GPT Image 2 vs GPT Image 1.5
On April 20th, a comparison surfaced pitting GPT Image 2 against GPT Image 1.5 — two generations of OpenAI's image generation capability separated by what appears to be an iterative rather than revolutionary jump. The naming itself is telling: this isn't a GPT Image 1 to GPT Image 2 leap, it's a 1.5 sitting quietly between them, suggesting OpenAI released an interim model that didn't get the headline treatment. The comparison originated from ChatGPT's own ecosystem, which means we're likely looking at internal benchmarking or a structured product evaluation rather than independent third-party analysis. What the comparison actually shows — which model wins on photorealism, prompt adherence, text rendering, or consistency — remains thin in the available signal. One source, one score, one data point. The story is young.
If confirmed, here is what this means. The existence of a GPT Image 1.5 alongside GPT Image 2 tells you something important about how OpenAI is managing its image generation roadmap: iteratively, with versioning that doesn't always reach the public announcement cycle. For developers building on the API, this matters — knowing which model you're actually calling, and whether 1.5 or 2 is the default, has direct consequences for output consistency and cost. For competitors like Midjourney, Stability AI, and Adobe Firefly, a structured version comparison published through OpenAI's own channels signals that OpenAI is tightening its internal quality benchmarks and preparing to make clearer capability claims. The second-order effect is subtler: if GPT Image 2 demonstrates a meaningful leap over 1.5 in text rendering or instruction-following — historically the weakest link in AI image generation — it repositions the entire product category.
Watch for independent benchmark results comparing GPT Image 2 and 1.5 across standardised prompts, and for any API documentation update that clarifies which model is now default. Either would sharpen this picture considerably.
<!-- SC_OFF --><div class="md"><p>I just got this pop-off saying that thinking mode now actually improves the accuracy of the images, and it does... like quite a lot. Suddenly, it
  submitted by   <a href="https://www.reddit.com/user/py-net"> /u/py-net </a> <br /> <span><a
<table> <tr><td> <a href="https://www.reddit.com/r/ChatGPT/comments/1t6pfv6/gptimage2_is_not_a_better_midjourney_its_the/"> <img alt="GPT-image-2 is not a “better Midjourney.”
<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1sv5qus/same_prompt_for_gptimage2_vs_nano_banana_2crazy/"> <img alt="Same prompt for GPT-Image-2 vs Nano Banana
<table> <tr><td> <a href="https://www.reddit.com/r/ChatGPT/comments/1t215in/create_a_realistic_photo_of_a_street_in_manhattan/"> <img alt="'Create a realistic photo of a street in
<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1t9c14d/this_is_not_a_real_person_this_is_what_ai_ugc/"> <img alt="This is not a real person this is what AI UGC
<table> <tr><td> <a href="https://www.reddit.com/r/OpenAI/comments/1t7rf9d/i_tried_making_hantavirus_vaccine_using_chatgpt/"> <img alt="I tried making Hantavirus vaccine using
<!-- SC_OFF --><div class="md"><p>Just spent an hour prompting the new Image 2.0 and the quality jump is ridiculous. Complex scenes, accurate lighting, and consistent details on
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