Chatgpt vs deepseek: Best Free Model for Coding

by Evan Brooks5 min read

Every day, developers use AI. It assists programmers in coding, debugging issues to resolve a problem, understanding how complex logic works easily and algorithm for faster decision making. Many developer users ChatGPT for their work. They know it can reason and articulate itself and the whole world uses it.

In the last few months however, a new player called DeepSeek has started and it seems very popular amongst developers. A very important thing that a lot of programmers are starting to think about.

Is It Possible That A Free Coding Tool Can Perform As An Expensive AI Model?

This is actually a great moment to juxtapose ChatGPT with DeepSeek. DeepSeek Is Not A Robot, it goes beyond them It results in cleaner code, costs less to use APIs and gives you more options of building things. Thereby students, independent developers and new projects that are looking to save money while not sacrificing on performance will find these features very attractive.

This article is testing ChatGPT against DeepSeek in real coding tasks. The two models are asked to debug, algorithm questions and explanation alike. This additionally includes how speedily they respond, whether or not them come into contact with abnormal situations and their understanding of language. Why DeepSeek is one of the Cheapest Free Coding Models We are aware we talk a lot about free coding models and bootcamp options if that fits your learning pattern.

What do programmers love about DeepSeek?

DeepSeek was instantly well-received by a lot of people, especially software engineers. It is popular and for a reason, because it simply works really well and does not cost much to use. Developers also claim that DeepSeek performs almost as well ChatGPT for coding tasks and is a cheaper alternative with better usability.

Let's talk about the main reasons why this is happening.

Prices for APIs: Almost 10 Times Less

One of the best things about DeepSeek for developers is the price.

ChatGPT is very powerful, especially the GPT-4 level models, but they are very expensive. Costs can go up quickly if you use the API a lot. This really limits:

  • People who are developers and work for themselves
  • New Businesses and Students
  • Open-source projects

DeepSeek's API prices are often almost ten times lower than those of other APIs. This lets developers:

  • Do more tests.
  • Write more code

When you try them, don't worry about how much they will cost.

This price difference can be very helpful for developers who are making systems, AI agents, or coding tools that can work on their own.

There are open models and deployment close to you.

Another big plus is that DeepSeek is more open.

DeepSeek is different from ChatGPT because it lets developers see models, use them on their own computers, and change them to fit their needs. This is very important for developers who want to keep their data and privacy safe.

When you deploy locally, you don't have to send sensitive code to servers that aren't on your network. That's why businesses and developers are working on private projects like DeepSeek.

The first real test was about problems with the Snake Game's algorithm.

We gave ChatGPT and DeepSeek the same kind of algorithm problem that is often found on LeetCode so that we could compare them fairly.

This is what the test is for.

The goal was to make the logic system for an old snake game work. This included:

  • Taking the snake out
  • Keeping a record of what you eat
  • Finding wall crashes
  • Finding crashes with yourself
  • Getting the game back to how it should be

They were both told to write code in Python that would fix the same problem.

Testing to see how well the code works

After testing the code that was written:

ChatGPT's logic was correct, well-organized, and passed most tests on the first try.

DeepSeek also made logic that was correct, but the structure wasn't as good. With just a few small changes, it worked for most of the test cases.

Many runs had very similar success rates. ChatGPT's code was a little easier to read, but DeepSeek did a surprisingly good job for the price.

Taking care of the edge cases

We also tested some common edge cases, like

  • Right away, the snake hit the wall.
  • The snake is still eating in the same place.
  • Quickly changing directions

In general, ChatGPT was more careful with edge cases. Most of the time, DeepSeek did a good job with edge cases, but there were times when it needed clearer instructions. When the prompts were well-written, DeepSeek's algorithmic reasoning was usually right.

Practical Test 2: Fixing Errors and Explaining

After that, we saw how well we could fix things.

What the Test is for

Both models received a disorganized Python script that contained:

  • Names that aren't good for variables
  • Mistakes in reasoning
  • Not paying attention to special cases

The job was to figure out what was wrong with the code and fix it.

Results

ChatGPT gave clear, easy-to-follow explanations that were perfect for people who were new to the topic.

DeepSeek found bugs, fixed them right away, and gave shorter answers.

Developers who needed quick fixes found DeepSeek to be faster and easier. ChatGPT was still better for students who want to learn a lot.

How quickly they answer and how well they understand language

You also need to be able to respond quickly and understand language if you code every day.

How fast you answer

In tests that were done again and again:

DeepSeek's answers came a little faster.

ChatGPT always gave the same answers, but it could be slow when a lot of people were using it.

A faster response time can help you get more done if you need help coding in real time.

Advantage in Chinese Language Situations

DeepSeek was much better at understanding Chinese. It worked better when:

  • In Chinese, explaining code
  • Dealing with prompts that are in English and Chinese
  • Being able to understand the technical language that many Chinese developers use

This is why DeepSeek is so popular with developers who know how to speak two languages.

To sum up

But have a look into them closely, without any bias and it will strike to you that they are certainly different (ChatGPT vs DeepSeek). The program may assist the programmer in writing and refactoring source code, but it cannot directly write or incrementally perform a transform for their output.

Best For: DeepSeek is best for if you are a Sole Developer The guy can play around without worrying about space because the API is damn cheap. In more general terms, by being less insular you have greater control over your own privacy or a way to deploy locally. DeepSeek — Awesome at fixing bugs, algorithmic problems and ensuring code works as intended in actual coding tests.

Even highly sophisticated iterations of ChatGPT (think GPT-4+ models and beyond) retain their ability to elaborate explanations, structure reasoning clearly so that beginners can grasp new concepts. A fine option for teams and users that value the quality of an explanation over its price tag

In short:

  • DeepSeek will be a better option for freelancers, students and individual developers.
  • While it may be ideal for groups and companies to use ChatGPT, simply because of the extent in which they translate things so distinctly as well as other tools.

The use of DeepSeek by others to develop AR software shows that a lot can be achieved with AI programming without paying vast sums for help. Developers can now choose a level of tooling that best suits their budget and way of working.