Sonar

Default
A lightweight, cost-effective search model optimized for quick, grounded answers with real-time web search.
A lightweight, cost-effective search model optimized for quick, grounded answers with real-time web search.

Sonar is an AI model from Perplexity, available on ZeroTwo. It costs $1.00 per million input tokens and $1.00 per million output tokens, has a 128,000-token context window, and has a knowledge cutoff of Real-time.

Intelligence
Good
Speed
Extremely Fast
Price
$1.00 • $1.00
Input • Output
Input
Text
Output
Text

A lightweight, cost-effective search model optimized for quick, grounded answers with real-time web search.

128,000 context window
Real-time knowledge cutoff
Pricing
Pricing is based on the number of tokens used. For tool-specific models, like search and computer use, there's a fee per tool call. See details in the pricing page.

Token pricing excludes the per-request search fee of $5/$8/$12 per 1,000 requests for low/medium/high search context size. Perplexity publishes these rates for Sonar Chat Completions, which it supports until September 27, 2026, after which the model moves to the Agent API.

Text tokens
Per 1M tokens
∙
Batch API price
Input
$1.00
Cached input
Output
$1.00
Quick comparison
Input
Cached input
Output
Sonar
$1.00
Modalities
Text
Input and output
Image
Not supported
Audio
Not supported
Endpoints
Chat Completions
v1/chat/completions
Responses
v1/responses
Batch
v1/batch
Realtime
v1/realtime
Assistants
v1/assistants
Fine-tuning
v1/fine-tuning
Embeddings
v1/embeddings
Image Generation
v1/images/generations
Image Edit
v1/images/edits
Speech Generation
v1/audio/speech
Transcription
v1/audio/transcriptions
Translation
v1/translations
Moderation
v1/moderations
Completions (legacy)
v1/completions
Features
Streaming
Supported
Function calling
Supported
Structured outputs
Not supported
Fine-tuning
Not supported
Distillation
Not supported
Fast response
Not supported
Cost efficient
Not supported
Tools
Tools supported by this model when using the Responses API.
Web search
Supported
Code interpreter
Not supported
File search
Not supported
Image generation
Not supported
MCP
Not supported
Snapshots
Snapshots let you lock in a specific version of the model so that performance and behavior remain consistent. Below is a list of all available snapshots and aliases for Sonar.
sonar
Sonar

Questions

How much does Sonar cost?

Sonar is priced at $1.00 per million input tokens and $1.00 per million output tokens. On ZeroTwo it is included in your plan's credits rather than billed per token.

What is Sonar's context window?

Sonar accepts up to 128,000 tokens of context.

What is Sonar's knowledge cutoff date?

Sonar has a training knowledge cutoff of Real-time. For anything later than that, use a model with web search enabled.

Can I use Sonar for free?

You can try Sonar on ZeroTwo's free plan, which includes a monthly credit allowance across every model in the catalogue. Heavier use moves to a paid plan rather than a per-token bill.