GPT Image 1.5 : OpenAI contre-attaque Nano Banana !

GPT Image 1.5 : OpenAI contre-attaque Nano Banana !

GPT Image 1.5: OpenAI strikes back at Nano Banana!

🎙 Renaud Dékode 👥 249K 📅 December 18, 2025 ⏱ 19 min 👁 3K 📄 expert opinion 🧭 2026-09-07
Available in: English (current) Français

Keywords

GPT Image 1.5OpenAIimage generationimage editingNano Banana

Summary

In this video, Renaud Dékode presents his first impressions of OpenAI’s GPT Image 1.5, a new image generation and editing model released on December 16, 2025. He positions it as a direct competitor to Google’s Nano Banana (Gemini 3 Pro) and highlights its performance on leaderboards like LMArena, where it reportedly leads in both text-to-image and image editing. The video covers the model’s availability in ChatGPT and via API, noting that it is faster and cheaper than previous versions, and that it can handle both text and image inputs, including image understanding. Dékode demonstrates several tests: generating an image of a duck on a horse, editing a clock into a living room, changing flower colors, creating an infographic on Aristotle’s wheel paradox, and attempting a complex multi-step edit of his own photo. He notes improvements in text rendering, consistency across iterative edits, and the ability to preserve details in multi-image references (first five images are better preserved). He also mentions a new dedicated ‘Images’ section in ChatGPT. However, he points out some limitations, such as occasional errors in complex scenes (e.g., chessboard) and slower response times in the ChatGPT interface compared to the API. The video concludes with an invitation to share experiences on his community site.

207 words

Critical Evaluation

Value of the Information & Strength of the Argument

The video provides a practical, hands-on evaluation of GPT Image 1.5, offering concrete examples of its capabilities and limitations. The creator’s argumentation is based on personal tests and comparisons with Nano Banana, which adds authenticity but also subjectivity. He acknowledges that his tests may not reflect all use cases and encourages viewers to try the tool themselves. The value lies in the demonstration of real-world applications, such as editing photos, creating infographics, and using the API for automation, which can help viewers understand the tool’s potential. However, the lack of systematic benchmarking and reliance on anecdotal evidence limits the strength of the argumentation.

Scientific Rigor, Source Quality, Title Accuracy

The video does not cite specific scientific sources but references LMArena leaderboards as a basis for performance claims. The creator mentions that he read a reference document about the five-image input limit, but does not provide a direct link. The title accurately reflects the content, focusing on the competitive aspect against Nano Banana. The video is a subjective review rather than a rigorous scientific analysis, and the creator is transparent about his personal preferences and testing conditions. No comments were provided for analysis.

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Title / Content Match

The title accurately reflects the content: a review of GPT Image 1.5 positioning it against Google's Nano Banana.

Quality & Reliability

6/10

The video is a hands-on, opinionated review of GPT Image 1.5, based on personal tests and anecdotal evidence. It references leaderboards like LMArena but does not provide systematic methodology or external verification. The creator is transparent about his subjective impressions and encourages viewers to test for themselves.

Key Moments

Cited Sources

  • Renaud Dékode's website — Mentioned as a community platform for sharing experiences and further discussion.

Concurring Sources

Contribution & Novelties

The video offers a practical, hands-on review of GPT Image 1.5, highlighting its improvements in text rendering, iterative editing, and multi-image reference handling. It provides real-world examples of use cases, such as creating infographics and editing photos, which can help users understand the tool’s capabilities. The creator also notes the model’s ability to understand and describe images, a new feature compared to previous versions.

Pour aller plus loin :

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Radar Profile

The radar profile shows a balanced but moderate performance across all dimensions, with slightly higher scores in information quantity and technical level, reflecting the hands-on nature of the review. The lower reliability score indicates the subjective and anecdotal basis of the content.

Reliability 5/10