Perplexity: Sonar Reasoning Pro

Public pricingIntelligence 79/100Medium memoryVisionDeep thinking

Perplexity: Sonar Reasoning Pro is a multimodal model for multimodal reasoning and analysis. It combines multimodal input handling and deep reasoning and planning with a 128K tokens context window and a balanced-cost profile. Use it for multimodal reasoning and analysis when quality, speed, and cost matters.

Input

$2.00/1M

Output

$8.00/1M

Cached

$0.50/1M

Batch

$1.00/1M

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What would Sonar Reasoning Pro cost you?

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Technical specifications

Sonar Reasoning Pro at a glance.

Memory

128,000

tokens

Max reply

8,192

tokens

Memory tier

Medium

a long report or a codebase file

Tokenizer

—

Released

Mar 2025

Training cutoff

Oct 2024

Availability

Public pricing

Status

active

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick Sonar Reasoning Pro

  • Multi-step reasoning, research agents, or hard math.
  • Screenshot analysis, image understanding, or document OCR.
  • Multimodal pipelines mixing text + images.

When to look elsewhere

  • You need tool-use / function calling for agent workflows.

Alternatives

Similar models to compare.

FAQ

Sonar Reasoning Pro — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, Sonar Reasoning Pro costs roughly $470 per month. Input is $2.00 /1M tokens and output is $8.00 /1M tokens.
Sonar Reasoning Pro has a 128,000-token context window (medium memory — a long report or a codebase file). That means you can fit about 24,000 words of input and history in a single call.
Beyond text generation, Sonar Reasoning Pro supports understanding images, deep step-by-step reasoning, strict JSON output. It streams replies by default.
Sonar Reasoning Pro was released in March 2025, with training data cut off around October 2024.
Models in a similar class include Gemini 3.1 Pro Preview, Gemini 3.1 Pro Preview Custom Tools, o3. The "Similar models" section below this FAQ links into each.

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