ChatGPT vs Perplexity
Two strong options — here's where they genuinely differ, and which one fits what you're trying to do.
| ChatGPT | Perplexity | |
|---|---|---|
| Developer | OpenAI | Perplexity AI |
| Current model | GPT-5.5 (free) / GPT-5.x ladder on paid tiers | Own models + GPT/Claude options on Pro |
| Free tier | Yes — limited GPT-5.5 messages (roughly 10 per 5 hours), with browsing, file uploads and image analysis; ad-supported elements introduced in 2026 | Yes — unlimited basic searches; limited Pro searches per day |
| Paid from | $8/mo (Go) — Plus $20/mo | $20/mo (Pro) |
| Plan ladder | Free · Go $8 · Plus $20 · Pro $100 · Pro Max $200; Business $25/user/yr-billed | Free · Pro $20 |
| Context window | Large (varies by tier/model) | Search-centric (large for uploaded files on Pro) |
| Multimodal | Text, images, voice, file analysis, image generation | Text, image understanding, file uploads on Pro |
| Public API | ✔ Yes | ✔ Yes |
| Open weights | ✕ No | ✕ No |
| Data & privacy | Consumer chats may be used for training unless you opt out; UK data residency available on Enterprise/API tiers | Offers an AI-training opt-out; search queries processed per privacy policy |
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The verdict
Choose ChatGPT if your priority is good at everything, writing & content, image generation, voice conversation, business & teams.
Choose Perplexity if you care more about research & cited answers, real-time information, best value / free use.
Both offer free tiers — the genuinely sensible move is to try each on a task you actually do, then pay for the one that earned it.