The world of artificial intelligence is undergoing a fundamental shift in market dynamics. If 2023 and 2024 were the period of building awareness around LLMs (Large Language Models), 2026 is becoming the year of specialization and diversification. According to data from TechCrunch, ChatGPT's share fell to 46.4% at the end of May 2026. That is a dramatic drop compared to the start of the year, when OpenAI held over 50%.
Who Are the New Leaders? Market Share Analysis
Although ChatGPT remains the most sought-after assistant with an impressive 1.1 billion monthly active users (MAU), its dominance is now significantly weakened. The main winners of the current period are Google and Anthropic.
- Google Gemini: Reached a market share of 27.7% with 662 million users. A key factor is its deep integration into the Google Workspace ecosystem (Docs, Gmail, Sheets).
- Anthropic Claude: With a market share of 10.3% and 245 million users, it is profiling itself as the preferred choice for professionals seeking nuance in text and a higher degree of safety.
- Others: Players like Grok (xAI), Perplexity, or Meta AI currently hold a share below 5%, but their growth curve is steady.
This shift means that users are no longer looking for "one tool for everything" but are beginning to assemble their own technology stacks according to specific needs.
Why Are People Leaving ChatGPT? The Trust and Functionality Factor
The Sensor Tower report makes an interesting observation: users are becoming increasingly active in switching between assistants. One of the key factors is brand trust. The report suggests that after the contract between OpenAI and the U.S. Department of Defense was signed in February 2026, there was a significant increase in ChatGPT account deletions.
For users who emphasize privacy and ethics, Anthropic Claude appears to be a safer alternative thanks to its "Constitutional AI" philosophy. On the other hand, Google Gemini wins on practicality — if you already use Google Drive, Gemini integration is a natural step that requires no new accounts or additional subscriptions.
Model Comparison: Which One to Choose?
For a Czech user or a company in the EU, it is important to know what each model offers in practice:
| Model | Main Strength | Availability in the Czech Republic | Approx. Price |
|---|---|---|---|
| ChatGPT (OpenAI) | Versatility, app ecosystem | Yes (including Czech) | ~500 CZK/month (Plus) |
| Gemini (Google) | Google Workspace integration | Yes (including Czech) | ~500 CZK/month (Advanced) |
| Claude (Anthropic) | Creative writing, logic, safety | Yes (including Czech) | ~500 CZK/month (Pro) |
Impact on the Czech Market and European Regulation
From the perspective of a Czech entrepreneur or freelancer, this market fragmentation is great news. You no longer have to be dependent on a single provider (vendor lock-in). If your company works in Google Workspace, Gemini can save you time with automation in spreadsheets and documents. If you specialize in copywriting or legal texts, Claude often offers a more natural style of expression in Czech than ChatGPT.
We must not forget the EU AI Act. European regulation places great emphasis on the transparency and safety of models. In this context, Anthropic (Claude's developer) could gain an edge in Europe if it can demonstrate a higher degree of control over its model's risks, which is crucial for Czech companies operating under strict GDPR rules.
Summary: What Does This Mean for You?
If you have only used ChatGPT so far, it is time to start experimenting. We recommend trying the free versions of all three services and testing them on your specific tasks — for example, summarizing a long Czech document or generating code. The market has become competitive, which means that features that were a luxury a year ago are now a standard for free.
Is Claude available in Czech as well as ChatGPT?
Yes, Anthropic Claude demonstrates a very high level of Czech language comprehension and is capable of generating texts that feel less "robotic" than some other models. It is fully available for users in the Czech Republic.
Could the change in market share affect subscription prices?
A direct impact on price is unlikely, but increased competition may lead companies like OpenAI or Google to offer better service bundles (e.g., more features within the basic subscription) to retain their users.
What is the best way to choose an AI for your company in the Czech Republic?
The most important thing is analyzing your existing software ecosystem. If you use Google Workspace, Gemini is the logical choice. If you need maximum data security and precise writing, go for Claude. ChatGPT remains an excellent choice for a broad range of general tasks.
