ERNIE 4.0 API: Baidu's Flagship Model — Complete Guide 2026

Baidu's ERNIE 4.0 is one of China's most widely deployed AI models.

Pricing

Model	Input (1M tokens)	Output (1M tokens)
ERNIE 4.0	$0.55	$0.55
ERNIE-3.5	$0.20	$0.20
DeepSeek V4 Pro	$0.14	$0.28
GLM-5	$0.14	$0.14
GPT-4o	$2.50	$10.00

Python Quick Start

from openai import OpenAI
client = OpenAI(base_url="https://aiwave.live/v1", api_key="***")
response = client.chat.completions.create(
    model="ernie-4.0",
    messages=[{"role": "user", "content": "Explain ERNIE features."}]
)

ERNIE 4.0, DeepSeek V4, GLM-5, Kimi K2.5, and Qwen3 are all available through one API key.

Full guide: https://aiwave.live/blog/ernie-4-api-guide