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Sonar Deep Research

PerplexityReleased Mar 7, 2025

Sonar Deep Research is a research-focused model designed for multi-step retrieval, synthesis, and reasoning across complex topics. It autonomously searches, reads, and evaluates sources, refining its approach as it gathers...

Try in playground
Context window
128K tokens
Input
text
Output
text
Tokenizer
Other
Released
Mar 7, 2025
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$2.00$0.060$2.06
Output$8.00$0.240$8.24

Supported parameters

  • frequency_penalty
  • include_reasoning
  • max_tokens
  • presence_penalty
  • reasoning
  • temperature
  • top_k
  • top_p
  • web_search_options

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model perplexity/sonar-deep-research.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "perplexity/sonar-deep-research",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="perplexity/sonar-deep-research",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "perplexity/sonar-deep-research",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does Sonar Deep Research cost via API?
Through OpenKey, Sonar Deep Research costs $2.06 per 1M input tokens and $8.24 per 1M output tokens. That is the provider price ($2.00 / $8.00) plus a flat 3% fee — nothing else.
What is Sonar Deep Research's context window?
Sonar Deep Research accepts up to 128K tokens of context.
Is Sonar Deep Research OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "perplexity/sonar-deep-research" using any OpenAI SDK — only the base URL and API key change.
What inputs does Sonar Deep Research support?
Sonar Deep Research accepts text input and produces text output.

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