Comparison between DeepSeek and ChatGPT
Artificial intelligence is bringing a revolution to the world. Although there can be unlimited applications of artificial intelligence, chatbot is still one of the most used AI applications. Launch of ChatGPT was revolutionary in the field of AI. It became popular because it started answering most of the user’s queries accurately. ChatGPT had no competitors until the launch of DeepSeek. DeepSeek provided a much cheaper alternative to ChatGPT which started a debate “Is DeepSeek better than ChatGPT?”. We provided comparison of both based on following metrices.
Price Comparison
Both ChatGPT and DeepSeek offer paid API versions along side their free chat versions. Paid versions and Paid APIs contains extra features. Price for both APIs is based on number of input and output tokens. Token is a minimum text which AI model recognize. It can be a word, number or even a punctuation mark. Cost comparison for ChatGPT and DeepSeek is given below.
| MODEL | CONTEXT LENGTH | 1M INPUT TOKENS (CACHE HIT) | 1M INPUT TOKENS (CACHE MISS) | 1M TOKENS OUTPUT PRICE |
| deepseek-chat | 64K | $0.07 | $0.27 | $1.10 |
| deepseek-reasoner | 64K | $0.14 | $0.55 | $2.19 |
| OpenAI o1 | 200K | $7.5 | $15 | $60 |
| OpenAI o3-mini | 200K | $0.55 | $1.10 | $4.40 |
Responsiveness
AI chatbot should be able to respond to each query. ChatGPT responds to each query every time whereas DeepSeek is unable to do so. It has been observed that DeepSeek is unable to process some requests due to lack of allocated resources. It seems that overwhelming response and rapid increase in DeepSeek user base was not anticipated due to which enough resources were not allocated to handle the amount of queries it is receiving everyday.
Updated Model
There can be many prompts which require up to date knowledge. Any Chatbot which has knowledge is likely to respond better for most of the queries. We used following prompt to verify which chatbot is up to date.
Who is president of USA?
ChatGPT is able to provide correct information whereas DeepSeek was unable to provide the name of the current USA president.
Content Writing
AI chatbots are used frequently for content writing purposes. These chatbots can write articles, emails, cover letters, social media posts etc. Both quality and quantity matters when it comes to content writing. We used following prompt to check content writing abilities of ChatGPT and DeepSeek.
Write an article on COVID 19.
Both ChatGPT and DeepSeek wrote good quality articles on COVID 19. Organization of content was good however key statistics were missing from both articles related to DeepSeek provide very good alternative to ChatGPT with low price for paid API. However to remain competitive and complete at highest level. It should respond to each and every query with in reasonable time. It should also be kept up to date to respond correctly to queries which require latest information. Overall DeepSeek is a very good addition to AI industry.
patients, causalities and economic impacts. Content of article depends upon descriptions of prompt.
Idea Generation
AI chatbots can be used for brainstorming and generating new ideas. We tested both ChatGPT and DeepSeek for their abilities to generate new ideas using following prompt.
Generate ideas of animated movies for kids.
ChatGPT generated 8 ideas while it’s competitor DeepSeek generated 15 ideas. Both can generate more ideas by giving more prompts but they start repeating similar ideas. There are patterns which can be identified while evaluating different ideas generated by both chatbots and lacks creativity.
Coding
Writing efficient and correct code is another feature to judge AI power chatbot. We have provided following coding statement to both ChatGPT and DeepSeek.
Write function to find prime number in C++.
ChatGPT successfully generated code which can identify if given number is Prime or not in just sqrt(n) steps using C++.
When same prompt was given to DeepSeek, it went one step ahead and provided solution to identify Prime number accurately in just sqrt(n)/2 steps. Solution provided by DeepSeek was not only 2 times faster than ChatGPT but DeepSeek also provided test cases along with source code.
Conclusion
DeepSeek provides very good alternative to ChatGPT with a low price for paid API. However, to remain competitive and complete at highest level, It should respond to each and every query with in reasonable time. It should also be kept up to date to respond correctly to queries which require the latest information. Overall DeepSeek is a very good addition to AI industry.