# Grok vs Perplexity

> Grok: xAI's AI assistant with live X and web search, image and voice tools
> Perplexity: AI answer engine that searches the live web and cites its sources

- Grok profile: https://finderatlas.com/tools/grok
- Perplexity profile: https://finderatlas.com/tools/perplexity
- Comparison page: https://finderatlas.com/compare/grok-vs-perplexity
- Last reviewed: October 2026

## Verdict

Grok and Perplexity are both AI Assistants tools. Perplexity scores higher in FinderAtlas's editorial review (8.7 vs 8.3 out of 10). Both have a free plan or trial.

### Choose Grok if

- You want a tool built for questions that need current information from X and the web.
- Searches both X posts and the web for current information.
- Free tier available without a subscription.

### Choose Perplexity if

- You want a tool built for answering factual and current-events questions with checkable sources, and running multi-step web research.
- Every answer links to numbered sources, so claims are easy to check.
- Free plan includes search with citations.

## Pricing

| | Grok | Perplexity |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Grok | Perplexity |
| --- | --- | --- |
| Live Search | Yes | Not listed |
| Chat and Reasoning | Yes | Not listed |
| File and Image Analysis | Yes | Not listed |
| Grok Imagine | Yes | Not listed |
| Voice Mode | Yes | Not listed |
| Conversation Import | Yes | Not listed |
| Shared Subscription | Yes | Not listed |
| xAI API | Yes | Not listed |
| Cited answers | Not listed | Yes |
| Pro Search | Not listed | Yes |
| Research | Not listed | Yes |
| Model selection | Not listed | Yes |
| File uploads | Not listed | Yes |
| Perplexity Computer | Not listed | Yes |
| Comet browser | Not listed | Yes |
| Perplexity API | Not listed | Yes |

## Platforms

| Platform | Grok | Perplexity |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Browser Extension | No | No |

## Grok strengths

- Searches both X posts and the web for current information
- Free tier available without a subscription
- Image and video generation in the same app as chat
- Separate API with long context windows (up to 1M tokens on some models)
- Real-time voice mode in the mobile apps

## Grok limitations

- Free usage is capped, and xAI does not publish the exact limit
- Usage limits are given only as multiples of the Plus plan, not as fixed numbers
- Answers drawing on X posts can reflect unverified social content
- The App Store rates the app 16+ because of mature themes

## Perplexity strengths

- Every answer links to numbered sources, so claims are easy to check
- Free plan includes search with citations
- Paid plans offer a choice of advanced models from several providers
- Available on web, iOS, Android and through a developer API
- Separate Comet browser integrates the assistant into browsing

## Perplexity limitations

- Free plan is limited to 3 Pro Searches per day and 1 Research query per month
- Pro and Max limits are described as weekly or monthly allowances rather than fixed numbers
- Max costs $200 per month, and Enterprise Max costs $325
- Answers can still contain errors, so the cited sources need checking

## FAQ

**Is Grok better than Perplexity?**

It depends on your workflow. Grok is built for questions that need current information from X and the web. Perplexity is built for answering factual and current-events questions with checkable sources, and running multi-step web research.

**What are the key feature differences between Grok and Perplexity?**

Grok: xAI's AI assistant with live X and web search, image and voice tools. Perplexity: AI answer engine that searches the live web and cites its sources. Grok is rated 4.0/5 from 1 user review.

**Does Grok or Perplexity have a free plan?**

Yes, both do. Grok is freemium and Perplexity is freemium, and each has a free plan or trial.

**Which is cheaper, Grok or Perplexity?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.