ChatGPT Free offers free, no-subscription access to advanced AI chatbots powered by the ChatGPT 4 model
ChatGPT4
Since its official presentation by OpenAI, ChatGPT4 (also known as “Chat GPT 4”, “GPT 4”, “Chat GPT-4”) is a major advancement in the field of generative artificial intelligence. Here is a rich and up-to-date overview to understand this model, its characteristics, its uses and what it implies for the future.

Origins and key technologies
The GPT 4 model, announced on March 14, 2023, is described as a "large multimodal model (accepting image and text inputs)." In other words, it is no longer limited to simple text: it also processes images associated with a written context. The technical report indicates that it obtained a score placing its results among the 10% better during a mock exam (bar exam) while the previous version (GPT-3.5) was in the 10% worst performers.
Other technological elements to note:
It uses the large-scale Transformer architecture.
It aims for better reliability, consistency and alignment (reduction of inappropriate responses).
It goes beyond English to offer solid performance in French and other languages.
What's new in Chat GPT 4?
Extended multimodality
One of the big leaps in quality comes from GPT 4's ability to accept mixed text inputs and image. For example: you can provide a screenshot, a graphic, a photo, and the model will respond with text.
Deeper understanding and nuanced instructions
The model is described as more “creative,” more “reliable,” and able to handle complex or nuanced instructions, compared to GPT-3.5.
Languages and context
GPT 4 improves its performance in several languages (including French), and it supports longer contexts than its predecessors.
Enhanced reliability & security
OpenAI says it has invested in alignment (RLHF, adversarial tests) to make GPT 4 “our best model to date” on the criteria of factuality, acceptance of instructions and rejection of inappropriate content.

Concrete uses for the “real world”
Writing and content : for a blog article, a newsletter or even a white paper in French, Chat GPT 4 allows you to generate adapted text, analyze additional images or diagrams, adjust the tone, etc.
Visual support : By uploading a screenshot or diagram, you can ask GPT 4 to provide an analysis, summary, or rephrase its key elements.
Multilingualism : for French-speaking users, the model allows them to interact not only in French but also to translate, to adapt content from another language into French with a finer nuance.
Specialized applications : research, education, image analysis, diagrams, tables – GPT 4 is designed to go beyond the classic “text generator”.
SEO & digital content : in a French web context, the arrival of GPT 4 implies that “simple generated text” is no longer sufficient: we must aim for expertise, authority, enriched content that takes into account multimedia and semantic issues.
Some specific benchmark figures
GPT 4 was announced in March 2023 as “large multimodal”.
It scores in the top 10% on a mock exam, compared to the bottom 10% for GPT 3.5.
It is capable of processing images et input text.
Regarding later variants (even if this strictly exceeds “GPT 4”), the model GPT‑4o (announced May 2024) brings text+vision+audio, faster and less expensive.
According to some analyses, GPT 4 has enabled significantly better performance in various tasks compared to its predecessors.

Limits and points of vigilance
Although powerful, ChatGPT 4 is not perfect : it can still produce “hallucinations” (erroneous information) or implicit biases.
The integration of the image as input is an improvement, but it remains linked to a framework (image quality, good description, clear context) to produce a reliable output.
For uses in French, even if the results are good, the gap between languages remains a subject to monitor.
For SEO optimization, simply “automatically generating” content via GPT 4 does not guarantee good positioning: human expertise, verification, and added value remain essential.
How to use ChatGPT 4
To fully exploit ChatGPT4, it is essential to understand its features and best practices:
Access : Chat gpt 4 is available via the ChatGPT app (Plus or Pro version) and the OpenAI API.
Set a clear goal : state precisely what you expect — writing, summarizing, image analysis, translation, or code generation.
Create a good prompt : the quality of the result depends on the clarity of your instructions. A prompt like “Write an argumentative text on sustainability, your professional” will give better results.
Exploiting multimodality : gpt 4 can analyze text and images simultaneously. Upload a photo, graphic, or screenshot to get a description, interpretation, or contextual response.
Iterate and improve : ask chat gpt 4 to rephrase, adapt the tone, or add examples as needed.
Use advanced functions : Via the API or Pro subscription, you can configure system roles, manage long conversations or automate business tasks.
Maintain human vigilance : Even though gpt 4 is reliable, it can produce factual errors or questionable interpretations. Always validate content before distribution.
Comparison: ChatGPT 4, ChatGPT 5 and GPT 3.5
| Criteria | GPT 3.5 | ChatGPT 4 (GPT-4) | ChatGPT 5 (GPT-5) |
| Model type | Purely textual | Multimodal (text + image) | Multimodal + advanced reasoning |
| Context window | ~4,000 tokens | 8 to 000 tokens | >128,000 tokens (according to OpenAI) |
| Contextual intelligence | Good, but limited | Excellent, more coherent on long texts | Exceptional, close to human reasoning |
| Speed and cost | Fast and economical | Slower but precise | Slower, complex task oriented |
| Accuracy and reliability | Average | High, reduced logical errors | Very high, with internal self-checking |
| Multimodality | Not supported | Yes (image + text) | Yes (image, text, audio, partial video) |
| Creativity and style | Basic | More natural, fluid and nuanced | Very natural, automatically adaptable tone |
| Typical use | Simple chatbots | Writing, analysis, content creation | Automation, intelligent agents, advanced search |
| Availability | Free version | Plus / API Version | Premium version (2025) |
| Note globale | ★★★ ☆☆ | ★★★★ ☆ | ★ ★ ★ ★ ★ |
Comparison table analysis
ChatGPT3.5 remains ideal for basic or high-volume uses, such as the rapid generation of short texts.
GPT chat 4 is today the most balanced model: it combines power, multimodality and stability, while remaining accessible via the ChatGPT Plus subscription.
ChatGPT5, for its part, marks a new stage: its reasoning and multimodal integration capabilities bring it closer to a true “cognitive assistant”.
In 2025, according to OpenAI, more than 80% of companies integrating generative AI use a GPT-4 or higher model in their internal processes. This confirms the central position of ChatGPT4 as a pivot between the previous generation (GPT-3.5) and the new era inaugurated by GPT-5.
In conclusion
ChatGPT 4 represents a significant step forward in generative AI: more multimodal, more refined, better aligned, and ready for a variety of uses in the French-speaking world. However, it is not an automatic "human replacement": it is a powerful tool, which should be used with discernment, combining it with human expertise, rigorous verification, and an ambitious content strategy.
For anyone looking to leverage chat gpt 4 in their content production or digital strategy, it's crucial to think in terms of added value: enriched, well-researched, relevant content, tailored to the French audience, and faithful to the principles of expertise, authority, and reliability.
ChatGPT 4 FAQ
Q: Is using ChatGPT 4 free?
Yes, available for free on chat.openai.com or iOS/Android apps, with limits. ChatGPT Plus (~€20/month) allows you to send 3 messages per week.
Q: Is it possible to use Chat GPT 4 in an academic setting?
Yes, I can help with explanations or drafts, but it is best to avoid final assignments to prevent plagiarism.
Q: Is it safe for children?
Yes, under supervision. Enable filters and refrain from using sensitive data to ensure safe use.
Q: Is it able to create images?
Indeed, thanks to GPT-4o (introduced in March 2025 and integrated into Sora, succeeding DALL-E).
Q: What are the differences between GPT-4 and GPT-5?
GPT-5 handles voice/video, reduces hallucinations by 45-80%, and provides 196k tokens of context.
Q: What is the method to prevent bias?
Use specific instructions and monitor responses using third-party sources to reduce bias.
Q: What integrations are available?
Gmail, Google Calendar, GitHub, and agents for purchasing or scheduling.
Q: Is it likely to replace jobs?
No, it acts as an assistant rather than a substitute for humans, according to Stanford HAI.

