Perplexity: Sonar Reasoning Pro

Web-grounded Sonar for multi-step research questions that need cited reasoning

Model lab: Perplexity
Model family: sonar-reasoning

Modalitiestext, image → text

Context window128,000

Maximum output4,096

InputUSD 1.6 / 1M tokens

OutputUSD 6.4 / 1M tokens

Try now

Quickstart

Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to perplexity/sonar-reasoning-pro.

import os
import requests

base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "perplexity/sonar-reasoning-pro"

response = requests.post(
    f"{base_url}/chat/completions",
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    json={
        "model": model_id,
        "messages": [{"role": "user", "content": "Hello!"}],
        "stream": False,
    },
    timeout=60,
)
response.raise_for_status()
print(response.json())

Use the familiar OpenAI-style chat request format to make model integration easier.

Sonar Reasoning Pro API Pricing

Type	Price information
Input	USD 1.6 / 1M tokens
Output	USD 6.4 / 1M tokens

Benchmarks

Intelligence Index · v4.311.8

Coding Index—

Agentic Index—

Performance

Performance trends

Throughput91.0 tok/sCurrent

Time to first token1.3 sCurrent

End-to-end latency7.5 sCurrent

Throughput

Current91.0 tok/s

Window average89.7 tok/s

Time to first token

Current1.3 s

Window average1.4 s

End-to-end latency

Current7.5 s

Window average7.5 s

Tail latency (P99)

Current17.0 s

Window average16.5 s

Prompt cache hit rate

Current31.5%

Window average22.5%

Error rate

Current0.0%

Window average0.1%

Availability

Uptime100%At least one provider responded

Availability100%Requests actually served

Error rate0%Share of failed requests

Served requests, hour by hour

24 hours agoNow

Sonar Reasoning Pro Compare models

Model	Input price	Output price	Context window	Capabilities
Sonar Reasoning ProThis page	USD 1.6 / 1M tokens	USD 6.4 / 1M tokens	128,000	Text output · Reasoning
Sonar Pro	USD 2.4 / 1M tokens	USD 12 / 1M tokens	200,000	Text output
DeepSeek V4.1 Flash 1017	USD 0.028 / 1M tokens · Quantization fp4	USD 0.4 / 1M tokens · Quantization fp4	1,000,000	Text output · Reasoning · Tool calling
Mistral Large 4	USD 0.544 / 1M tokens	USD 1.672 / 1M tokens	1,048,576	Text output · Reasoning · Tool calling
LongCat-2.5-Preview	USD 0.6 / 1M tokens	USD 2.36 / 1M tokens	1,000,000	Text output · Reasoning · Tool calling

Model specifications

Input: text, image
Output: text
Context window: 128,000
Maximum output: 4,096
Release date: 2024-01-01
Attachments: Yes
Reasoning: Yes
Tool calling: No
Temperature setting: Yes
Open weights: No

Frequently asked questions

What is Sonar Reasoning Pro for?

Web-grounded Sonar for multi-step research questions that need cited reasoning

What inputs and outputs does Sonar Reasoning Pro support?

Recorded inputs: text, images; outputs: text.

How is Sonar Reasoning Pro priced?

The pricing table shows the current recorded Moduck price. For example: Input USD 1.6 / 1M tokens; Output USD 6.4 / 1M tokens. See the pricing table for all units, variants, and conditions.

What specifications are recorded for Sonar Reasoning Pro?

Current model records list Context window 128,000 tokens; Maximum output 4,096 tokens.

What model parameter does the Quickstart use?

The example uses perplexity/sonar-reasoning-pro. This value comes from the page identifier and is not confirmed as a callable Moduck public ID.

Can I call this model through the Moduck API now?

This page has no verified Moduck API call for this model. A Quickstart example or reserved ID does not establish access; check the models available to your account.