In 2025, two models dominate conversations in the world of AI: ChatGPT 5, developed by OpenAI, and Grok 4, designed by xAI, Elon Musk’s company. Both models are now available on our Yiaho platform via the official OpenAI and xAI APIs.
These two models, among the most advanced to date, push the boundaries of what AI can achieve, whether in terms of reasoning, content creation, or real-time analysis.
In this article written by the Yiaho team, we will compare these two AI titans, exploring their features, strengths, and weaknesses, knowing that they are both available on our Yiaho platform thanks to the OpenAI and xAI APIs. You can use them on Yiaho below right now:
Before testing them, do you want to know which AI is the best? Let’s break it down together!
ChatGPT 5: Raw power at the service of versatility
ChatGPT 5, announced by Sam Altman, CEO of OpenAI, is presented as a revolution in the field of conversational AI. According to Altman, this model is ten times more powerful than its predecessors, notably thanks to major advances in its computing and reasoning capabilities.
Although the exact technical details remain partially confidential, here is what we know:
- Advanced memory: ChatGPT 5 integrates improved contextual memory, allowing it to remember past interactions with unmatched precision. This feature is particularly useful for users needing an AI capable of following complex conversations over several sessions, such as in customer support or collaborative writing applications.
- Multimodal reasoning: Based on an optimized GPT architecture, ChatGPT 5 excels in processing text, images, and potentially other types of data, such as video. This makes it ideal for varied tasks, ranging from creative content generation to visual data analysis.
- Coding performance and problem solving: According to recent tests, ChatGPT 5 shows impressive scores on benchmarks like SWE-bench (around 85-90% for software coding tasks), surpassing many competing models in technical fields. Its ability to debug code or write complex scripts is particularly valued by developers.
- Accessibility: Available via the OpenAI API, ChatGPT 5 can be integrated into a multitude of applications, notably on our Yiaho platform, where it offers optimized performance for various use cases, ranging from business automation to content creation.
However, ChatGPT 5 is not without limits. Full access is reserved for paid subscribers (Plus plans at $20/month or Pro at $200/month), which can deter occasional users.
Furthermore, its dependence on a static database (up to December 2024 for certain features) makes it less responsive to real-time events compared to competitors like Grok 4.
Grok 4: Elon Musk’s bold AI, betting on real-time
Grok 4, launched by xAI in July 2025, is Elon Musk’s answer to the AI race.
Designed to challenge giants like OpenAI, this model stands out for its approach focused on transparency, speed, and real-time data integration. Here is an overview of its main features:
- Performance on Humanity’s Last Exam: Grok 4 made an impression with a score of 25.4% on the Humanity’s Last Exam test, a benchmark designed to evaluate reasoning close to artificial general intelligence (AGI). With its advanced version, Grok 4 Heavy, this score climbs to 44.4%, far surpassing OpenAI’s 25% in Deep Research mode. This shows an exceptional ability to solve complex problems.
- Multi-agent reasoning: Grok 4 uses a multi-agent reasoning system, where several instances of the AI collaborate to analyze a problem from different angles before synthesizing a response. This approach, particularly effective for scientific and technical tasks, gives it an advantage in fields like mathematics (score of 96% on AIME) and physics.
- Real-time integration with X: Thanks to its deep integration with the X platform, Grok 4 can access real-time data, such as news or social trends, making it ideal for users needing up-to-date information, like content creators or market analysts.
- Personality and accessibility: Grok 4 stands out for its often witty and bold tone, which contrasts with ChatGPT’s more formal approach. Available via the xAI API on Yiaho, it is accessible to X Premium+ ($40/month) or SuperGrok ($30/month) subscribers, with a free version offering limited features.
Despite its strengths, Grok 4 has some weaknesses. Its strong focus on X data can introduce bias, as the platform is not always a faithful reflection of reality. Additionally, its multimodal capabilities (like image processing) are still in development, unlike ChatGPT 5, which already excels in this area.
ChatGPT 5 vs Grok 4: Comparison
So which AI to choose between ChatGPT 5 and Grok 4? Here is a comparative table of the two models:
Why choose one or the other on Yiaho?
On Yiaho, both models are accessible via the OpenAI and xAI APIs, allowing users to leverage their respective strengths in a unified environment. Here are some recommendations for choosing:
Opt for ChatGPT 5 if:
- You are a content creator looking to produce engaging texts, articles, or scripts.
- You need a versatile AI capable of handling multimodal tasks, such as image analysis or generating detailed reports.
- You prioritize an intuitive interface and a well-established user experience.
Opt for Grok 4 if:
- You work in technical fields like mathematics, physics, or coding, where precise reasoning is crucial.
- You need real-time information, for example, to follow trends or analyze recent events.
- You appreciate an AI with a bold personality and less filtered responses.
Read also: Free Grok 4 on Yiaho: Cutting-edge AI accessible to everyone!
Verdict: Which is the best AI?
Determining the “best” AI depends on your specific needs.
- ChatGPT 5 is an essential choice for those looking for a versatile AI, ideal for content creation, coding, and professional applications. Its advanced memory and multimodal capabilities make it a robust tool for a wide range of tasks.
- Grok 4 shines with its ability to provide real-time answers and its excellence in technical fields, notably thanks to its multi-agent reasoning and its impressive score on benchmarks like Humanity’s Last Exam.
On Yiaho, you don’t have to choose immediately: thanks to the integration of the OpenAI and xAI APIs, you can test both models and see which one best meets your expectations!
Whether you are a developer, a marketer, or a researcher, our platform allows you to harness these two cutting-edge AIs to maximize your results. So, why not try them now and discover for yourself which AI is best for you?
