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Helicone

Baidu Ernie 4.5 21B A3B Thinking API

Helicone
About

Build advanced reasoning agents with Baidu Ernie 4.5 21B A3B Thinking, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.07/1M input and $0.28/1M output tokens. Access Baidu Ernie 4.5 21B A3B Thinking via the Helicone API with up to 8K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
8K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.07
Output
$0.28
Frequently Asked Questions

Baidu Ernie 4.5 21B A3B Thinking by Helicone costs $0.07 per 1M input tokens and $0.28 per 1M output tokens.

Model Details
ID
ernie-4.5-21b-a3b-thinking
Provider
Helicone
Family
ernie
Release Date
Mar 16, 2025
Knowledge Cutoff
Mar 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
HELICONE_API_KEY
API Base URL
https://ai-gateway.helicone.ai/v1
Documentation