Side-by-side comparison · Research & Search
ChatGPT Deep Research vs Consensus vs Perplexity (Research)
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
ChatGPT Deep Research
3.8Pick it if: ChatGPT users who want a proper write-up on a question and are happy to wait a few minutes for it.
Consensus
4.1Pick it if: Anyone who wants to know whether something is backed by actual studies before repeating it.
Perplexity (Research)
4.6Pick it if: Anyone who would otherwise spend an afternoon reading tabs to answer one question.
Overview
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
|---|---|---|---|
| In one line | ChatGPT's research mode, which browses for you and writes up a cited report. | Searches academic papers and tells you what the evidence actually says. | Runs dozens of searches on a question and hands back a cited report in minutes. |
| Pricing model | Freemium | Freemium | Freemium |
| Starting price | $8/mo | $20/mo | $17/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | No | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
|---|---|---|---|
| Overall rating | 3.8 | 4.1 | 4.6Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 4.0 | 4.5 | 4.5 |
| FeaturesHow much it can do, and how well the pieces fit together. | 4.0 | 3.5 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.5 | 4.0 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.5 | 4.0 | 4.5 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.0 | 4.5 | 5.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | – | Yes |
| Desktop app | Yes | No | Yes |
| Browser extension | Yes | – | Yes |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | Yes | – | Yes |
| Understands images | Yes | No | Yes |
| Makes images | Yes | No | Yes |
| Makes video | Yes | No | Yes |
| Writes code | Yes | No | Yes |
| Runs agents or automations | Yes | No | Yes |
| Learns your brand or style | Yes | No | No |
| Works in many languages | Yes | – | Yes |
| Capabilities score | 16/ 17 | 5/ 17 | 15/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
|---|---|---|---|
| Plans | Free Free Seeing what a report looks like. | Free Free Occasional fact-checking. | Free Free Quick sourced answers and a taste of research mode. |
Go $8/mo Casual users who want more chat, not more research. | ProOur pick $20/mo, or $12/mo billed yearly Anyone who checks evidence weekly. | ProOur pick $17/mo billed yearly Anyone who researches most days. | |
PlusOur pick $20/mo Anyone who wants deep research weekly. | Deep $65/mo, or $45/mo billed yearly Researchers and clinicians doing frequent literature reviews. | Max $200/mo, or $167/mo billed yearly Heavy users who also want the Computer agent and the newest models first. | |
Pro From $100/mo Heavy users who run research daily. | Teams Custom Labs, departments and research groups. | Enterprise Pro From $40/seat/mo Teams that need admin controls and shared billing. | |
| Which plan to pick | If you have Plus already, you are set; its deep research allowance covers most people. Do not buy ChatGPT just for research unless you also want the rest of it, because Perplexity Pro costs less and is faster. Pro is only worth it if you run reports every day. | Start on Free. If you find yourself rationing the 10 Pro messages, Pro billed yearly is good value at $12 a month. Deep is only for people whose job is literature reviews; most readers here will never need it. | Pro is the one. The free plan is too tight to judge research mode properly, and Max only makes sense if you want the Computer agent or you hit Pro limits every day. Businesses with a few people on it should look at Enterprise Pro for the admin controls. |
Key features
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
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Pros and cons
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
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Who each one is for
| Attribute | ChatGPT Deep Research | Consensus | Perplexity (Research) |
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How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability. The "Visit" buttons may use affiliate links, which never affect a score.
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