GPT-5.2 is now available: A thorough explanation of evolutionary points, advantages and disadvantages
What is GPT-5.2?
OpenAI announced its newest AI model, GPT-5.2, on December 11, 2025. This model is released as a further performance improvement over the previous generation GPT-5 and GPT-5.1, especially in its ability to handle knowledge work and practical tasks. GPT-5.2 is progressively available on ChatGPT's paid plans and is also available via API.
GPT-5.2 has three variations, "Instant," "Thinking," and "Pro," which can be used from instant response to deep inference, depending on the application.
What has evolved - major changes
📈 Improvements in Practical and Knowledge Work Performance
The most significant feature of GPT-5.2 is its professional work performance, with ratings showing equal or better performance than professionals on knowledge work tasks across 44 occupations, and on practical tasks such as spreadsheet creation, presentation creation, long-form analysis, and complex project management. Accuracy and efficiency have improved significantly.
🤖 Enhanced reasoning and long-text comprehension
GPT-5.2 is able to understand and process longer sentences and handle information spanning hundreds of thousands of tokens in a consistent manner. GPT-5.2 has improved** its ability to handle complex and lengthy tasks, such as integrating information scattered across multiple documents and analyzing reports.
🧠 Reduction of misinformation (halcination)
Fewer misinformation and inappropriate responses are being made more reliable. This provides greater peace of mind** in critical business writing, data analysis, and other applications where errors are to be avoided.
🧾 Improved coding and tool integration
GPT-5.2 also features advancements in programming tasks and tool integration, improving the accuracy of tool invocation in practical-level code generation and debugging and in complex workflows. This makes AI-based development work even more practical.
Advantages of GPT-5.2
✅ 1. highly practical business support
GPT-5.2 is designed not as a mere conversational AI, but as an AI that is truly useful in practical business operations. It contributes to the efficiency of everyday business tasks such as mass data analysis, report writing, and presentation material composition proposals.
✅ 2. High accuracy and reliability
Fewer incorrect answers than the previous model, making it more reliable and easier to use for critical tasks. More accurate for long and complex inferences.
✅ 3. multimodal support
GPT-5.2 has enhanced image analysis as well as text, increasing the accuracy of understanding charts, pictures, software UI, etc. It can be used for tasks that include visual information.
✅ 4. Versatile model selection
With multiple models such as "Instant," "Thinking," and "Pro," you can choose whether you want to use it for speed, reasoning, or specialized tasks.
Disadvantages and cautions of GPT-5.2
⚠️ 1. higher cost
The cost of using the newest model may be higher** than that of the older model. Especially for high frequency use or large scale use with API, it is necessary to consider the burden of the fee.
⚠️ 2. Risk of Incomplete Misinformation
While the halcination rate has been reduced, misinformation and inaccurate proposals have not been completely eliminated. Human checking is still required for critical applications.
⚠️ 3. Paid plan required for use
Note that many features of GPT-5.2 are provided with a paid plan, so free use alone does not provide full functionality.
⚠️ 4. Functional Differences from Competitors
Competition from other companies' models, such as Google's latest AI "Gemini 3," is fierce, and another AI may be advantageous for some applications (e.g., direct Internet search).
Summary
GPT-5.2 is a model that has been perfected as a full-fledged business AI, not just a talker. It surpasses the previous generation in terms of performance, reliability, and flexibility, and is expected to be of great value in practical use and in complex tasks. On the other hand, it has not yet completely eliminated the risk of cost and misinformation, so care must be taken in its use.
By utilizing GPT-5.2, it is highly likely to improve daily business efficiency and ease the handling of complex cases.
- Information is organized based on published press reports and official announcements. Usage examples and evaluations are based on general press reports and technical explanations.