AI Rate CardPerplexity: Sonar Reasoning Pro · fastrouter
Sonar Reasoning Pro is a high-performance reasoning model designed to tackle complex topics that require advanced multi-step thinking and deep content understanding. With a context length of 128k, it combines enhanced Chain-of-Thought (CoT) reasoning with a powerful information retrieval architecture to deliver well-structured, thoughtful responses. It provides twice as many citations on average compared to the standard Sonar Reasoning model, ensuring greater transparency and grounding. Ideal for tasks like competitive product analysis, exploring intricate scientific subjects, or creating detailed travel plans, Sonar Reasoning Pro excels in scenarios that demand both reasoning and reliable, well-sourced information.
Input, $/1M $2.00
Output, $/1M $8.00
Price alerts
API
OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.
| API base URL | |
|---|---|
| Endpoint | |
| Model id | |
curl
curl https://go.fastrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "perplexity/sonar-reasoning-pro", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'Python
import requests
r = requests.post(
"https://go.fastrouter.ai/api/v1/chat/completions",
headers={"Authorization": "Bearer YOUR_API_KEY"},
json={
"model": "perplexity/sonar-reasoning-pro",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
},
)
print(r.json())JavaScript
const r = await fetch("https://go.fastrouter.ai/api/v1/chat/completions", {
method: "POST",
headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
body: JSON.stringify({
"model": "perplexity/sonar-reasoning-pro",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}),
});
console.log(await r.json());Request (JSON)
{
"model": "perplexity/sonar-reasoning-pro",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}Response (JSON)
{
"id": "chatcmpl-...",
"object": "chat.completion",
"model": "perplexity/sonar-reasoning-pro",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Hi! How can I help?"
},
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 9,
"completion_tokens": 12,
"total_tokens": 21
}
}The address is taken from the provider's model list; check it against the provider's documentation.
Source: AI Rate Card, https://airatecard.com/en/c/offer%3Afastrouter%7Cperplexity/sonar-reasoning-pro, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/perplexity/sonar-reasoning-pro
Technical details
ID: offer:fastrouter|perplexity/sonar-reasoning-pro