If we were still talking about AI as an interesting novelty a year ago, today in 2026 we are figuring out which model saves us the most time at work. According to the latest reports from Sensor Tower, a historic milestone has been reached: ChatGPT's market share has fallen below the 50% mark for the first time. OpenAI currently holds roughly 46.4% of the market, while Google's Gemini and Anthropic's Claude are rapidly rising to take its place.
Claude: The New King of Productivity?
While ChatGPT remains the most popular tool for the general public, Claude has become the undisputed leader in professional domains. Data from the Korean market, which is highly representative of global AI trends, shows a fascinating trend. Claude has surpassed Gemini in the generative AI apps category in Korea and claimed second place in revenue after ChatGPT according to a report by Asia Business Daily.
A key factor is how people use Claude. While the mobile app dominates for ChatGPT, as many as 58.8% of users access Claude through the web interface. This is a fundamental difference compared to ChatGPT (22%) or Gemini (34.9%). What does this mean in practice? Claude users are not "chatting for fun" on their phones during a subway ride; they are people sitting at their computers, using AI as an integral part of their work workflow — for writing code, analyzing long documents, or creating complex texts.
Technological Superiority: Opus 4.8 and Mitos
This growth is no accident. This year, Anthropic introduced a series of models that outperform even the latest GPT versions in many benchmarks. Among the most significant are Opus 4.8, the Mitos Preview model, and Fable 5. These models excel primarily in their ability to work with an enormous context window. In layman's terms: Claude can "read" and keep in its memory entire books or thousands of lines of code at once without forgetting the beginning of the document. This is critical for lawyers, developers, and analysts.
Comparison of Major Market Players in 2026
For a Czech user or company, it is important to know which tool to choose based on the type of task. Here is a current overview:
- ChatGPT (OpenAI): The best "jack of all trades". It has the largest ecosystem, the best mobile app, and integrations into many other services. Ideal for quick queries, creative brainstorming, and regular users.
Price: Free tier, ChatGPT Plus (approx. $20 / ~470 CZK per month). - Claude (Anthropic): Top-tier in logical reasoning, programming, and working with long texts. Its writing style is often considered more human and less "robotic".
Price: Free tier, Claude Pro (approx. $20 / ~470 CZK per month). - Gemini (Google): The best choice for those who live in the Google Workspace ecosystem. Excellent integration into Docs, Gmail, and Cloud services.
Price: Free tier, Gemini Advanced (part of Google One AI Premium, approx. $20 / ~470 CZK per month).
Impact on the Czech Market and European Regulation
This shift is highly relevant for Czech companies. With the arrival of the EU AI Act, increasing emphasis is being placed on the safety and transparency of models. Anthropic, as the creator of Claude, builds its entire philosophy on so-called Constitutional AI, a method that gives the model clear ethical rules for its own behavior. This makes Claude a very attractive choice for European companies that must comply with strict regulations on data protection and ethics.
Availability in the Czech Republic: All three major platforms are fully available for Czech users. As for the Czech language, all models demonstrate a high level of comprehension and the ability to generate quality texts. Claude, however, has recently been rated as somewhat better at preserving nuance and a natural tone in Czech when dealing with long texts.
Practical Impact: What to Choose?
If you are a personal user who wants AI at hand on your phone for everyday tasks, stick with ChatGPT. If you are a developer or analyst who needs to process large volumes of data or write complex code, Claude will likely offer you higher efficiency and fewer errors. If your company runs on Google Workspace, Gemini will save you the most time transitioning between apps thanks to its integration.
Is Claude safer to use within a company than ChatGPT?
Anthropic (the maker of Claude) places extreme emphasis on safety frameworks and ethics (Constitutional AI). Enterprise plans that meet strict data protection standards are available for corporate environments, which is a major advantage in the context of the European EU AI Act regulation.
How much does the ability to write in Czech differ between these models?
In 2026, all three models are at a very high level. ChatGPT is excellent at creative writing and short forms. Claude tends to be somewhat more natural in Czech when creating long, technical texts and is less prone to avoiding complex structures, making it a great choice for copywriting and content creation.
Can Claude help me with programming in Czech?
Yes, Claude is currently one of the best models for code generation. Although the code itself is in English, you can give it instructions in Czech and it will be able to explain the program's logic or document code in Czech as well.