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8月3日周一
8月2日周日
  1. MiniMax (official)48

    MiniMax 宣布其视频生成模型 H3 即将开源(open weights)。有用户反馈,H3 生成视频的质量和数量均优于 2.5 版本,且成本更低、推理速度更快、自定义音频上传功能正常。该用户认为,在创意工具领域,成本与速度最终将决定胜负,规模化后有望实现无限生成。

    引用𝔹𝕃𝕍ℂ𝕂𝕃!𝔾ℍ𝕋@BLVCKLIGHTai

    I’m seeing way better videos coming from H3 than 2.5 on the timeline. And more of them. I think cost is a big part of it, plus the speed of inference, and custom audio uploads working as intended. My thesis holds still that at a certain point unless you are actually fixing the pressure points creatives have with your tools, cost and speed are going to win. Unlimited generations are NOT a pipe team. It all comes down to hourly costs divided by users. At some point if you can scale you’ll run at a surplus and can run unlimited.

8月1日周六
  1. Tibo55

    OpenAI 下一代模型 Astra 证明了 10 项重大数学成果,包括推翻 Connes 刚性猜想、改进高维球堆积与电路复杂度下界等。每项证明均附带 Lean 证书与 CoT 推理过程,相关细节已发布于官方博客。

    引用Sebastien Bubeck@SebastienBubeck

    是的,非索菲群确实存在:这一陈述是 Astra——我们的下一个重大模型——所证明的众多新的漂亮结果之一。 我们正在发布 10 个这样的 Astra 证明,每个都附有完整的 Lean 证书和思维链(CoT)详解。这些结果范围广泛,从冯·诺依曼代数(对 Connes 刚性猜想的反证)到高维球填充、电路复杂度、多色图中的单色三角形等问题的更优界,等等。 更多想法见:https://openai.com/index/ten-advances-in-mathematics/

  2. Noam Brown72

    OpenAI 下一代模型家族 Astra 的内部版本解决了数学、量子复杂性和理论计算机科学领域的 10 个重大开放问题,被视为科学推理的重大进步。生成全部 10 项突破证明的总成本在 Sol API 价格下不足 2,000 美元。OpenAI 期待即将推出的 Astra 模型能助力科学家与研究人员。

    引用Noam Brown@polynoamial

    An internal version of Astra, @OpenAI’s next major model family, solved 10 major open problems in mathematics, quantum complexity, and theoretical computer science. We believe it will be a major step for scientific reasoning. https://openai.com/index/ten-advances-in-mathematics/

  3. Noam Brown75

    OpenAI 下一代模型家族 Astra 的内部版本解决了数学、量子复杂性和理论计算机科学领域的 10 个重大开放问题,包括计算永久式的新电路下界。OpenAI 认为这将是科学推理领域的一大步。

    引用Lijie Chen@wjmzbmr1

    10 proofs from our next major model Astra on long-standing open problems in mathematics and theoretical computer science (also including new circuit lower bounds for computing the permanent!) GPT-5.6 has already enabled so much exciting work in math and science. Can’t wait to see what comes next!

  4. MiniMax (official)60

    MiniMax 发布开源权重视频模型 H3,在 Artificial Analysis 视频编辑榜登顶,文本生视频排名第二、图像生视频排名第三。H3 支持文本、图像、视频、音频统一输入,原生生成 2K 24fps 5-15 秒带立体声片段,定价每分钟 2K 视频 $7.80,远低于 Seedance 2.0 的 $22.45 和 Kling 3.0 的 $20.16。

    引用MTS@MTSlive

    SITUATION EXPLAINED: MiniMax released H3 with open weights, and it's already #1 in video editing. • Priced at $7.80 per minute of 2K video, against Seedance 2.0 at $22.45 and Kling 3.0 at $20.16 • It ranks #1 on Artificial Analysis for video editing, #2 for text-to-video behind Gemini Omni Flash, and #3 for image-to-video • H3 takes text, images, video, and audio in a single context and generates 5-15 second clips at native 2K, 24fps, with native stereo audio • MiniMax is releasing the weights under its Community License within days, which would make it the strongest open-weights video model by a wide margin • It launched the same week ByteDance rolled out Seedance 2.5, which now generates 30-second 4K video from a single prompt • Seedance 2.5's face consistency across a full 30 seconds is the visible jump, earlier models drifted into a different face partway through • Voices are still the obvious tell, the video reads as real long before the audio does • Smaller labs building purpose-built video models are now beating frontier labs at this specific task @theojaffee: "This is gonna be one of the biggest examples of things that people are gonna do with these models, historical simulations, basically. Nostalgia videos for zoomers."

  5. IT之家·人工智能50

    OpenAI 奥尔特曼推介 Astra 模型:协同 AI 智能体工作,主打长周期任务能力

    OpenAI 首席执行官奥尔特曼本周在美国国会山展示名为 Astra 的全新 AI 系列模型,重点提升长周期任务处理能力。Astra 支持智能体拆分任务,让多个智能体协同工作,解决单个智能体无法处理的复杂问题。奥尔特曼于 7 月 29 日会见美国参议员拉斐尔·沃诺克和伯尼·莫雷诺。

  6. Artificial Analysis78

    DeepSeek 发布开源模型 DeepSeek V4 Flash 0731,在 Artificial Analysis 智能指数上得分 50,位列开源模型前三。该模型采用 MIT 许可,总参数 284B(激活 13B),FP4/FP8 混合精度约 167GB,与 V4 Flash 架构和定价一致,并已上线官方 API。

    推荐理由:DeepSeek 把 V4 Flash 的智能效率往前推了一步,MIT 许可让商业应用毫无顾虑,做轻量级部署的团队可以立刻换上。

  7. MiniMax (official)68

    MiniMax H3 现已在 OpenArt 上线,支持 2K 分辨率视频与原生音频生成,可生成 5 至 15 秒片段。该模型支持文本、图像和音频生成视频,并支持起始帧、结束帧及参考图像。OpenArt 的 Wonder 用户可免费无限使用 H3 至 8 月 5 日,开源权重即将发布。

    引用OpenArt@openart_ai

    MiniMax H3 is live on OpenArt 🔊 @MiniMax_AI • 2K video with native audio built right in • 5 to 15 second clips • Text, image, and audio to video • Start frame, end frame, and reference image support • Wonder users get unlimited H3 until August 05. Terms & conditions apply. Try it now: http://openart.ai/suite/create-video/minimax-h3

  8. Greg Brockman46

    luna 是一个出色且低成本的模型。

    引用Simon Willison@simonw

    OK, GPT-5.6 Luna is a bit of a beast. Given the 80% price drop today I decided to try it in Datasette Agent, and it's furiously quick and generates all the SQL, HTML and JavaScript (for Datasette Apps) I could possibly want

  9. The Decoder:AI News66

    Google DeepMind 推出 Gemini Robotics 2,为各类机器人提供智能层

    Google DeepMind 发布 Gemini Robotics 2,称其为迄今最先进的视觉-语言-动作(VLA)模型,可控制从桌面机械臂到全身人形机器人的各类系统。该模型支持全身运动、精细操作及多机器人协同,开发者可通过候补名单申请早期访问。同期发布的 Gemini Robotics ER 2 专为具身推理设计,已上线 Google AI Studio。

  10. Rohan Paul44

    Atomic Chat 将 Kimi K3 量化为 1-bit,模型从 2.8T 参数压缩至 590GB(-62%),保留 78.7% 原始质量和完整 1M 上下文。

    引用atomic.chat@atomic_chat_hq

    1-bit Kimi K3 performs at Opus 5 level on 3D physics! We ran our Atomic Chat quant of Kimi K3 locally on 4x B200 against three cloud models and gave them all the same task, to build a giant anvil drop test as a single HTML file with real physics Outputs: K3 1bit (local): 15.8K tokens, $0 API cost Kimi K3 (API): 15.3K tokens, $0.30 API cost Opus 5: 22.8K tokens, $0.77 API cost GPT 5.6: 14.5K tokens, $0.72 API cost All four got the physics right. But only Kimi made a working winch. The drum turns and the chain drags the flat car off the pad. Opus 5 drew the most detail, road markings and sparks on the hit. And you can run a model at this level on your own box now. That still feels insane to us

  11. MiniMax (official)63

    MiniMax H3 现已上线 Leonardo.ai,可从单条片段直接生成带声音、角色和创意意图的成片。H3 为轻量级全模态模型,支持从参考图锁定角色与声音,适用于广告、电商、游戏及 UI 等商业级场景。开放权重即将发布。

    引用Leonardo.Ai@LeonardoAi

    MiniMax H3 is on Leonardo. Most video models give you a clip. H3 gives you the clip and the soundtrack — with your character and voice locked in from refs. Expect: - Commercial-grade quality across ads, e-commerce, gaming & UI - Best value in its class - One lightweight model, fully multimodal Built for one-shot finished content: brand teasers, product videos, fashion films, talking characters

7月31日周五
  1. MiniMax (official)53

    MiniMax 视频生成模型 H3 已上线 Magnific,支持最多 9 张图控制角色与风格、3 段视频控制运动与镜头,输出 2K、时长 5-15 秒。H3 权重即将开放,社区可微调并构建全新创意工作流,推动开放视频生成。

    引用Magnific@magnific

    MiniMax H3 by @Hailuo_AI just landed on Magnific Add characters, motion, and the beat. The model handles the rest → Up to 9 images for character and style → 3 videos for motion and camera control → 2K output, 5 to 15 seconds Try it now on Magnific

  2. MiniMax (official)47

    非常感谢 @runware 从第一天起就与我们同行 🙌 今天为开发者提供更强能力,开放权重即将面向社区推出。 #MiniMaxH3

    引用Runware@runware

    MiniMax H3 is now on Runware 🎬 - New open-weights flagship video model from MiniMax - Native synced audio, generated in the same pass as the video - Multi-reference conditioning keeps subjects and scene identity consistent across shots - Extend existing clips or audio segments

  3. IT之家·人工智能59

    MiniMax H3 通用多模态视频模型将于 8 月 3 日开源,最高支持 15s 2K 分辨率

    稀宇科技宣布推出 MiniMax H3 通用多模态视频模型,将于北京时间 8 月 3 日 0 点在魔搭社区正式开源。该模型支持对文本、图像、视频、声音的统一理解,可输出原生双声道音视频,最高支持 15s 2K 分辨率。官方称其默认提供 2K 分辨率,每秒价格不到主流模型的 1/3,768P 分辨率下为主流 720P 的 1/2。

  4. MiniMax:Blog78

    MiniMax H3 发布:开源全能多模态生成模型,支持 2K 原生立体声视频

    MiniMax 正式推出全能多模态生成模型 H3,可联合理解文本、图像、视频和音频,生成最高 2K 分辨率、15 秒时长且带原生立体声的视频。H3 在指令跟随、文字与品牌呈现、V2V 动作迁移上表现突出,2K 下每秒价格低于主流模型三分之一,768p 下低于主流 720p 价格一半。官方计划近日开源模型权重,以支持开源社区并加速硬件兼容。

    推荐理由:MiniMax H3 把全模态生成打到了 2K 分辨率且价格不到主流三分之一,还计划开源权重,这对闭源视频模型是实打实的压力,开发者可以重点关注。