OpenAI’s GPT-Image 1.5 answers the challenge of Google’s ‘Banana’

OpenAI’s GPT-Image 1.5 answers the challenge of Google’s ‘Banana’

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18 December 2025


The battle for dominance in Generative AI has just entered a thrilling new phase. OpenAI has officially launched its new image generation model, GPT-Image 1.5, a move interpreted by the market as a direct and aggressive response to Google’s highly popular Gemini Nano Banana. This release is not merely a routine upgrade; it represents a strategic counterattack aimed at redefining the rules of digital creation.

The Answer to "Code Red"

According to reports from within the OpenAI camp, the release of GPT-Image 1.5 was significantly expedited. Rumors suggest that CEO Sam Altman declared an internal "Code Red" following the massive success of Google’s Nano Banana Pro (also known as Gemini 3 Pro Image). The Google model had managed to captivate the market with its ability to maintain character consistency and its editing precision, forcing OpenAI to react immediately to preserve its competitive edge.

The result of this pressure is a tool that promises to solve some of the most persistent problems AI image generator users have faced to date: speed, editing accuracy, and cost.

Technical Superiority and New Capabilities

GPT-Image 1.5 arrives with impressive technical credentials. OpenAI claims the new model is four times faster than its predecessor, DALL-E 3 (or GPT-Image 1), offering near-instant visualization of prompts. However, the true revolution lies in the "surgical" precision of its editing capabilities.

Until now, a minor change to a prompt (e.g., "add sunglasses") often resulted in a complete regeneration of the image, altering the background, lighting, or even facial features. GPT-Image 1.5 introduces a new architecture that allows for "Precise Edits." Users can now add, remove, or modify specific elements without disrupting the rest of the composition. This capacity for spatial and semantic consistency is crucial for professional graphic designers and marketers who require stability in their visual output.

Furthermore, the model demonstrates significant improvement in in-image text rendering, an area that has traditionally plagued AI models. Generating logos, posters, and infographics with dense text is now far more reliable, minimizing the occurrence of distorted fonts.

Cost Strategy and the API

Beyond technical capabilities, OpenAI is playing hardball regarding pricing. The new model is offered to developers via API at a 20% lower cost compared to the previous version. This move is clearly designed to attract startups and businesses building applications on top of these models—clients who may have begun eyeing Google’s solutions due to cost and performance ratios.

Brand consistency is another strong selling point. GPT-Image 1.5 promises to keep logos and key visual assets unaltered during edits, making it ideal for e-commerce campaigns and advertising.

The Competition with "Nano Banana"

On the other side of the ring, Google is hardly standing still. The Gemini ecosystem, specifically the Nano Banana(Gemini 2.5 Flash Image) and Nano Banana Pro models, has already established a foothold thanks to its ability to maintain character identity across different scenarios—known as "Character Consistency." This feature has become highly sought after by comic creators, storyboard artists, and social media content creators, as it allows for storytelling with the same protagonist.

The name "Nano Banana," which began as an internal codename and was eventually officially adopted by Google, reflects a playful yet confident approach from the tech giant. Google has also invested in "Thinking models" that contemplate physics and logic before generating, allowing for complex compositions and a deeper understanding of the physical world.

What Does This Mean for the User?

For the average user and the professional alike, this rivalry is the best possible news. The era where creating an image via AI felt like a gamble (the so-called "slot-machine effect") is coming to an end. We are now moving into a phase of iterative design, where the user has control, and the tool functions as an obedient and capable assistant rather than an unpredictable machine.

The integration of these tools into everyday applications—from ChatGPT and Microsoft Copilot to Google’s apps on Android—makes high-quality visual creation accessible to everyone. Whether for a quick mockup or professional marketing material, the bar has been raised significantly.

GPT-Image 1.5 is available immediately for ChatGPT Plus and Enterprise users, as well as via API for developers, opening a new chapter in digital creativity and leaving the door open for Google’s next move.

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