# 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.

- Page: https://models.litellm.ai/models/sonar-small-online
- Lab: Perplexity
- LiteLLM model name: `perplexity/sonar-small-online`
- Context window: 12,000 tokens
- Max output: 12,000 tokens
- Added to LiteLLM: March 2024
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Perplexity | `perplexity/sonar-small-online` | $0 | $0.28 | – | – | – | 12K |

## Cost examples

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

- Perplexity: $0.14

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="perplexity/sonar-small-online",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## 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.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json