ChatGPT vs Perplexity Comet
Which one should you pick? Here's the full breakdown.
ChatGPT
The chatbot that started the AI revolution -- most popular AI assistant in the world
Perplexity Comet
Perplexity's agentic AI browser -- FREE on all platforms as of 2026-03-18 (previously $200/mo Max-only). iOS, Android, Windows, Mac. Browses the web, executes multi-step tasks, and summarizes pages in-line. Comet Plus ($5/mo) adds premium publisher content
| Category | ChatGPT | Perplexity Comet |
|---|---|---|
| Ease of Use | 10.0 | 8.0 |
| Output Quality | 8.0 | 8.0 |
| Value | 8.0 | 9.5 |
| Features | 9.0 | 8.0 |
| Overall | 8.8 | 8.4 |
Pricing Comparison
| Feature | ChatGPT | Perplexity Comet |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Benchmark Head-to-Head
GPT-5.4 benchmarks — Perplexity Comet has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 91% |
| GPQA Diamond | Graduate-level science questions | 92.8% |
| AIME 2024 | Competition math problems | 83.3% |
| HumanEval | Python code generation | 95% |
| SWE-bench | Real GitHub issue fixing | 72% |
| ARC-AGI | Abstract reasoning puzzles | 73.3% |
Which Should You Pick?
Pick ChatGPT if...
- ✓Easier to use (10 vs 8)
- ✓More features (9 vs 8)
Everyone. Seriously -- if you're new to AI or want the most complete all-in-one package, ChatGPT is the default recommendation.
Visit ChatGPTPick Perplexity Comet if...
- ✓Better value for money (9.5/10)
Users who already use Perplexity for search and want an agent browser that can complete multi-step tasks (booking, research, shopping, document summarization) across tabs. Also a strong introduction to the AI-browser category for anyone curious but unwilling to pay $200/mo for a preview -- the 2026-03-18 free rollout makes evaluation risk-free.
Visit Perplexity CometOur Verdict
ChatGPT edges out Perplexity Comet with a 8.8 vs 8.4 overall score. Both are solid picks, but ChatGPT has the advantage in features.