Software engineer, tech blogger, AI-ambassador, developer conversations master. Belarusian originally 🤍❤️🤍 Fond of @Junie_AI
Poland
Joined April 2023
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Lex Kartynnik retweeted
Junie runs 4-bit models:
• Mac: MLX 4-bit
• Windows preview: GGUF Q4_K_M (RTX Ampere+, 24GB+ VRAM)
Want to tinker? BF16, MLX and GGUF weights are public, with setup instructions:
huggingface.co/collections/J…
Lex Kartynnik retweeted
I’m significantly older than you. I started coding in the late 60s. My current strategy is to not read any of the code written by my agents. That’s the only way I can take advantage of their productivity. What I do instead is to surround the agents with extreme constraints. Unit tests, gherkin tests, QA procedures, quality metrics, mutation testing, test coverage, and a plethora of others. In the end, I have very high confidence in the code they produce because they’ve had to run the gauntlet of all of my constraints and tests.
Lex Kartynnik retweeted
Claude in Excel is now available on Pro plans.
Claude now accepts multiple files via drag and drop, avoids overwriting your existing cells, and handles longer sessions with auto compaction.
Get started: claude.com/claude-in-excel
Lex Kartynnik retweeted
«Цёмны Лёс» аднаўляе працу! І гэта, мабыць, самы гарачы і насычаны выпуск🔥
👉 Глядзім і слухаем тут: youtu.be/_2k5HiDKbLU
Буду бясконца ўдзячны за вашыя рэтвіты і лайкі! Дапамажыце распаўсюдзіць беларускае слова, каб нас пачула як мага больш людзей 🔄❤️
Lex Kartynnik retweeted
The first preview of "Group chats" in the ChatGPT web app
- the top navigation bar now has a "Start a group chat" button which allows you to generate a link and share it with others to join this group chat shown in the new sidebar section "Group chats"
- anyone can join your group chat with this link, and they'll be able to see the previous messages in this group chat
- group chats custom instructions are separate from custom instructions for your personal ChatGPT, and you can let ChatGPT respond automatically or only when mentioned by someone in the group chat, but your personal ChatGPT memory is never used in group chats
- the web app assets also mention options to add reactions, report or reply to a specific message, an indicator when someone is typing, file uploads, image creation and web search
Lex Kartynnik retweeted
I made a small Google AI Studio app that lets you create an AI Street View from any uploaded image for free
🔗 below
Lex Kartynnik retweeted
1/n I’m thrilled to share that our @OpenAI reasoning system scored high enough to achieve gold 🥇🥇 in one of the world’s top programming competitions - the 2025 International Olympiad in Informatics (IOI) - placing first among AI participants! 👨💻👨💻
Lex Kartynnik retweeted
We made a Mac app that lets you run a bunch of Claude Codes in parallel.
Introducing Conductor!
Lex Kartynnik retweeted
This should be illegal.
Do I cancel 4 days early just for the bit? @Adobe This is fucking awesome, I love the way you guys operate, because like, the audacity is insane.
Lex Kartynnik retweeted
Introducing Agentplace v0.1
This is vibe coding for agents and AI-native applications.
The model is the backend — it controls logic, UI, and flow.
Features:
• Dynamic UI
• Built-in search
• Model Context Protocol (MCP)
Not just agents — create full chat interfaces and agentic websites too.
Same engine, same power.
Agents are real virtual machines — deployed in seconds, live on the internet.
Reimagining the website → Agentic websites
The model powers the backend, controls UI, and runs logic in real time.
Try it → agentplace.io
cc @karpathy
cc @levan
Lex Kartynnik retweeted
Jeff Bezos is rich for one simple reason:
He's BALD and has saved $238.4 billion by never needing to pay for a haircut
Study the rich if you want to be wealthy
Lex Kartynnik retweeted
One of our research interests in Nebius is agentic software engineering. Because of that, we have reviewed LOTS of agent evals on software engineering tasks, and there were issues about these evals that made us unhappy.
Today we are making a step towards fixing some of them ⬇️
Lex Kartynnik retweeted
trackers v2.0.0 is out
combo object detectors from top model libraries with multi-object tracker of your choice
for now we support SORT and DeepSORT; more trackers coming soon
link: github.com/roboflow/trackers
