Baidu: ERNIE 4.5 21B A3B Thinking API
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, open weights architecture. Access Baidu: ERNIE 4.5 21B A3B Thinking via the Kilo Gateway API with up to 66K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsOpen
Limits
Context Window
131K
Tokens
Input Limit
131K
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.07
Output
$0.28
Frequently Asked Questions
Baidu: ERNIE 4.5 21B A3B Thinking by Kilo Gateway costs $0.07 per 1M input tokens and $0.28 per 1M output tokens.
Model Details
ID
baidu/ernie-4.5-21b-a3b-thinking
Provider
Kilo GatewayFamily
Release Date
Sep 19, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
KILO_API_KEY
API Base URL
https://api.kilo.ai/api/gateway