Perplexity · Released Jan 1, 2024Sonar Reasoning Pro
Web-grounded Sonar for multi-step research questions that need cited reasoning.
- Capability
- —No ECI score yet
- Input
- $2.00per 1M tokens
- Output
- $8.00per 1M tokens
- Context
- 128K4K max output
What it costs
- Input
- $2.00per million tokens
- Output
- $8.00per million tokens
- Blended (3:1)
- $3.50pricier than 80% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $8.00 |
| Team assistant25M input + 5M output tokens | $90.00 |
| Production app250M input + 50M output tokens | $900.00 |
Official Perplexity API price, as listed on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for Sonar Reasoning Pro yet.
The details
- Lab
- Perplexity
- Released
- Jan 1, 2024
- Knowledge cutoff
- Sep 1, 2025
- Context window
- 128,000 tokens
- Max output
- 4,096 tokens
- Inputs
- Text, Images
- Output
- Text
- Reasoning
- Adjustable effort minimal · low · medium · high
- Tool calling
- No
- Structured output
- No
- Weights
- Proprietary
- API model ID
sonar-reasoning-proon Perplexity- Availability
- 4 API providerslisted on models.dev
More from Perplexity
About Sonar Reasoning Pro
How much does Sonar Reasoning Pro cost?
Sonar Reasoning Pro costs $2.00 input / $8.00 output per million tokens (official Perplexity API price). At a 3:1 input-to-output mix that is $3.50 per million tokens, more expensive than 80% of the 360 priced models we track.
What is the context window of Sonar Reasoning Pro?
Sonar Reasoning Pro accepts up to 128,000 tokens per request and can write up to 4,096 tokens in one response.
How good is Sonar Reasoning Pro?
Epoch AI has not published a Capabilities Index score for Sonar Reasoning Pro yet.
Is Sonar Reasoning Pro open source?
No. Sonar Reasoning Pro is proprietary; you use it through Perplexity’s API or partner platforms.
What inputs does Sonar Reasoning Pro support?
Sonar Reasoning Pro accepts text and images and replies in text. It is a reasoning model with minimal, low, medium and high effort settings, does not support tool calling.
When was Sonar Reasoning Pro released?
Perplexity released Sonar Reasoning Pro on Jan 1, 2024. Its training data runs to Sep 1, 2025.
What are the best alternatives to Sonar Reasoning Pro?
The closest current models from other labs on capability, price and release date are Qwen Max (Alibaba (Qwen), $1.60 / $6.40), Command R+ (Cohere, $2.50 / $10.00), Palmyra X4 (Writer, $2.50 / $10.00) and Step 1 (32K) (StepFun, $2.05 / $9.59).