Perplexity vs Grok vs Copilot: Best AI Search & Assistant 2026
Three AI-powered search/assistant tools compared with Australian pricing. Which one actually helps you get answers?
AINow Take
Perplexity is the best research tool of the three. Grok is best for casual Q&A. Copilot wins if you're in the Microsoft ecosystem. For most Australians, Perplexity Pro at ~$31 AUD/month is the best investment for serious research.
ChatGPT and Claude get all the attention, but Perplexity, Grok (xAI), and Microsoft Copilot are major players too. Here’s how they compare.
At a Glance
| Perplexity | Grok | Copilot | |
|---|---|---|---|
| Free tier | Yes (limited) | Yes (X users) | Yes (limited) |
| Paid tier | ~$31 AUD/mo (Pro) | ~$27 AUD/mo (SuperGrok) | ~$35 AUD/mo (Copilot Pro) |
| Best for | Research with citations | Casual conversation | Microsoft integration |
| Web search | Excellent (built-in) | Good (X data) | Good (Bing) |
| Source citations | Yes, inline | Limited | Yes |
| File upload | Yes | No | Yes |
| Image gen | No | Yes (Aurora) | Yes (DALL-E) |
Detailed Comparison
Perplexity — Best for Research
- Free: Limited Pro searches per day
- Pro (~$31 AUD/mo): Unlimited Pro searches, file uploads, API access
- Key strength: Gives answers with inline citations to real sources
- Best for: Students, researchers, anyone who needs verified information
Grok — Best for Casual Use
- Free: Available to X (Twitter) users, limited
- SuperGrok (~$27 AUD/mo): Higher limits, image generation
- Key strength: Real-time X data access, conversational, personality
- Best for: X/Twitter power users, casual Q&A
Microsoft Copilot — Best for Office Users
- Free: Limited, integrated with Bing
- Pro (~$35 AUD/mo): Full features, Microsoft 365 integration
- Key strength: Works with Word, Excel, PowerPoint, Teams
- Best for: Businesses already using Microsoft 365
Australian Pricing
| Tool | Free | Paid (AUD/mo) | Best For |
|---|---|---|---|
| Perplexity | Yes | ~$31 | Research |
| Grok | Yes (X users) | ~$27 | Casual |
| Copilot | Yes | ~$35 | Office users |
Verdict
For research: Perplexity — the citation quality is unmatched.
For casual use: Grok — more personality, real-time X data.
For business: Copilot — if you’re already paying for Microsoft 365, the integration is seamless.
Free option: Perplexity’s free tier is the most useful of the three.