Perplexity Sonar Pro API

Search-grounded model with double the citations and a larger context window, tuned for complex queries needing in-depth, nuanced answers.

PerplexityResearch & Search200K contextProprietary Endpoint

About Perplexity Sonar Pro

Search-grounded model with double the citations and a larger context window, tuned for complex queries needing in-depth, nuanced answers.

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Perplexity Sonar Pro specs

Model ID
perplexity-sonar-pro
Provider
Perplexity
Category
Research & Search
Context window
200K tokens
Input
text, image, document
Output
text
Endpoints
POST /v1/chat/completions
POST /v1/responses
POST /v1/messages
POST /v1/search

Perplexity Sonar Pro API pricing

Live pay-as-you-go rates from the EmpirioLabs catalog. You are billed only for what you use, with no monthly minimum.

Type
Spec
Rate
Input
per 1M prompt tokens
$7.20
Output
per 1M generated tokens
$36.00
Base Fee (Low Context)
per request
$0.014
Base Fee (Medium Context)
per request
$0.024
Base Fee (High Context)
per request
$0.034
Compare on the full pricing page

How to call the Perplexity Sonar Pro API

Perplexity Sonar Pro serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id perplexity-sonar-pro. Get an API key from the EmpirioLabs dashboard.

cURL
curl https://api.empiriolabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "perplexity-sonar-pro",
    "messages": [
      {"role": "user", "content": "Write a haiku about the ocean."}
    ]
  }'
Python (OpenAI SDK)
from openai import OpenAI

client = OpenAI(
    base_url="https://api.empiriolabs.ai/v1",
    api_key="YOUR_EMPIRIOLABS_API_KEY",
)

response = client.chat.completions.create(
    model="perplexity-sonar-pro",
    messages=[{"role": "user", "content": "Write a haiku about the ocean."}],
)
print(response.choices[0].message.content)
Full Perplexity Sonar Pro API reference

Perplexity Sonar Pro API parameters

Request parameters supported by the Perplexity Sonar Pro API on EmpirioLabs. Defaults apply when a field is omitted.

ParameterTypeDefaultRange / valuesDescription
temperaturenumber0.20 to 2Sampling temperature. 0 = deterministic, 2 = maximum randomness.
top_pnumber0.90 to 1Nucleus sampling probability mass. Lower = more focused.
max_tokensnumber40961 to 32768Maximum tokens in the response.
search_context_sizeenummediumlow, medium, highHigher context gives better answers but increases the base fee per request.
search_modeenumdefaultdefault, academic, secFilter search results by source type. Academic = scholarly papers, SEC = financial filings.
search_domain_filterstring--Comma-separated domains. Prefix with '-' to exclude. Max 20.
search_language_filterstring--Comma-separated ISO 639-1 codes (2 letters). Max 10.
search_after_datestring--Use YYYY-MM-DD. Only include sources after this date.
search_before_datestring--Use YYYY-MM-DD. Only include sources before this date.
search_recency_filterenumnonenone, hour, day, week, month, yearRelative time filter. Cannot be combined with specific dates.
last_updated_after_filterstring--Use YYYY-MM-DD. Only include sources after this date.
last_updated_before_filterstring--Use YYYY-MM-DD. Only include sources before this date.
countrystring--Two-letter ISO 3166-1 code (e.g. US, GB) for biasing results to a country.
regionstring--State or province name for location bias.
8 more parameters in the docs

Good to know

Double the citations and larger context window vs Sonar. Max output 8K tokens.

Perplexity Sonar Pro API: common questions

How much does the Perplexity Sonar Pro API cost?

On EmpirioLabs, Perplexity Sonar Pro is billed pay as you go: Input $7.20 per 1M prompt tokens; Output $36.00 per 1M generated tokens; Base Fee (Low Context) $0.014 per request. The live rate card on this page always matches what the API charges.

What is the context window of Perplexity Sonar Pro?

Perplexity Sonar Pro supports a 200K-token context window.

Is the Perplexity Sonar Pro API OpenAI-compatible?

Yes. Perplexity Sonar Pro serves the OpenAI-compatible Chat Completions API, so existing OpenAI SDKs work by pointing base_url at https://api.empiriolabs.ai/v1 and setting the model id to perplexity-sonar-pro.

Can I try Perplexity Sonar Pro in the browser before integrating?

Yes. The EmpirioLabs playground runs Perplexity Sonar Pro in the browser with the same parameters the API exposes, so you can test prompts before writing code.

How do I get a Perplexity Sonar Pro API key?

Create an EmpirioLabs account, then generate a key under API Keys in the dashboard. Billing is pay-as-you-go credits, so you only pay for the requests you make.

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