Full prompt Photorealistic depiction of a man wearing a clearly visible black OpenAI-branded T-shirt. He is standing at the front of a university lecture hall, writing complex mathematics and AI-related equations across a large, dusty chalkboard filled with notation
What this tests: Photorealistic, corporate tech style. Tests realistic text/handwriting generation (equations), accurate human anatomy/collaboration poses, and clear clothing branding.
Every model received exactly this prompt and generated a square image at up to 2K. The images were judged side by side; below they are ranked by the judge's 1–10 score, with the written critique for each. Best AI image generator for Ultra Hard →
Ranked 2nd of 13, this is an exceptionally convincing classroom photograph with strong equation generation. It falls slightly behind the winner in complete equation visibility and overall presentation clarity.
A man in a black OpenAI-branded shirt writes reinforcement-learning equations on a large chalkboard, viewed past softly blurred students.
Ranked 2nd of 13, this is an exceptionally convincing classroom photograph with strong equation generation. It falls slightly behind the winner in complete equation visibility and overall presentation clarity.
A man in a black OpenAI-branded shirt writes beside neatly organized chalkboard sections on spectral geometry, heat equations, gradient flow, and neural tangent kernels.
Ranks second, with particularly impressive mathematical handwriting and photographic credibility. It narrowly trails the first image because its lecture-hall staging is less fully developed.
A lecturer wearing a black OpenAI-logo T-shirt writes on a chalkboard containing clearly organized AI equations, with students visible in the foreground.
Ranked 1st of 13, this provides the strongest combination of accurate mathematical content, clear branding, and believable human anatomy. Slightly over-regular handwriting keeps it below a flawless score.
A glasses-wearing lecturer in a black OpenAI shirt writes on colorful green chalkboards beside a lectern, with students seated in a tiered lecture hall.
An excellent interpretation with outstanding environmental richness, clear branding and compelling composition. Minor notation and background-detail issues keep it just behind the best-balanced result.
A rear-facing lecturer in a black OpenAI-logo shirt writes on an expansive chalkboard covering transformers, reinforcement learning, diffusion models, and neural networks.
Ranked 3rd of 13, this offers excellent scene coverage and unusually extensive AI-related content. Uneven precision in the smaller equations prevents it from matching the two leading images.
A bearded man in a black OpenAI T-shirt writes on a color-coded AI chalkboard in a bright lecture hall with desks, books, and laptops.
Ranked 3rd of 13, this offers the strongest visual polish and corporate-tech presentation. Its conspicuous nonsense labels prevent it from surpassing the two more textually successful images.
A lecturer seen from behind writes on a large, sectioned chalkboard containing extensive AI equations, with a wooden teaching desk in the foreground.
This is one of the strongest results for realistic technical writing and believable classroom construction. Its relatively static presentation and softer subject detail place it below the two leading images.
An OpenAI-branded lecturer writes beside structured AI concepts and formulas, while students take notes and a wall displays an Alan Kay quotation.
Ranked 4th of 13, this excels at believable classroom storytelling and readable contextual text. Its inconsistent mathematical filler places it below the more rigorous equation-focused images.
A lecturer wearing a black OpenAI-logo shirt writes beside a neural-network diagram on a heavily dusted chalkboard, with students' heads visible below.
A strong, faithful lecture photograph with successful branding and substantially meaningful mathematical detail. Small notation weaknesses and a busier chalk texture prevent it from reaching the leading tier.
A gray-haired man wearing glasses and a black OpenAI T-shirt holds chalk beside a board of machine-learning formulas in an older university hall.
Ranked 5th of 13, this combines strong portrait realism with clear branding and credible AI notation. Repetitive equations and the less decisive writing action limit its comparative standing.
A gray-haired lecturer in a black OpenAI shirt writes AI equations on a dusty chalkboard while students sit in a tiered university lecture hall.
Ranks third through strong prompt coverage and convincing university lecture staging. It falls below the leading pair because its secondary faces and chalkboard content are less consistently precise.
A glasses-wearing man in a black OpenAI shirt writes beside neatly arranged transformer, cross-entropy, gradient-descent, and backpropagation material on a large chalkboard.
Ranks fifth, combining excellent photographic execution with weaker mathematical and handwriting authenticity. Because equation generation is a central test, the polished appearance cannot fully compensate for those shortcomings.
A bespectacled lecturer in a black OpenAI-logo shirt writes on a large green chalkboard beside a lectern and laptop, with tiered university seating behind him.
Ranked 6th of 13, this is a solid photographic interpretation with particularly convincing writing anatomy. Its less reliable equation content keeps it below the excellent group.
A smiling, gray-bearded lecturer in an OpenAI T-shirt writes beside a neural-network diagram while students sit behind him.
Ranked 5th of 13, this is a convincing and engaging lecture photograph with clear branding. Weak equation generation keeps it below the more scientifically credible entries.
A bearded lecturer with glasses and a black OpenAI T-shirt writes on a chalkboard beside a crowded, tiered university audience.
Strong photography, anatomy and environmental context make this a good result. Its mathematical handwriting is materially less successful than its visual presentation, which limits the overall score.
A man wearing a black OpenAI shirt writes beside machine-learning formulas on a green chalkboard in a daylight-filled university classroom.
Ranked 4th of 13, this succeeds through believable photography and relatively meaningful AI notation. Reduced board density and the smaller classroom interpretation limit its overall adherence.
A close-view lecturer in a black OpenAI shirt and identification lanyard writes on a dusty chalkboard, with tiered student seating behind him.
A polished lecture portrait with convincing anatomy and strong environmental texture. Failure in the central equation-generation requirement substantially reduces its otherwise high visual quality.
A man with an OpenAI-branded black shirt writes on a huge dusty chalkboard in a traditional wooden lecture hall, surrounded by dense formulas, graphs, and a small colored chart.
Ranks sixth, supported by strong environmental realism and clear branding. The image remains only moderately successful because its most prominent detail—the mathematics—is not convincingly readable.
A front-facing man in a black OpenAI shirt gestures with chalk toward an organized AI chalkboard while a student's head appears in the foreground.
The image succeeds as an attractive branded teaching portrait but only partially fulfills the requested activity. Incorrect equation rendering and the absence of visible writing keep it below the stronger lecture scenes.
A bearded man in a black shirt marked OPENAI writes on a large chalkboard in a sunlit, traditional lecture hall with wooden benches.
Ranked 7th of 13, this is visually strong and establishes the requested setting effectively. Its attractive presentation cannot compensate fully for the largely fabricated mathematics.
A man wearing a clearly printed OpenAI T-shirt writes on a heavily smeared chalkboard in a warmly lit lecture hall with upholstered seats.
Ranked 8th of 13, this delivers convincing human anatomy and a clearly identifiable lecture hall. Its equation-generation failure is substantial despite the strong photographic execution.
A young man with glasses writes on a green chalkboard in an empty tiered lecture hall, wearing a black shirt with an OpenAI wordmark and a polygonal emblem on the back.
Ranks seventh, offering a strong photographic setting and credible writing pose. Incorrect logo construction and weak equation generation keep it below the more complete examples.
A young man in a black OpenAI shirt writes with white chalk in an empty lecture hall, surrounded by conspicuous chalk dust.
Ranked 6th of 13, this performs well as a photograph of someone writing on a chalkboard. Invented mathematics and imperfect logo treatment prevent a stronger result.
A man wearing a black OPENAI T-shirt writes on a green classroom chalkboard, viewed over seated students.
Ranked 7th of 13, this supplies clear branding and a convincing lecture context. Its ordinary composition and weak scientific writing keep it in the middle tier.
A young man wearing a black T-shirt with a large white OPENAI wordmark holds chalk against a board beside empty wooden lecture-hall seating.
Ranks eighth despite excellent portrait-level photographic quality. Clear branding and believable anatomy cannot fully compensate for the weak emphasis and execution of the requested equation-filled chalkboard.
A man in a plain black T-shirt writes on a densely covered green chalkboard, with rows of empty wooden lecture seats in the foreground.
A competent classroom photograph with a believable writing pose. Missing visible OpenAI branding and unreliable equations substantially weaken its success against the specific prompt.
A glasses-wearing man writes on a broad dusty chalkboard containing formulas and network-like diagrams, with a laptop, lectern, and blurred classroom desks nearby.
Ranks tenth because it misses the requested OpenAI branding and delivers weak mathematical text. Competent photographic execution and a credible classroom environment keep it above the bottom two.
A curly-haired lecturer holds a sheet of paper and writes on a dark chalkboard filled with multicolored notation, standing between wooden classroom benches.
Ranks ninth, with strong atmosphere but unsuccessful execution of the prompt's text and branding priorities. The convincing room and full-body staging prevent it from being a complete failure.
A dark-haired man writes on a heavily dusted blackboard while wearing a black shirt marked open.AI with a geometric emblem.
Ranked 9th of 13, this is visually polished but fails two important textual requirements. Altered branding and pseudo-mathematics outweigh the convincing photographic finish.
A bearded man with glasses wears a black OpenAI shirt and writes large algebra-like expressions on a green chalkboard.
Ranked 10th of 13, this succeeds as a realistic portrait but only partially as the requested university AI lecture. Missing environmental context and conspicuously meaningless equations outweigh its clean rendering.
A gray-haired man in a black OpenAI shirt stands beside an open book and an enormous equation-covered board in an ornate, wood-paneled lecture hall.
Ranked 9th of 13, this has exceptional atmosphere but weaker photographic and semantic credibility. The elaborate setting cannot overcome unreliable equations and the ambiguous writing interaction.
A rear-facing man with a large OpenAI logo on his black shirt writes on a chalkboard in warm side light, surrounded by books and classroom desks.
Excellent atmosphere cannot compensate for the largely unsuccessful mathematical content. It is aesthetically strong but only mediocre as a faithful execution of this equation-focused prompt.
A man wearing a black OpenAI shirt writes on a blue-gray chalkboard, with lecture-hall seating visible behind him.
Ranked 10th of 13, this retains recognizable branding and the requested general activity. Weak scientific writing and a comparatively synthetic finish keep it in the mediocre tier.
A man in a black shirt with a white square emblem writes on a large green chalkboard before students seated at wooden desks.
Ranked 11th of 13, this is photographically competent but misses a central clothing requirement. The combined branding failure and incoherent scientific writing significantly outweigh its visual strengths.
A man wearing a black OpenAI T-shirt stands before faded green chalkboards in an empty lecture hall, resting one hand on the front bench.
A realistic lecture-hall photograph that misses both visible writing and meaningful, extensive equations. Those central omissions outweigh its otherwise competent photographic execution.
A rear-facing man in a black OpenAI T-shirt reaches high toward a chalkboard filled with oversized, blurred mathematical-looking marks.
Ranked 11th of 13, this retains the correct branding but weakly executes the surrounding lecture scene. Unreadable notation and an unconvincing writing gesture substantially reduce its usefulness.
A man wearing a black openAI shirt raises a dark implement toward a blurred chalkboard while standing among empty lecture-hall seats.
Ranked 12th of 13, this is an appealing portrait but a weak execution of the specified activity. Unclear writing contact, questionable placement, and unreadable equations substantially reduce its usefulness.
A short-haired man faces a crowded green chalkboard while wearing a black shirt with a malformed white OpenAI-like wordmark.
Ranked 12th of 13, this has reasonable photographic surfaces but fails two central text-generation requirements. Incorrect branding and meaningless notation outweigh its otherwise plausible human figure.
A man with glasses writes on a broad gray chalkboard in a plain classroom, wearing a black shirt with an imperfect OpenAI-like rear wordmark.
Ranked 13th of 13, this is the weakest combination of branding accuracy, mathematical content, and lecture-hall context. Competent basic anatomy does not compensate for those central omissions and textual failures.
A man writes on a dusty gray chalkboard in a classroom, wearing a black shirt with the incorrect wordmark 'OPENI' across his back.
This is the weakest result because both clear OpenAI branding and meaningful notation fail simultaneously. Its recognizable classroom scene cannot compensate for those central content errors.
A bearded, gray-haired man in a dark shirt holds chalk in both hands before a blurred chalkboard, with a small plume of dust above his raised hand.
Ranks last because the clear OpenAI branding, active board-writing action, and readable mathematical content are all missing or inadequately depicted. Attractive portrait lighting cannot compensate for those central prompt failures.
A man stands before an enormous notation-covered chalkboard in a dramatically lit room, with scattered books and malformed orange shirt lettering.
Ranked 13th of 13, this is the least successful image despite its cinematic appeal. The apparent extra arm, failed branding, and pervasive pseudo-mathematics are substantial failures.