G'day! Five releases from the last day or so, why each one matters, and how to try it. Tencent has released Hy4, a new AI model that can now see images and use a computer, and Google has given its Antigravity agent a chemistry toolkit that proposes new drug ideas in about an hour. There's also a free desktop app that turns a website description into a working site using the AI coding agent you already pay for, a retro pixel-art space horror adventure, and a new Safari setting that turns bright websites dark. About a five-minute read.

Image: Tencent Hy (benchmark chart from the Hy4 release page)

Tencent, the Chinese tech giant behind WeChat, has released Hy4, the newest version of its Hunyuan AI model. For the first time it can see: it reads photos and complicated charts, and it can operate a computer, both by typing commands and by clicking around ordinary apps. Tencent says it trained it on specialist software such as Blender (3D design) and CAD. It tested Hy4 with 213 finance professionals on 579 real financial tasks, where Tencent says it ranked first among "open-weight" models (ones whose inner workings are released for anyone to download). In Tencent's own tests, after upgrades to how it searches for information, its rate of made-up answers fell from about 16% (in the preview version) to about 5%. Hy4 is already inside Tencent's own apps, including its WorkBuddy work assistant and Yuanbao chatbot.

Why it matters: Chinese AI labs keep releasing capable models at low prices, and this is a big step up for Tencent. If Tencent releases the model for download as it promises, anyone will be able to run and build on it. Tencent admits it still trails the best closed models, and all the test results are its own.

TRY IT → developers can use it now through OpenRouter or Tencent Cloud. Tencent's listed price is US$0.834 per million "tokens" (small chunks of text) going in and US$2.501 per million coming out, about A$1.20 and A$3.59. OpenRouter is currently showing 50% off (about A$0.60 and A$1.79) and doesn't say for how long. The downloadable version isn't out yet: Tencent says it "plans to" release it. Tencent Hy: Introducing Hy4 · OpenRouter: Tencent Hy4

Image: Google DeepMind (screenshot)

Google Antigravity is Google's app for working with AI agents. Google DeepMind has now given it Cheminformatics Skills, a chemistry toolkit that lets the agent work like a drug-discovery assistant. In Google's walkthrough, using real lung cancer drugs, the agent searched the scientific literature and pulled out thousands of compounds within minutes, weeded out irrelevant ones like solvents, and built models to predict how strong each would be. It then proposed new, more rigid versions of the drug molecules, with suggested ways to make them, all in about an hour. (Floppy molecules tend to bind more weakly, and tying them into a ring can make a drug stronger: it's how the newer lung cancer drug lorlatinib improved on crizotinib.) The chemistry calculations are done by RDKit, a long-standing free chemistry toolkit, rather than the AI guessing. Google says this kind of work used to take several days.

Why it matters: agents are moving beyond writing code into real lab science, with the AI planning the work and proven tools doing the maths. Google stresses that the designs are ideas to test, not finished drugs: each still has to be made and checked in a lab.

TRY IT → download the Antigravity app (there's a free plan with basic weekly limits) and install its Science plugin. More usage comes with a paid Google AI Pro or Ultra subscription. Google is also offering 10,000 scientists its top usage tier free for six months, with applications open now (subject to eligibility and selection). Google DeepMind: Agentic cheminformatics with Google Antigravity · Google Antigravity pricing

Image: TasteCode

If you use an AI coding agent such as OpenAI's Codex or Anthropic's Claude Code, TasteCode puts it in one tidy desktop app. Its standout feature is Design Mode: describe the website you want, and the agent works through eight steps, from understanding your brief and picking a brand look to building the page, then checks its own design and opens a live preview beside the chat. You can view the site at desktop, tablet and phone sizes, and accept or reject each change before it sticks. Version 0.5.0, out yesterday morning Australian time, adds Cursor as a fourth agent alongside Codex, Claude Code and Grok. It also lets one agent hand jobs to helper agents from other providers, open two chats side by side, and send finished work to GitHub without leaving the app.

Why it matters: it's a free way to "vibe code" a website with whichever AI agent you already pay for, with a human check built in. Your projects and history stay on your own computer.

TRY IT → free and open source (Apache 2.0 licence) for Mac (Apple silicon only) and Windows 10 or 11. You need your own Codex, Claude Code, Grok or Cursor plan, and usage counts against it. It's an early beta, and the website warns that Windows may show a security warning because the installer isn't signed. TasteCode · GitHub: TasteCode 0.5.0 release notes

Image: GrahfMetal / Komi Games (Steam)

You're the only survivor of an alien infestation on a spaceship, and you need to find a cure and a way home. Infested DX is a first-person point-and-click adventure in detailed pixel art, picking up where the classic adventure games of the 1980s and '90s left off. You examine everything, collect and combine items, and solve puzzles while avoiding zombies, mutants, robots and unseen alien germs. One wrong move is all it takes to die, but you never lose your progress, so the game encourages you to experiment. It's from developer GrahfMetal and publisher Komi Games, and it arrived a week late after waiting on a final review.

Why it matters: it's a cheap, bite-sized throwback for anyone who grew up on old-school adventure games, and it came out in the early hours of yesterday, Australian time.

TRY IT → out now on PC (Steam) for A$11.32, 20% off A$14.15 until 17 November. Windows only, English only, and the developer says it works on Steam Deck. Expect some cartoonish sci-fi horror. Steam: Infested DX

Image: WebKit (Apple)

Lots of us use dark mode on our phones and computers, but plenty of websites still blast you with a bright white page. Apple says almost 40% of web page visits come from people in dark mode, yet only 10% of pages support it. Its fix is Adaptive Dark Mode in Safari: it quickly checks whether a page is mostly light, then darkens the background and lightens the text while keeping colours recognisable and the text easy to read. It leaves most photos alone, and flips simple black-and-white logos so they don't disappear. Sites that already have a dark mode aren't touched, and websites can't tell you've switched it on, which protects your privacy.

Why it matters: it's easier on the eyes at night and makes the web feel consistent. It may also nudge website owners to add proper dark modes of their own.

TRY IT → free, in Safari 27.3 beta, which came with Apple's iOS, iPadOS and macOS 27.3 test versions yesterday morning Australian time. Set your device to dark mode, open a bright website, and tap "Try" when Safari offers a preview. Beta software can be buggy, so most people should wait for the finished update; Apple hasn't said when that will arrive. WebKit: Introducing Adaptive Dark Mode

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