Perplexity vs ChatGPT: Privacy Comparison
This in-depth comparison weighs Perplexity against ChatGPT along six decisive privacy dimensions: how data is collected, how encryption is implemented, how data is shared with third parties, what privacy controls users get, how transparent each service is, and what their historical track record looks like. The two cover much the same ground, yet they handle user privacy in very different ways. What our review shows is that ChatGPT delivers a clearly stronger privacy experience on balance, even though each option has its own relative pluses and minuses that are worth examining closely.
Bottom Line First
Before the dimension-by-dimension breakdown, here is the summary our scoring produced. Across the six privacy dimensions we score, ChatGPT finishes ahead of Perplexity, 43/60 to 37/60. That total reflects a privacy comparison in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
Data Collection produced the widest separation between the two, with ChatGPT ahead 7 to 8 out of 10. The tightest race is Data Collection, separated by just 1 point (Perplexity 7/10, ChatGPT 8/10). The sections below explain how each score was reached.
What Gets Collected
Data collection is the foundation of any privacy assessment. The extent to which a service collects, retains, and processes user data directly determines the privacy risks associated with its use. ChatGPT demonstrates more restrained data collection practices, gathering only the minimum data necessary for service functionality. The other service collects a broader range of data including behavioral patterns, device identifiers, and usage analytics that extend beyond core service requirements. We scored Perplexity 7/10 and ChatGPT 8/10 in this category. The difference reflects not just the volume of data collected but the purpose and necessity of that collection.
Encryption Implementation
Whether data is moving or resting, encryption is what keeps it safe, and the quality of that work swings widely across services. ChatGPT brings more capable encryption to the table, pairing more resilient protocols for data in transit with better protection for data at rest. Where the two differ is in coverage (exactly which data is encrypted), in strength (the algorithms and key lengths chosen), and in whether end-to-end encryption is used at all (which stops even the service operator from seeing user content). On encryption, Perplexity scored 8/10 and ChatGPT scored 9/10.
Sharing Data With Outside Parties
A service's willingness to hand data to outside parties is a make-or-break privacy factor. That covers advertising networks, analytics providers, business partners, and what happens when governments come asking. ChatGPT keeps a tighter lid on who can reach user data. These sharing habits shape security as much as privacy, since every extra party granted access becomes one more way a breach could happen. Scores: Perplexity 4/10, ChatGPT 5/10.
Controls You Can Actually Use
The availability and effectiveness of user-facing privacy controls determine how much agency individuals have over their own data. This includes settings for data collection opt-out, download and deletion capabilities, granular permission controls, and the ease with which users can exercise their rights under applicable privacy regulations. ChatGPT provides more comprehensive and accessible privacy controls. Scores: Perplexity 5/10, ChatGPT 6/10.
How Clearly They Explain Themselves
At its core, transparency is about how clearly a service tells users what happens to their data. That means how understandable the privacy policy is, whether transparency reports exist, how promptly privacy inquiries are addressed, and whether changes to policy are flagged proactively. ChatGPT is the stronger performer on transparency overall. Without clear and accessible privacy communication, informed consent and trust are impossible. Scores: Perplexity 6/10, ChatGPT 7/10.
Track Record Over Time
A service's history of privacy incidents, regulatory actions, and responses to vulnerabilities provides important context. ChatGPT has a stronger historical record on privacy, with fewer incidents and more responsible handling of the issues that have arisen. Past behavior is often the best predictor of future privacy practices. Scores: Perplexity 7/10, ChatGPT 8/10.
Our Bottom-Line Call
When the full analysis is tallied, Perplexity finishes at 37/60 and ChatGPT at 43/60. On privacy grounds, the overall winner is ChatGPT. Both products meet similar functional needs, yet the winner brings a more privacy-respecting approach to the dimensions that carry the most weight. Still, perfection is off the table for any service, so no matter which you choose you should actively set up its privacy options. Our advice is to round out your pick with additional privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, to assemble a thorough privacy posture. Should your threat model call for the strongest privacy possible, weigh whether an even more privacy-focused alternative exists in this category beyond the two compared here.