Ernie 4.5 21B A3B Thinking API Pricing

Ernie 4.5 21B A3B Thinking pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What Ernie 4.5 21B A3B Thinking costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

Ernie 4.5 21B A3B Thinking features

• Reasoning

Use Ernie 4.5 21B A3B Thinking with LiteLLM

Call Ernie 4.5 21B A3B Thinking through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="novita/baidu/ernie-4.5-21B-a3b-thinking",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: ernie-4.5-21b-a3b-thinking
    litellm_params:
      model: novita/baidu/ernie-4.5-21B-a3b-thinking
      # credentials: see the provider's LiteLLM docs page

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "ernie-4.5-21b-a3b-thinking",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Ernie 4.5 21B A3B Thinking FAQ

More Baidu models

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• Ernie 4.5 VL 28B A3B$0.14 / $0.56 per 1M tokens
• Ernie 4.5 VL 28B A3B Thinking$0.39 / $0.39 per 1M tokens
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• Ernie 5.1$0.5634 / $2.535 per 1M tokens
• Ernie 4p5 21B A3B Pt$0.10 / $0.10 per 1M tokens
• Ernie 4p5 300B A47B Pt$0.10 / $0.10 per 1M tokens