Qwen3 5 4B API Pricing

Qwen3 5 4B 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 Qwen3 5 4B 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

Qwen3 5 4B cost calculator

At EmpirioLabs AI's price ($0.04 input, $0.07 output per 1M tokens), 10,000 requests a day with 1,000 input and 500 output tokens each cost $0.75 a day, about $22.50 a month. Change the numbers for your workload, or compare it with other models.

Qwen3 5 4B features

Input: text, image. Output: text.

• Function calling
• Structured output
• Image input
• Reasoning
• Prompt caching

Use Qwen3 5 4B with LiteLLM

Call Qwen3 5 4B 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="empiriolabs/qwen3-5-4b",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: qwen3-5-4b
    litellm_params:
      model: empiriolabs/qwen3-5-4b
      # 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 $LITELLM_API_KEY" \
  -d '{
    "model": "qwen3-5-4b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Qwen3 5 4B FAQ

More Alibaba models

• Qwen3 5 Flash$0.029 / $0.287 per 1M tokens
• Qwen3 5 Omni Flash$0.80 / $4.40 per 1M tokens
• Qwen3 5 Omni Plus$2.80 / $16.60 per 1M tokens
• Qwen3 5 9B$0.09 / $0.13 per 1M tokens
• Qwen3.5 122B A10B Thinking$0.25 / $1.75 per 1M tokens
• Qwen3 5 27B$0.086 / $0.688 per 1M tokens
• Qwen3 5 35B A3B$0.057 / $0.459 per 1M tokens
• Qwen3 5 Plus$0.115 / $0.688 per 1M tokens