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ChatGPT vs Claude vs Perplexity sets two general assistants against a research engine. All three standard plans cost $20 a month. However, Perplexity cites a source on every answer by default. ChatGPT and Claude, by contrast, do much more besides search.
Our reviews score ChatGPT 3.6, Claude 3.6 and Perplexity 3.4. In addition, this page links to our head-to-head comparison of each pair.
ChatGPT vs Claude vs Perplexity: The Short Answer
Choose Perplexity, first, for quick research with sources. In the EBU and BBC study of October 2025, 30% of its news answers had significant issues, the lowest of the assistants tested, against 36% for ChatGPT. It also shows no ads at all.
Choose Claude, by contrast, for writing, coding and the strongest model on a $20 plan, Opus 5.5. ChatGPT, finally, suits one subscription for many jobs, from deep research reports to images, Codex and Office add-ins.
Head to Head
| Criterion | ChatGPT | Claude | Perplexity |
|---|---|---|---|
| Standard plan | Plus $20/mo | Pro $20/mo or $200/yr | Pro $20/mo or $200/yr |
| Cheapest paid plan | Go $8/mo (US) | Pro, about $17/mo yearly | Education Pro $10/mo, students |
| Ads | Free and Go, in test regions | None on any plan | None since February 2026 |
| Model on the $20 plan | GPT-5.6 Sol, up to High | Opus 5.5 | Kimi K3, GPT-5.6 Terra, Sonnet 5 |
| News answers with issues | 36% | Not tested | 30% |
| Arena Search board | Sol: 1st | Claude: 2nd | Sonar API: 29th, retired |
| Coding agent | Codex | Claude Code | None; Computer agent on credits |
| Our score | 3.6 | 3.6 | 3.4 |
Prices and Plans
At the standard tier, first, all three cost $20 a month. Claude Pro and Perplexity Pro also come at $200 a year, while ChatGPT Plus is sold monthly only. Below that, however, ChatGPT Go costs $8 in the US and may show ads.
Students, meanwhile, can also get Perplexity’s Education Pro at $10 a month, as our guide to Perplexity for students covers. Our breakdown of what AI tools cost per year also adds each option up over twelve months.
Research and Sources
Perplexity has the strongest tested sourcing record of the three. Besides the EBU and BBC result, the Tow Center found in March 2025 that it had the lowest error rate of eight AI search tools. Claude, however, was not tested in either study.
Arena’s Search board, however, points another way. There, for example, ChatGPT’s GPT-5.6 Sol placed first and Claude second, while Perplexity’s entries were Sonar API models that it retired on September 27, 2026. Our list of the best AI for research explains both measures.
Models on the $20 Plan
First, Claude Pro includes Opus 5.5, Anthropic’s top model, which placed fourth on Arena’s text board of September 30. ChatGPT Plus chat, by contrast, runs GPT-5.6 Sol, which placed 20th.
Perplexity Pro, meanwhile, offers a menu instead: Kimi K3, GPT-5.6 Terra and Claude Sonnet 5, among others. Its flagship options from OpenAI and Anthropic, though, sit on Max at $200 a month.
Writing and Coding
For writing, therefore, Claude leads: its Opus 5.5 placed first on Arena’s creative-writing board of September 25, though on only 487 votes. ChatGPT’s model, by contrast, sat 14th. Perplexity, meanwhile, writes best from sources, as our list of the best AI for writing covers.
For coding, similarly, Claude Code scored 68 on Artificial Analysis’s Coding Agent Index and Codex 63, at a lower cost per task. Perplexity, however, has no coding agent, so our list of the best AI for coding leaves it out.
Data, Ads and Privacy
All three train on personal chats by default, but each lets you opt out. At Perplexity, for example, the opt-out covers only data from then on. Claude, for its part, keeps chats for five years while training is on, as our list of the best AI tools for writers explains.
On ads, similarly, Claude and Perplexity show none, while ChatGPT shows ads on Free and Go in test regions. Business plans from all three, moreover, skip training by default.
Winners by Category
Overall, Perplexity wins on cited answers by default and the tested sourcing record. It also ties Claude on ads and yearly billing, and, in addition, it is cheapest for students.
Claude, on the other hand, wins on writing, coding and the model on its $20 plan. ChatGPT, for its part, wins on breadth, the Search board and the cheapest paid tier for non-students. Overall, in ChatGPT vs Claude vs Perplexity our scores put ChatGPT and Claude level at 3.6, with Perplexity at 3.4.
Which One to Choose
In short, take Perplexity if most of your work is quick research that needs a source for every claim. Claude, by contrast, suits writers and developers who want the strongest model on a $20 plan without ads.
ChatGPT, finally, suits one subscription for many kinds of work, too. For deeper pairs, see our comparisons of ChatGPT vs Perplexity and Claude vs Perplexity.
For the remaining pair, see ChatGPT vs Claude. If you are weighing Google instead, our ChatGPT vs Claude vs Gemini comparison covers that trio.
How We Research
This ChatGPT vs Claude vs Perplexity comparison reuses the sources behind our reviews of each assistant, read between September 30 and October 2, 2026. Ranks come from Arena’s Search board and Artificial Analysis, and sourcing records from the EBU and BBC study and the Tow Center.
We run no tests of our own. Our about page explains the criteria, and our guide to fact-checking AI output covers how to check any of the three.
ChatGPT vs Claude vs Perplexity FAQ
Our reviews score ChatGPT and Claude 3.6 and Perplexity 3.4. Perplexity leads on cited research, Claude on writing and coding, and ChatGPT on breadth.
Perplexity. It cites every answer and had the fewest significant issues among assistants tested by the EBU and BBC, at 30% against 36% for ChatGPT. Claude was not tested.
ChatGPT Go costs $8 a month in the US and may show ads. Students can get Perplexity’s Education Pro for $10, and Claude Pro costs about $17 a month on yearly billing.
Partly. Perplexity Pro includes Claude Sonnet 5, and Max adds Claude Opus 5. Claude’s newest top model, Opus 5.5, however, comes with Claude Pro.
ChatGPT shows ads on Free and Go in test regions. Claude shows none on any plan, and Perplexity has shown none since February 2026.
The Verdict
ChatGPT vs Claude vs Perplexity depends on how much of your work is research. If most of it is, Perplexity gives you sources by default and the best tested record.
If you write or code, however, Claude gives you the strongest model for $20. Finally, if you want one tool for everything, ChatGPT covers the most ground.