LiteLLMModels

Qwen3.5 9B API Pricing

As of October 10, 2026, Qwen3.5 9B costs $0.10 per 1M input tokens and $0.15 per 1M output tokens from DeepInfra, the lowest of 2 providers. It has a 262,144-token context window.

By AlibabaModel ID deepinfra/Qwen/Qwen3.5-9BPrices updated Checked
Input
$0.10 / 1M tokens
Output
$0.15 / 1M tokens
Context window
262,144 tokens
Providers
2
Added to LiteLLM
August 25, 2026

Qwen3.5 9B pricing by provider

2 listings across 2 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

ProviderModel name in LiteLLMInputOutputContext
DeepInfradeepinfra/Qwen/Qwen3.5-9B$0.10$0.15256K
Together AItogether_ai/Qwen/Qwen3.5-9B$0.17$0.25256K

What Qwen3.5 9B costs in practice

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

DeepInfra$0.275
Together AI$0.465

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

DeepInfra$1.03
Together AI$1.75

Qwen3.5 9B features

Use Qwen3.5 9B with LiteLLM

Call Qwen3.5 9B 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.

Python SDK
from litellm import completion

response = completion(
    model="deepinfra/Qwen/Qwen3.5-9B",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: qwen3.5-9b
    litellm_params:
      model: deepinfra/Qwen/Qwen3.5-9B
      api_key: os.environ/DEEPINFRA_API_KEY
Call the proxy
curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "qwen3.5-9b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Qwen3.5 9B FAQ

How much does Qwen3.5 9B cost?

Qwen3.5 9B costs $0.10 per 1M input tokens and $0.15 per 1M output tokens from DeepInfra, the lowest of 2 providers.

What is the context window of Qwen3.5 9B?

Qwen3.5 9B has a 262,144-token context window.

Which providers offer Qwen3.5 9B?

Qwen3.5 9B is available from 2 providers through LiteLLM: DeepInfra and Together AI. The lowest price is on DeepInfra.

How do I call Qwen3.5 9B with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="deepinfra/Qwen/Qwen3.5-9B", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does Qwen3.5 9B support?

Qwen3.5 9B supports function calling, parallel tool calls, structured output, image input and reasoning.

When did LiteLLM add Qwen3.5 9B?

Qwen3.5 9B was added to LiteLLM's model price file on August 25, 2026.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: DeepInfra, Together AI.

Provider pages: DeepInfra, Together AI.