Baidu
Ernie 4.5 21B A3B Thinking
Reasoning model for deliberate analysis, multi-step problem solving, and tool use
Model facts
- Context window
- 131K tokens
- Maximum output
- 66K tokens
- Cheapest paid input
- $0.07 per 1M tokens
- Cheapest paid output
- $0.28 per 1M tokens
- Open weights
- yes
- Providers
- 2
Capabilities and modalities
reasoning, temperature control, open weights, text.
Observed price history
- 2026-08-24: $0.07 input / $0.28 output per 1M tokens
API providers
- Helicone (Baidu) — model id ernie-4.5-21b-a3b-thinking; $0.07 input / $0.28 output per 1M tokens; provider documentation
- NovitaAI — model id baidu/ernie-4.5-21B-a3b-thinking; $0.07 input / $0.28 output per 1M tokens; provider documentation