Perplexity: Sonar Reasoning Pro
The Sonar Reasoning Pro is an AI model developed by Perplexity that supports text and image input modalities. It has a context length of 128,000 tokens, allowing for extensive information processing. The model also enables reasoning capabilities, but does not provide access to tools or structured output. For users seeking a paid option with robust performance, Sonar Reasoning Pro may be worth considering, particularly those who can justify the $2 input and $8 output token costs per million characters. Its blended benchmark score of 28.7 across one independent evaluation indicates competitive standing in this space; however, further analysis or additional benchmarks are necessary to fully assess its strengths and weaknesses.
Benchmark results
Independent, published benchmarks. Blended score 28.7 across 1 benchmark, last refreshed 2026-09-04. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 29.8 |
- Model ID
- perplexity/sonar-reasoning-pro
- Vendor
- perplexity
- Released
- March 2025
- Tokenizer
- Other
- Input Modalities
- text, image
- Output Modalities
- text
- Max Output
- 115,200 tokens
- Tool Calling
- not supported
- Structured Output
- not supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $2.00/M input and $8.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.07 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.40 |
| A month of a busy support chatbot | 5M in / 2M out | $26.00 |
Similar models
Quick answers
- How much does Perplexity: Sonar Reasoning Pro cost?
- $2.00 per million input tokens and $8.00 per million output tokens.
- What is Perplexity: Sonar Reasoning Pro's context window?
- 128,000 tokens, roughly 192 pages of text in a single request.
- Does Perplexity: Sonar Reasoning Pro support tool calling?
- It supports a reasoning mode.
- Can Perplexity: Sonar Reasoning Pro process images?
- Yes, it accepts image input.