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Perplexity: sonar-reasoning-pro:free
sonar-reasoning-pro:free
128K context128K outReasoningVisionWeb search
Released Mar 7, 2025Updated Jun 20, 2026
Sonar Reasoning is a reasoning model provided by Perplexity based on DeepSeek R1. It allows developers to utilize long chain of thought with built-in web search. Sonar Reasoning is uncensored and hosted in US datacenters.
Mode chatTokenizer Other
Pricing
Input price
$0.00/ 1M tokens
Output price
$0.00/ 1M tokens
Context window 127K tokensCompatible endpoints openaiVendor Perplexity
Uptime
Performance
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Usage & Ranking
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Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| frequency_penalty | All providers | - |
| include_reasoning | All providers | - |
| max_tokens | All providers | - |
| presence_penalty | All providers | - |
| reasoning | All providers | - |
| temperature | All providers | - |
| top_k | All providers | - |
| top_p | All providers | - |
| web_search_options | All providers | - |