Published on: April 17, 2025 / update from: April 17, 2025 - Author: Konrad Wolfenstein
Current Openai Chatgpt Ki models (GPT-O1/O3/4/4O/4.1/4.5) and their areas of application-lost overview? The agony of choice! - Image: Xpert.digital
The Chatgpt family in April 2025: models and possible uses
Overview: The current Chatgpt models in practical use-all models and your specializations in detail
Chatgpt has continued to develop since its introduction and now offers an extensive toolbox of different models for different applications. Each of these models has specific strengths and is suitable for certain areas of responsibility. The following models form the current status of the Openai Chatgpt family in April 2025.
Suitable for:
GPT-4O: The multimodal all-rounder
GPT-4O (“Omni”) is a versatile multimodal model that serves as a solid all-rounder for most applications. It can switch seamlessly between text, images and audio, which makes it an ideal tool for mixed media content.
Areas of application:
- General conversations with multimodal content
- Social media content creation
- Language processing and recognition (surpasses newer models)
- Fast reactions in mixed media formats
- Support of the special “Chatgpt Tasks” feature for autonomous tasks
GPT-4O offers a balanced combination of speed and versatility and is particularly effective when fast reactions are required when processing various media types.
GPT-4.5: The creative Empath
GPT-4.5 is currently the largest model from Openai and is characterized by special strengths in natural conversations and emotional intelligence. It was optimized for reduced hallucination behavior, improved context understanding and creative flexibility.
Areas of application:
- In -depth, emotional and natural conversations
- Creative writing projects with high demands on empathy
- Complex tasks that require emotional understanding
- Processing of text, image and file inputs with the highest quality
The costs for the use of the API of this model are higher than in other models-around € 0.07 per € 1,000 input tickets and € 0.14 per 1,000 output tickets.
O1 (Pro): The profound thinker
The O1 model is OpenAis specialist for complex problem solutions and uses an invisible chain of thought (“Chain of Thought”) invisible to users. It is particularly convincing in demanding technical domains, but needs more time to generate the answer.
Areas of application:
- Mathematical problems and complex calculations
- Scientific questions and analyzes
- Data analysis with multiple steps
- Programming tasks that require well -thought -out solutions
The special added value of O1 lies in its ability to step through complex problems step by step and to tend to hallucinations less than other models. The longer response time is the price for this thoroughness.
O3-Mini: The MINT specialist
O3-Mini is a fast and inexpensive model that has been specially optimized for technical and scientific applications. It offers three different performance levels (low, medium, high).
Areas of application:
- Technical documentation and MINT content
- Scientific questions
- Programming tasks and code creation
- Applications with a limited budget, which still require technical precision
This model is particularly suitable for users who work regularly with technical content, but do not require full performance (and the associated costs) of the larger models.
GPT-4O-Mini: The inexpensive variant
GPT-4O-Mini is a more compact and cheaper version of GPT-4O. With around 8 billion parameters, it requires less computing power, but retains basic multimodal skills.
Areas of application:
- Budget-oriented applications with basic multimodal requirements
- Text and image processing for easier tasks
- Entry into the use of AI models for small companies
- Applications in which lower arithmetic requirements are important
This model offers a good compromise between performance and costs for users who need multimodal functions, but work with a limited budget.
GPT-4 (will be discontinued at the end of April 2025)
GPT-4 was the standard model from Openaai for a long time, but is removed from the chatt service on April 30, 2025, according to the official announcement on April 30, 2025. However, the API interface remains so that existing applications can continue to function.
Areas of application (up to the setting):
- Pure text assignments
- Older systems and applications that were specially developed for GPT-4
- Situations in which proven stability has priority over recent functions
Suitable for:
New API models: GPT-4.1 family
The GPT-4.1 model family is only available via the API and is primarily aimed at developers. These models are not accessible directly in the Chatgpt user interface.
GPT-4.1
Areas of application:
- Professional software development with a stable code edition
- Structured response formatting
- Agent applications with improved long -term memory
- Targeted code changes (code diffs)
GPT-4.1 Mini
Areas of application:
- Cost sensitive applications (83% cheaper than GPT-4O)
- Scenarios that require high speed (twice as fast as GPT-4O)
- Multimodal applications with good price-performance ratio
GPT-4.1 nano
Areas of application:
- Particularly latency -critical applications
- Classification tasks
- Auto -completion
- Information extraction
- Highly volume, cost -optimized application cases
The right model for your requirements
The variety of chatt models makes it possible to find the right solution for almost every application. While GPT-4O is suitable as a versatile all-rounder for most general tasks, special models such as O1 offer optimized solutions for specific requirements for complex problems or O3-mini for technical tasks. Cost-efficient alternatives such as GPT-4O-Mini enable the use of advanced AI technologies even with a limited budget.
With the upcoming elimination of GPT-4 and the continuous development of the model range, the Chatgpt landscape remains dynamic and steadily adapts to the requirements of the users.
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