multi-step reasoning across logic, math, science, and code. 128K context, Apache-2.0.

ConversationReasoningAnalysisCode Generation

OpenRouter

Provider

Baidu

Release Date

2025-10-09

Size

MEDIUM

Pricing

In: $0.07/1M

Out: $0.28/1M

API Access

Use ERNIE 4.5 21B A3B Thinking in your applications via the OpenRouter API. Copy the code below to get started.

import requests

response = requests.post(
"https://openrouter.ai/api/v1/chat/completions"    ,
    headers={
"Authorization""Bearer $OPENROUTER_API_KEY"        : ,
"Content-Type""application/json"        : 
    },
    json={
"model""baidu/ernie-4.5-21b-a3b-thinking"        : ,
"messages""role""user""content""Hello!"        : [{: , : }]
    }
)
print(response.json())

Replace $OPENROUTER_API_KEY with your API key from openrouter.ai/keys

Model Insights

Sponsored

Model Responses

0 outputs from ERNIE 4.5 21B A3B Thinking

No responses yet. We're working on it. This model is... being patient.

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