Multi-domain benchmark for detecting AI-generated text-rich images from GPT-Image-2
Researchers introduce a new benchmark of 8,602 images across six categories (commercial posters, infographics, academic posters, receipts, tables, UI screenshots) specifically for detecting AI-generated text-rich images produced by OpenAI's GPT-Image-2. Five zero-shot detectors are evaluated, revealing highly domain-dependent performance and severe sensitivity to JPEG compression even in the strongest conventional detector. A multimodal VLM is also explored as a detector, showing promise but limitations on structured formats. The work highlights a gap in existing benchmarks that focus on object-centric rather than text-layout-centric images.
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Image-Semantic Guided Detection of AI-Generated Modern Chinese Poetry Using MLLMs
This paper proposes a multimodal detection method for identifying AI-generated modern Chinese poetry by incorporating images that reflect poetic content alongside text. The approach uses example-driven prompting to integrate meaning, imagery, and emotional cues from images as a complement to textual analysis. A Gemini-based detector using this method achieves 85.65% Macro-F1, outperforming both plain-text LLM baselines and the traditional RoBERTa detector. The work extends AI-generated content detection research into a domain—modern Chinese poetry—previously unaddressed by prior studies.
OpAI-Bench: Benchmark for detecting AI text across progressive human-AI co-editing workflows
Researchers introduce OpAI-Bench, a benchmark for studying AI-text detection across progressive human-to-AI document revision workflows, covering document, sentence, token, and span granularities. Starting from human-written documents, the benchmark constructs nine sequentially revised versions per sample under five AI edit operations and varying AI coverage levels across four domains. Key findings include that mixed-authorship intermediate versions are often harder to detect than fully human or heavily AI-edited endpoints, revealing non-monotonic detection patterns absent from existing benchmarks. The work addresses a gap in AI-text detection research as real-world documents increasingly result from iterative human-AI co-editing rather than pure generation.
Introducing ConTextual: Benchmark for Joint Text-Image Reasoning in Text-Rich Scenes
Hugging Face introduces ConTextual, a new benchmark evaluating multimodal models on their ability to jointly reason over text and images in text-rich scenes. The benchmark targets a specific capability gap where models must integrate visual and textual information simultaneously rather than treating them independently. A leaderboard accompanies the benchmark to track model progress on this task.
Image GPT: Transformer Models Applied to Pixel Sequences for Image Generation and Classification
OpenAI demonstrates that a large transformer model trained autoregressively on pixel sequences can generate coherent image completions and samples, analogous to text generation. The work establishes a correlation between generative sample quality and downstream image classification accuracy. The best generative model achieves features competitive with top convolutional networks in the unsupervised setting, suggesting shared representational principles across modalities.
Introducing ChatGPT Images 2.0
OpenAI has launched ChatGPT Images 2.0, a new image generation model integrated into ChatGPT. The release highlights improved text rendering, multilingual support, and advanced visual reasoning capabilities. This represents an upgrade to OpenAI's consumer-facing image generation offering.
AUDITS: A Comprehensive Benchmark for Image Manipulation Localization Across Multiple Analysis Axes
Researchers introduce AUDITS (Analysis Under Domain-shifts, qualIty, Type, and Size), a benchmark of over 530K images designed to evaluate image manipulation detection across multiple axes including domain shift, manipulation type, and size. The dataset draws from user and news photos and incorporates recent diffusion-based inpaintings. Experiments assess the robustness of existing manipulation detection methods under various domain shifts, aiming to advance development of more generalizable detection approaches.
PGT: Procedurally Generated Tasks for Improving Visual Grounding in MLLMs
This paper introduces Procedurally Generated Tasks (PGT), a data-driven framework that overlays geometric primitives on images to create dense supervision signals for fine-grained visual grounding in multimodal large language models. PGT serves both as a training augmentation method and a diagnostic tool to isolate perception failures from semantic priors. Instruction tuning on LLaVA-v1.5-Instruct augmented with PGT data yields gains of up to +20% on the What'sUp benchmark and +13.3% on CV-Bench-2D. The results suggest that spatial reasoning deficits in MLLMs stem primarily from inadequate supervision rather than architectural or resolution constraints.
OpenAI Introduces GDPval: Evaluation of Model Performance on Economically Valuable Real-World Tasks
OpenAI has released GDPval, a new benchmark designed to measure AI model performance on real-world economically valuable tasks spanning 44 occupations. The evaluation aims to move beyond traditional academic benchmarks by grounding model assessment in tasks with direct economic relevance. This represents OpenAI's effort to better quantify the practical utility and labor-market impact of frontier models.