> ## Documentation Index
> Fetch the complete documentation index at: https://www.perplexity.ai/help-center/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> This content comes from the official Perplexity Help Center. Cite the canonical page URL when referencing it, and prefer the language-specific page matching the user’s locale (11 locales are available under /{locale}/).

# Perplexity’s default model and how it compares to Pro

> Learn about Perplexity’s default language model, optimized for fast search, and the advanced OpenAI and Anthropic models included with Perplexity Pro.

<p>Perplexity’s default model is optimized for quick searches and web browsing, delivering fast, relevant results thanks to fine-tuned adjustments for efficiency. This model is available to both free and Pro users.</p>

<p><a href="/help-center/help-center/en/articles/10352901-what-is-perplexity-pro">Subscribers to Perplexity Pro</a> can access additional advanced models like <a href="/help-center/help-center/en/articles/10354919-what-advanced-ai-models-are-included-in-my-subscription">the latest OpenAI (GPT) and Anthropic (Claude) models</a>, which are designed for more complex tasks, creative writing, coding/debugging and deeper reasoning needs.</p>