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Compare the details that matter to your task. Unknown information is shown openly; always verify current pricing and access with the provider.
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| What matters | 🤖 ChatGPT | 🔮 Perplexity |
|---|---|---|
| What it does | OpenAI's AI assistant for writing, coding, research, file analysis, and connected work across chats and projects. | AI search and research assistant that returns source-linked answers, with free and paid research options. |
| Best for | Writing, research, coding, and file-based tasks in one assistant | Source-linked web research and questions |
| Pricing model | Free plan + paid | Free plan + paid |
| Free-plan limits | Free is $0 with unlimited text chats on GPT-6 under abuse guardrails, plus limited uploads, image creation, voice, deep research and Codex access. Go is $8 a month and may include ads, Plus is $20, and Pro starts at $100 with three usage tiers. | Standard (free): 3 Pro Searches per day, 1 research query per month, practically unlimited basic searches, limited file uploads; no advanced AI models, file/app creation, image generation or Comet Assistant queries. API is pay-as-you-go with no complimentary credits. |
| Platforms | Web, macOS, Windows | Web |
| Key capabilities | Projects and chats Web search File and image inputs Voice conversations Connected tools and plugins | Source-linked answers Web search Research tools Model choice on eligible plans |
| Strengths | Keeps drafting and follow-up questions in one conversation. | Source-linked answers make the verification trail easier to inspect. |
| Limitations | The ChatGPT Free plan includes limited image creation. Uploads and other advanced features have plan-dependent allowances. API billing is separate; check current account availability and provider pricing. For tightly bounded evidence, give it source text instead of relying on recollection. | Standard is free with basic access and limited advanced usage. Paid plans increase research and model allowances; API usage is billed separately. Citations are starting points: a real URL can still support a different claim. |
| No signup required | Not verified | Not verified |
| No credit card required | Not verified | Not verified |
| Open source | Not verified | Not verified |
| Free trial | Not verified | Not verified |
| Access details reviewed | 2026-10-15 | 2026-10-06 |
| Official pricing / source | Check pricingAccess source | Check pricingAccess source |
| Next step | Explore ChatGPT | Explore Perplexity |