Skip to content
AI.info

Model Tracker

Sonar Reasoning Pro

Sonar Reasoning Pro is an AI model made by Perplexity AI Inc.. It is deprecated.

Perplexity AI Inc.

Released
Not confirmed: The maker's cited documentation maps Sonar Reasoning Pro to an Agent API preset but does not state its first availability date. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Status
Deprecated — docs.perplexity.ai, read 16 October 2026
Takes
Not confirmed: The maker's cited model and migration pages do not specify the input modalities for this model. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Returns
Not confirmed: The maker's cited model and migration pages do not specify the output modalities for this model. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Open weights
Not confirmed: The cited maker pages do not state whether Sonar Reasoning Pro has open weights. Page: Agent API Models. Line: "Perplexity’s grounded search model."
Licence
Not confirmed: The cited maker pages do not name a licence for Sonar Reasoning Pro. Page: Agent API Models. Line: "Perplexity’s grounded search model."
Context window
Not confirmed: The cited maker pages do not print a context-window value for Sonar Reasoning Pro. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Longest answer
Not confirmed: The cited maker pages do not print a maximum-output-token value for Sonar Reasoning Pro. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Knowledge cutoff
Not confirmed: The cited maker pages do not state a knowledge-cutoff date for Sonar Reasoning Pro. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
API price, input
Not confirmed: The maker's current model pricing table does not list Sonar Reasoning Pro, so it does not confirm an input-token price for it. Page: Agent API Models. Line: "`perplexity/sonar` | 0.25 | 2.50 | 0.0625 | — | —"
API price, output
Not confirmed: The maker's current model pricing table does not list Sonar Reasoning Pro, so it does not confirm an output-token price for it. Page: Agent API Models. Line: "`perplexity/sonar` | 0.25 | 2.50 | 0.0625 | — | —"
Where
API — docs.perplexity.ai, read 16 October 2026
Parameters
Not confirmed: The cited maker pages do not publish a parameter count for Sonar Reasoning Pro. Page: Migrate from Sonar to the Agent API. Line: "Sonar Reasoning Pro | `low` | Multi-hop browsing and wide aggregation across many sources. | Far stronger on step-by-step reasoning and on chaining evidence across several rounds of search."
Model card
Not confirmed: The cited maker pages do not provide a model card or system card for Sonar Reasoning Pro. Page: Agent API Models. Line: "Perplexity’s grounded search model."

Questions

Is Sonar Reasoning Pro still available?

It is deprecated: Perplexity AI Inc. has announced the date it will retire it.

More from Perplexity AI Inc.

Sources

  1. Migrate from Sonar to the Agent API (read 16 October 2026)
  2. Agent API Models (read 16 October 2026)
  3. Pricing (read 16 October 2026)

All of the Model Tracker