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OpenAI announced the postponement of the open-source large model release. CEO Sam Altman stated that more time is needed for safety testing. The model was originally scheduled to be released this week but is now delayed until next week to ensure its safety and reliability. Altman emphasized that once the model is released, it cannot be recalled and must be handled with caution. This is OpenAI's first attempt to release a downloadable self-running model, aimed at providing powerful tools for researchers and small businesses. Although the delay is disappointing, the community generally understands the importance of safety testing and believes it is crucial for the AI ecosystem.

MoonDark releases trillion-parameter open-source model Kimi K2, featuring MoE with 32B active params. Excels in coding/math, supports tool use & code execution. Uses MuonClip optimizer, offers API & base model. Key competition to closed-source AI, available via official platforms.....

Mistral AI launched the Devstral2507 series with two AI models: the open-source Devstral Small1.1 (24 billion parameters, SWE-Bench score of 53.6%) and the enterprise version Devstral Medium2507 (score of 61.6%). Small1.1 supports a 128k context window and local deployment, while Medium2507 outperforms some commercial models. Both are optimized for code reasoning and program synthesis, and support integration with agent frameworks.

At the 2025 World Artificial Intelligence Conference, it was revealed that Shanghai has filed 82 large models and is actively promoting AI demonstration applications in key industries such as manufacturing and finance. Xuhui Moshu Space and Pudong Moli Community have become industrial carriers, gathering 500 and 200 AI companies respectively. Shanghai has established a full-cycle financing support system from the early stages to the mature stage through national and municipal artificial intelligence funds, with a focus on key areas such as computing power and language data.

Baidu's stock surged 5% to $90.68, driven by China's booming AI model market. With 1810 projects totaling $64M in H1 2025, Baidu Intelligent Cloud leads in finance and energy sectors, securing 48 projects worth $51M. Partnered with 65% of state-owned enterprises for AI.....

Aliyun open-sources the network agent WebSailor. Its 32B and 72B versions performed well in the BrowseComp evaluation, surpassing multiple closed-source models, ranking just behind OpenAI DeepResearch. The project has been released on GitHub with construction plans and datasets, promoting open innovation in the AI field and providing developers with a smarter web interaction tool.

On July 7, the Tencent Hunyuan 3D team announced the launch of the industry's first art-level 3D generation large model, Hunyuan3D-PolyGen. By employing self-developed high-compression representation BPT technology and a autoregressive mesh generation framework, it enables accurate generation of complex geometric models with up to ten thousand faces. The model has breakthrough solutions for core pain points in 3D asset generation, such as poor topology quality, excessive face count, and difficulty in post-editing. It has improved the modeling efficiency of artists by over 70%. The relevant capabilities have been launched on the Tencent Hunyuan 3D AI creation engine and integrated into multiple game pipelines. Traditional

Tencent launched Hunyuan3D-PolyGen, the industry's first art-grade 3D generation model, using self-developed BPT technology to enhance wiring quality and complex object modeling. It generates high-precision geometric models, supports multiple surface types, and boosts gaming pipeline efficiency by 70+%.....

Musk announces Grok4 AI model launch on July 11, sparking debates on AI ethics due to controversial 'politically incorrect' responses. New rules require multi-source analysis and evidence-based disputes.....

Feidu Tech launched 'Zhengrong Model', excelling in City3D tests with top-tier modeling and semantic understanding. It aids disaster simulation and heritage conservation, offering API for industry AI advancement.....

Tencent open-sourced 'Hunyuan-A13B', an 80B-parameter MoE model with dynamic inference (130B active params). Supports 256K context, trained on 20T tokens. Achieves 87.3% on AIME2024 math, but comparisons show version disparities.....

OpenAI plans to launch GPT-5 this summer, integrating multiple model capabilities. The new version combines reasoning of 'O-series' and GPT's multimodal advantages for enhanced performance. It aims to simplify user experience by eliminating model switching. GPT-5 will boost functionality and usability, though exact release timing remains unclear.....

Open-source multimodal model EarthMind, designed for Earth observation data, uses spatial attention for precise localization and cross-modal fusion to integrate optical and radar data, supporting multi-granular analysis for disaster monitoring and urban planning.....

China's smart speaker market rebounded in 618 2025, with online sales reaching 802K units (+7.5% YoY) and revenue up 15.2%. AI model adoption (36.8% products) drove growth. Xiaomi and Baidu's new models led innovation in voice interaction. The market revival after 4-year slump signals sustained AI-driven expansion.....

Recently, a research team from Renmin University, Shanghai Artificial Intelligence Laboratory, University College London, and Dalian University of Technology revealed an important finding in the reasoning process of large models: when the model is thinking, the 'thinking words' it uses actually reflect a significant increase in its internal information. This research result provides a new perspective for better understanding the reasoning mechanisms of artificial intelligence through methods of information theory. You may have seen large models output some language that seems human-like when answering questions, such as "Hmm..." or "Let me think...".