Pick DeepSeek when
You want a chat assistant this index marks as offered in mainland China, and the work is reasoning or coding help.
View the DeepSeek listingCompare
DeepSeek vs ChatGPT
DeepSeek and ChatGPT are both freemium chat assistants in this index. DeepSeek, from the Hangzhou lab, is listed for reasoning and coding help and is marked offered in mainland China. ChatGPT, from OpenAI, is listed for drafting, coding help, and working through questions, and is marked not offered for ordinary use in mainland China. Use the table for those recorded differences. This is not a model benchmark.
ChatFree tierEditor's pick
DeepSeek
Chat product from DeepSeek for reasoning and coding help, from the Hangzhou research lab.
Mainland China: offered
View listingChatFree tierEditor's pick
ChatGPT
OpenAI's conversational assistant for drafting, coding help, and working through questions. Free and paid plans are both listed on the public site.
Mainland China: not offered
View listing
Listing criteria
The cells repeat the public listing. They are not a timed test.
| Criterion | DeepSeek | ChatGPT |
|---|---|---|
| Listed for | Reasoning and coding help in chat | Drafting, coding help, and working through questions |
| Publisher | DeepSeek | OpenAI |
| Category | Chat | Chat |
| Public pricing | Free tier | Free tier |
| Mainland China | Mainland China: offered | Mainland China: not offered |
| Tags | Assistant, Reasoning, Coding | Assistant, Writing, Reasoning |
| Editor's shortlist | On the shortlist | On the shortlist |
When to pick one
Pick ChatGPT when
You want OpenAI's assistant for drafting and working through questions, and you are not counting on a mainland China offering.
View the ChatGPT listingQuestions
Which one is marked offered in mainland China?
DeepSeek is marked offered. ChatGPT is marked not offered for ordinary consumer use. NavBoth did not test a connection.
Do both have a free tier in this index?
Yes. Both are listed as freemium: a free way to start, and paid plans on the public site. This page does not quote a price.
What job does each listing name?
DeepSeek is listed for reasoning and coding help. ChatGPT is listed for drafting, coding help, and working through questions. Coding help is on both listings. Drafting is named on ChatGPT. Reasoning is named on DeepSeek.
Is this a model leaderboard?
No. There is no score for answers, context length, or speed. Those figures are not fields in the seed.
Who publishes each product?
DeepSeek is listed under DeepSeek. ChatGPT is listed under OpenAI.
Limits
This page is not an endorsement and not a connection test from inside mainland China. Access policies change. Names belong to their owners.
AI disclosure: this site is assisted and operated with AI. Listings are drafted with AI and checked against public pages. They are not endorsements or live access tests.