All tasks / Comparisons
Grok vs Perplexity
Compared only on public benchmark results, across the 3 tasks where both are listed: Perplexity is a tier higher in 2 of 3 shared tasks, they share a tier in 1.
Grok
Chat assistant from SpaceXSI (xAI) on grok.com, iOS, Android and inside X, running the Grok model family.
- Vendor
- SpaceXSI (formerly xAI)
- Kind
- Apps
- Runs
- Cloud
- Price
- Free tier · from $8/mo
- Skill level
- Beginner: works out of the box
- Open source
- No
- Last verified
- 18 Oct 2026
Perplexity
Search-based answer engine on web, desktop and mobile that cites sources; paid plans can pick third-party models.
- Vendor
- Perplexity AI
- Kind
- Apps
- Runs
- Cloud
- Price
- Free tier · from $20/mo
- Skill level
- Beginner: works out of the box
- Open source
- No
- Last verified
- 18 Oct 2026
Task by task
| Task | Grok | Perplexity | Higher tier |
|---|---|---|---|
| Chat & assistants Apps | Avia Grok 4.7 · Cloud | Svia Gemini 4 Argon · Cloud | Perplexity |
| Search & research Apps | B41 on DeepResearch Bench (RACE, GPT-5.5 judge) · Cloud | B43 on DeepResearch Bench (RACE, GPT-5.5 judge) · Cloud | Same tier |
| Image understanding Apps | Avia Grok 4.7 · Cloud | Svia GPT-6.1 Sol · Cloud | Perplexity |
A tier spans a range of scores, and small gaps on a leaderboard are often within its margin of error, so only a different tier counts as ahead. How we rank.
Same benchmark, both results
| Benchmark | Grok | Perplexity | Snapshot |
|---|---|---|---|
| DeepResearch Bench (RACE, GPT-5.5 judge) RACE overall score (0-100; report quality judged by GPT-5.5 relative to reference reports on 100 research tasks), higher is better | 41 | 43 | 11 Oct 2026 |
| Mind2Web 2 (agentic search, private test set) Success rate: share of 130 long-horizon, time-varying agentic search tasks whose answer gets a perfect root score from the Agent-as-a-Judge rubric tree (leaderboard's default sort), higher is better | 27% | 15% | 19 Oct 2026 |