Apple has officially announced that OpenAI’s latest language model GPT-5 will be integrated into iPhone, iPad, and Mac operating systems. It will become part of the Apple Intelligence suite and is set to launch alongside iOS 26 and other updates this September. The rollout will mark one of the most significant AI upgrades for Apple devices in recent years, bringing faster performance, deeper context understanding, and more creative capabilities. This was reported by our site G.Business, citing Heise.de.
Already Available, But Not Built-In
At present, GPT-5 can already be accessed on iPhone, iPad, and Mac, but only through the standalone ChatGPT app from OpenAI. This means that while users can take advantage of the model’s improved speed, extended context handling, and advanced multimodal capabilities, these functions are not yet integrated into Apple’s native system services. In this app-based form, GPT-5 works independently from Siri, Notes, Mail, or other Apple Intelligence tools, requiring users to launch the ChatGPT application separately for each interaction. Full integration into the operating system — enabling GPT-5 to work seamlessly across built-in apps, voice commands, and Apple’s contextual AI features — will only arrive with iOS 26, iPadOS 26, and macOS 26 in September.
The Current State in iOS 18
In the current releases — iOS 18, iPadOS 18, macOS 15, and visionOS 2 — Apple is using the GPT-4o model. Enabling it is optional for the user. GPT-4o complements Apple’s own algorithms with so-called World Knowledge and also provides image generation via OpenAI’s Image Playground.
What Will Change With iOS 26
With the update to iOS 26, iPadOS 26, and macOS 26 (codename “Tahoe”), GPT-5 will be directly available within Apple Intelligence. The release is expected in mid or late September.
It remains unclear whether users will still be able to manually choose GPT-4o — recently, OpenAI automatically switched all free users to GPT-5, removing the option to revert to the previous model.
How GPT-5 Improves on GPT-4o
| Feature | GPT-4o | GPT-5 |
|---|---|---|
| Processing speed | High | Even faster, optimized for mobile devices |
| Response quality | Very good | More precise and contextually deeper |
| Context length | ~128k tokens | Extended context, improved handling of long texts |
| Multimodality | Text, images, audio | Expanded capabilities, better speech and visual data recognition |
| Energy efficiency on iPhone | Average | Optimized for low-power mode in iOS 26 |
How GPT-5 Will Change Apple Intelligence
- Better understanding of complex queries — GPT-5 will handle multi-step questions and combined tasks more effectively.
- Improved Siri accuracy — deeper integration into Apple Intelligence will make Siri more natural and helpful for everyday use.
- Enhanced document handling — GPT-5 will be able to analyze and structure large volumes of data directly in iOS.
- Expanded creative tools — from generating more realistic images in Image Playground to complex text editing.
- More personalized responses — improved adaptation to the user’s style and interests.
If you want, I can also prepare a separate block with practical examples of what GPT-5 will be able to do in iOS 26 — for instance, new features in Notes, Mail, and Siri — to make the article even more useful for readers.
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