In short. Pro users can select an eligible model before a Perplexity Pro Search session, subject to plan and usage limits.
Definition: Yes. Perplexity documents a pre-search model selector for Pro Search: before a Pro user starts a search session, the user can choose among eligible AI models. The available choices depend on the plan and mode.
Key facts
- Perplexity's Pro Search help page says that Pro users can choose a model before starting a search session.
- The same page names Sonar, GPT-5, Claude Sonnet 4.6, and Gemini 3.1 Pro as examples of selectable models.
- Perplexity's Pro help page says that Pro subscribers have extended access to Pro Search and lists model choices for detailed answers with extensive sources.
- Perplexity's model availability documentation says that Search supports Best or an eligible model selected manually, subject to plan and usage limits.
What does the pre-search selector do?
The selector chooses the model for the Search request before the session begins. Perplexity's Pro Search documentation places model selection at the start of its process, before the system conducts multiple web searches. It describes those searches as drawing from articles, academic papers, forums, videos, and other sources according to the selected focus.
Pro Search then reads, analyzes, and compiles information into an answer. The same documentation says that each answer includes direct links to original sources and that follow-up questions retain context from earlier interactions. The selector therefore belongs to the search session's setup, while the subsequent work includes retrieval, synthesis, and conversation.
Which models are available?
Perplexity's Pro documentation names Sonar, GPT-5.2, Claude Sonnet 4.6, and Gemini 3.1 Pro for detailed answers with extensive sources. It also names Sonnet 4.6 Thinking and Grok 4 for complex analytical questions, with some choices identified for Max users. Access to advanced model queries may be limited during periods of heavy usage.
The model availability page gives the broader rule: Search can use Best, which automatically selects a suitable model for each query, or an eligible model selected manually. The page says that paid plans can select models subject to usage limits. It also says that the model list is a snapshot as of 17 October 2026 and that the model selector is the source of truth for an account. A model name shown in an older help page can therefore differ from the current selector.
Can the model change after the session starts?
Yes. Perplexity's Pro documentation says that search modes and models can be switched in an existing session through the search box. This is separate from the pre-search choice documented in the Pro Search process. The same documentation describes Pro Search as a feature for complex questions and says that it provides comprehensive responses with multiple references when the listed models are used.
The documented behavior concerns the Perplexity interface. It does not specify a permanent model inventory, and it does not state that every model is available to every plan. The current model page instead directs users to the selector for account-specific availability and identifies usage limits as a condition of manual selection.
Related terms
FAQ
Can a Free plan user select an advanced model before searching?
The model availability documentation says that Free plan users can use Best and a limited number of Pro Searches, while manual selection of an advanced Search model is unavailable to them. Paid plans can select eligible models subject to usage limits.
Is the Pro Search model list fixed?
No fixed list is documented. Perplexity describes the model list as a snapshot as of 17 October 2026 and identifies the model selector as the source of truth for an account.
Can the model be changed after a session starts?
Yes. Perplexity says that search modes and models can be switched in an existing session through the search box.
Sources
- Perplexity, "What is Pro Search?", updated 3 September 2026
- Perplexity, "What is Perplexity Pro?", updated 29 August 2026
- Perplexity, "What advanced AI models are included in my subscription?", updated 17 October 2026
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