Grok vs Perplexity (2026): Which AI Tool Is Better?

Both are popular AI chat assistants. Here is how Grok and Perplexity stack up on price, strengths and weaknesses, and which one we would pick.

Grok

xAI's assistant with Grok Imagine image and video generation

7.2 /10

Pricing: Freemium

Pros

Image and video generation (Grok Imagine) inside the chat app
Imagine Video 1.5 adds image and voice references and native 1080p
Real-time access to posts on X for trend research
Public API for text, image and video models

Cons

Low-res (480p, 6-second) video on the cheapest tier
Top tiers are expensive ($100-$300 per month)
xAI's pricing and terms pages blocked automated reading for this check
Content moderation and brand-safety controversies around Grok

Visit Grok ↗

Perplexity

Answer engine that cites sources, with a choice of GPT, Claude, Gemini and Grok

8.1 /10

Pricing: Freemium

Pros

Every answer links to its sources, which speeds up fact-checking
Pro lets you switch between GPT, Claude, Gemini, Grok and Perplexity's Sonar
Short Veo video clips on Pro and Max
Separate Sonar API for building research into your own tools

Cons

Research-first: long-form drafting is weaker than in dedicated writing apps
Video credits are small (5 per month on Pro, 15 on Max)
Top models (GPT-5.6 Sol, Claude Opus 5) need the $200 Max plan
Vendor pricing pages could not be read for this check

Visit Perplexity ↗

Grok vs Perplexity at a glance

	Grok	Perplexity
Editor score	7.2 / 10	8.1 / 10
Pricing model	Freemium	Freemium
Starting price	Free	Free
Reader upvotes	0	0
Best for	chatbot, xai, image-generation	research, search, citations
Model choice	No	Yes
Commercial use	No	No
No watermark (free)	No	No
API	Yes	Yes
Official MCP server	No	No
MCP client	No	No
Agent Skills	No	No
Brand kit	No	No
Teams	No	Yes
Content Credentials	No	No
Mobile app	Yes	Yes
20+ languages	No	No
Makes	Social media posts, Images & illustrations, Short-form video, Ad & marketing copy	Blog posts & articles, SEO content, Images & illustrations, Short-form video
AI models inside	1	6

Our pick

Perplexity edges it with a score of 8.1 versus 7.2. Perplexity is the better fit if you value: every answer links to its sources, which speeds up fact-checking, pro lets you switch between gpt, claude, gemini, grok and perplexity's sonar. Choose Grok instead if you need: image and video generation (grok imagine) inside the chat app, imagine video 1.5 adds image and voice references and native 1080p.