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ERNIE 4.5 21B A3B vs GPT-4.1 Nano (Comparative Analysis)

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Comparative Analysis: ERNIE 4.5 21B A3B vs. GPT-4.1 Nano
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Overview

GPT-4.1 Nano was released 4 months before ERNIE 4.5 21B A3B.
ERNIE 4.5 21B A3BERNIE 4.5 21B A3B
GPT-4.1 NanoGPT-4.1 Nano
Model Provider
The organization behind this AI's development
Baidu logoBaidu
OpenAI logoOpenAI
Input Context Window
Maximum input tokens this model can process at once
120K
tokens
1M
tokens
Output Token Limit
Maximum output tokens this model can generate at once
8K
tokens
32.8K
tokens
Release Date
When this model first became publicly available
August 12th, 2025
April 14th, 2025

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
ERNIE 4.5 21B A3B
GPT-4.1 Nano
Input Types
Supported input formats
📝Text
🖼️Image📝Text📁File
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
OtherGPT
Key Features
Advanced capabilities
Function CallingStructured OutputReasoning ModeContent Moderation
Function CallingStructured OutputReasoning ModeContent Moderation
Open Source
Model availability
Available on HuggingFace →Proprietary

Pricing

ERNIE 4.5 21B A3B is roughly 0.7x less expensive compared to GPT-4.1 Nano for input tokens and roughly 0.7x less expensive for output tokens.
ERNIE 4.5 21B A3BERNIE 4.5 21B A3B
GPT-4.1 NanoGPT-4.1 Nano
Input Token Cost
Cost per million input tokens
$0.07
per million tokens
$0.10
per million tokens
Output Token Cost
Cost per million outut tokens
$0.28
per million tokens
$0.40
per million tokens

Benchmarks

Compare relevant benchmarks between ERNIE 4.5 21B A3B and GPT-4.1 Nano.
ERNIE 4.5 21B A3BERNIE 4.5 21B A3B
GPT-4.1 NanoGPT-4.1 Nano
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Benchmark not available.
Benchmark not available.
MMMU
Measures understanding of combined text and images across various domains
Benchmark not available.
Benchmark not available.
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Benchmark not available.
Benchmark not available.

At a Glance

Quick overview of what makes ERNIE 4.5 21B A3B and GPT-4.1 Nano unique.
Baidu logoERNIE 4.5 21B A3B by Baidu is a text-based AI model. It can handle standard conversations with its 120K token context window. Very affordable at $0.07/M input and $0.28/M output tokens. Released August 12th, 2025.
OpenAI logoGPT-4.1 Nano by OpenAI understands both text and images, can use external tools and APIs, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.10/M input and $0.40/M output tokens. Includes built-in content moderation for safer outputs. Released April 14th, 2025.

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