HeliconeBaidu Ernie 4.5 21B A3B Thinking model ID, context window & pricing
ernie
Quick facts
Model ID ernie-4.5-21b-a3b-thinking
Source Helicone
Context Window 128000
Pricing $0.07 input / $0.28 output per 1M tokens
Capabilities reasoning, temperature control
Model overview
Baidu Ernie 4.5 21B A3B Thinking is an AI model from Helicone with 128000 token context window and text input support.
Published pricing is $0.07 input and $0.28 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID ernie-4.5-21b-a3b-thinking
Provider Helicone
Family ernie
Status -
Knowledge Cutoff 2025-03
Release Date 2025-03-16
Input Modalities text
Output Modalities text
Context Window 128000
Input Limit -
Output Limit 8000
Tool Calling No
Reasoning Yes
Structured Output -
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $0.07
Output Cost / 1M tokens $0.28
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -