Head-to-head · xAI vs Perplexity
Grok 4.7 vs Perplexity
Quick answer: Grok 4.7 stands out for large context window at a moderate price. Perplexity stands out for citations make verification fast, and it has a free tier. Reviewed September 2026.
Overview
Grok 4.7: Grok 4.7 is xAI's latest flagship model for coding, agentic tasks and knowledge work. It has a 500,000-token context window, accepts text and image input, and supports adjustable reasoning levels.
Perplexity: Search-first AI: every answer comes with citations. Pro tier gives access to GPT-4 / Claude / Sonar models and Pro Search (multi-step research).
At a glance
| Dimension | Grok 4.7 | Perplexity |
|---|---|---|
| Vendor | xAI | Perplexity |
| Starting price | API: $2 to $4 in / $6 to $12 out per M tokens | $20/mo |
| Pricing model | Paid | Freemium |
| Free tier | No | Yes |
| Category | Generative AI | Generative AI |
Strengths and limits
Grok 4.7
- Large context window at a moderate price
- Strong on coding and agent tasks
- Real-time knowledge through the xAI ecosystem
Watch out for
- Smaller enterprise ecosystem than OpenAI, Anthropic or Google
- Price steps up for prompts over 200,000 tokens
- Fewer professional integrations
Perplexity
- Citations make verification fast
- Pro Search beats single-shot answers for research
- Strong fit for journalists, analysts, lawyers, doctors
Watch out for
- Hallucinations still occur despite citations
- Source quality varies, verify before quoting
- Pro tier price increased through 2025
Key features
Grok 4.7
- 500,000-token context window
- Text and image input
- Flexible reasoning levels
- Available through the xAI API
Perplexity
- Cited answers with source links
- Pro Search for multi-step research
- Choice of GPT-4, Claude, Sonar models on Pro
- Spaces (saved research threads with shared context)
- Mobile app with voice
Pricing compared
Grok 4.7 is priced by usage rather than by seat: API: $2 to $4 in / $6 to $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing.
Perplexity has a free tier and paid plans starting at $20/mo. The free tier is enough to test it on real work before you pay.
Frequently asked questions
Which is better, Grok 4.7 or Perplexity?
It depends on the work. Grok 4.7 stands out for large context window at a moderate price. Perplexity stands out for citations make verification fast, and it has a free tier.
How do Grok 4.7 and Perplexity compare on price?
Grok 4.7 is priced by usage rather than by seat: API: $2 to $4 in / $6 to $12 out per M tokens. That means cost scales with how much text you send and receive, so estimate your monthly volume before committing. Perplexity has a free tier and paid plans starting at $20/mo. The free tier is enough to test it on real work before you pay.
Is there a free option between Grok 4.7 and Perplexity?
Perplexity offers a free tier or free access, so you can test on real work before paying.