OpenAI has launched the long-awaited fifth generation of its AI model – ChatGPT 5. With improved performance, increased understanding, and more use cases, this version takes a major step forward in artificial intelligence. In this article, we go through the key news, improvements, and what the future may hold for users worldwide.
- First clues and development plans (00:00–01:07)
- Sam Altman hinted at GPT-4.5 before the launch and described GPT-5 as the next big step.
- GPT-4.5 (codename Orion) is the last model based on the old GPT architecture.
- What makes GPT-5 different (01:30–03:14)
- GPT-5 will combine the GPT and “O” models into a unified model.
- It can decide on its own whether a question requires a quick response or deeper reasoning.
- Development challenges (03:44–05:39)
- High costs (up to $500 million per training run) and lack of diverse data.
- They tested new architecture (project Aricus) and restarted with better data collection.
- Features and capabilities (06:02–07:28)
- Full multimodality: text, image, audio, and likely also video.
- Improved memory, integration with external tools, planning, and personalization.
- Enormous model sizes (08:14–10:27)
- GPT-5 could be up to 10 times larger than GPT-4.
- There is speculation about a mixture of experts architecture, with several specialized submodels.
- Integrated chain reasoning (Chain of Thought) (08:59–09:41)
- Combines broad knowledge from GPT-4.5 with precise, step-by-step logic from the O-series.
- Combines broad knowledge from GPT-4.5 with precise, step-by-step logic from the O-series.
- GPT-5 as an “Omni model” (10:48–12:28)
- Imagine a single AI that can do everything: logic, creativity, quick answers, tool usage, and more.
- Enhanced voice communication and proactive assistance from the model.
- Larger context and collaboration (14:16–15:25)
- The context window can exceed 128,000 tokens – possibly on par with Gemini 2.5’s one million.
- The collaboration tool Canvas could become a true AI colleague for brainstorming and planning.
- Not AGI but feels like it (16:16–17:22)
- GPT-5 will not be a “true” AGI (artificial general intelligence), but for many, it will feel like it.
- It can write, analyze, plan, and reason in ways that surpass many humans in certain tasks.
- Expected release (18:37–19:18)
- GPT-5 is expected to arrive in spring or summer 2025, possibly May–June.
- Release will likely happen in stages, with a gradual rollout of features.
A comparison between ChatGPT 4.5 and ChatGPT 5
| Function / Feature | GPT-4.5 | GPT-5 |
|---|---|---|
| Release time | February 2025 | Expected spring/summer 2025 (possibly May–June) |
| Architecture | Classic GPT architecture | New architecture – possibly Mixture of Experts |
| Codename | Orion | Unknown / not disclosed |
| Reasoning | Brute force, less chain of reasoning | Built-in chain of thought logical step-by-step thinking |
| Personalization / Memory | Limited, inconsistent | More reliable and personal persistent memory |
| Multimodality | Text, image (limited) | Text, image, audio – possibly video and interactive response |
| Context window (tokens) | Up to 128,000 tokens | Likely even larger, maybe 1–2 million tokens |
| Model size | Very large (most powerful GPT so far) | 10 times larger in some dimensions (parameters, data, computation) |
| Tool integration | Web browser, code execution, file analysis | More seamless – proactive problem solving and task suggestions |
| Target audience focus | Strong but requires user settings | Automatic adaptation – no model switching needed |
| Collaborative tools | Basic Canvas features | Expected to be expanded for AI-assisted real-time collaboration |
| Development status | Stable but not a “frontier advance” | Next generation AI – defined as “magical unified intelligence” |
| Examples of weaknesses | Less logical reasoning, limited variation in answers | Development challenges, high costs, access to correct data |
