LiteLLMModels

Sonar Small Online API Pricing

As of October 10, 2026, Sonar Small Online costs $0 per 1M input tokens and $0.28 per 1M output tokens on Perplexity. It has a 12,000-token context window and returns up to 12,000 tokens per response.

By PerplexityModel ID perplexity/sonar-small-onlinePrices updated Checked
Input
$0 / 1M tokens
Output
$0.28 / 1M tokens
Context window
12,000 tokens
Max output
12,000 tokens
Providers
1
Added to LiteLLM
March 2024

Sonar Small Online 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.

ProviderModel name in LiteLLMInputOutputContext
Perplexityperplexity/sonar-small-online$0$0.2812K

What Sonar Small Online costs in practice

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

Perplexity$0.14

Use Sonar Small Online with LiteLLM

Call Sonar Small Online 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="perplexity/sonar-small-online",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: sonar-small-online
    litellm_params:
      model: perplexity/sonar-small-online
      api_key: os.environ/PERPLEXITYAI_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": "sonar-small-online",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Sonar Small Online FAQ

How much does Sonar Small Online cost?

Sonar Small Online costs $0 per 1M input tokens and $0.28 per 1M output tokens on Perplexity.

What is the context window of Sonar Small Online?

Sonar Small Online has a 12,000-token context window and returns up to 12,000 tokens per response.

Which providers offer Sonar Small Online?

Sonar Small Online is available from Perplexity through LiteLLM, using the model name perplexity/sonar-small-online.

How do I call Sonar Small Online with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="perplexity/sonar-small-online", 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.

When did LiteLLM add Sonar Small Online?

Sonar Small Online was added to LiteLLM's model price file in March 2024.

Sources

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

LiteLLM docs: Perplexity.

Provider pages: Perplexity.