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AI 资讯 HackerNews

Show HN: Dozenal – A Game of Spatial Arithmetic

Hello HN! We're Rory and Chris, and we've made a game called Dozenal[0], a grid-based number puzzle game where the objective is to use all the tiles on the board to create totals of 12 (hence the name). We think the mechanic is quite unique, although keen to hear if people know of similar games! You essentially drag tiles across the board, and the distance between two numbers decides the arithmetic operation when they connect to each other: zero spaces is addition, one space is subtraction, two

sarreph 2026-07-27 18:44 2 原文
AI 资讯 TechCrunch

Europe got its own TBPN-style live show, and everyone’s angling for a guest spot

On Monday, the network announced a $1.6 million seed round from top players in the media ecosystem, including Powerhouse Capital, Axel Springer SE (which owns Business Insider and Politico), the popular media publication LadBible, and angel investors from OpenAI and DeepMind. With this fresh capital, the network is announcing its largest expansion yet.

Dominic-Madori Davis 2026-07-27 18:00 9 原文
AI 资讯 Dev.to

Your agent's token bill is 5x too high — and it's not the model price

Most teams blame their model provider when the inference bill spikes. They're looking at the wrong line item. The real leak is architecture — and it's the difference between a token bill that scales with value and one that scales with chaos. Here's what we see shipping agentic systems in production. The hidden multiplier: agent loops A "2-minute task" is never one call. An agent fires 30–60 tool calls per run, and most frameworks stuff the entire conversation history into every prompt. So a job you'd estimate at ~4K tokens becomes 40 calls × 8K context = 320K tokens — billed at frontier rates. Frontier pricing per call looks cheap. Multiplied by agent-loop iterations, it quietly becomes the largest line in your cloud bill. The 80/20 of inference Not every call needs a frontier model. ~80% of agent traffic is routing, extraction, formatting, classification, summarization. Trivial. Leading efficient models — including top China models — handle these at near-parity. ~20% is genuine reasoning, open-ended generation, ambiguous planning. That's where frontier earns its price. Route the 80% to efficient models and reserve frontier for the 20%. Same output quality. A fraction of the bill. A unified gateway beats a drawer of API keys The trap most teams hit: they wire 4 providers with 4 clients, then let a naïve router "roam" between them. On failover it loses cache affinity, re-embeds context, and your 1.5x cost target drifts back toward ~1x — or worse. A single OpenAI-compatible endpoint across OpenAI + Gemini + leading China models fixes this: One client, one code path. Provider pinning holds cache locality; it only fails over on hard error, not price drift. Your application code never changes when you swap a model. In SEA, "PDPA-aligned" is the baseline, not a premium For Malaysia and SEA teams, inference isn't just a cost question — it's a compliance one. PDPA requires 72-hour breach notification and a designated DPO. In-region data residency (SG-hosted) is now the defa

TokenLat 2026-07-27 17:45 10 原文
AI 资讯 Dev.to

What happens after you submit to a CFP (from the other side)

As part of the Förderverein AWS Community DACH e.V. I joined the selection committee for talks again this year. Third year in a row (I wrote about the previous editions and my broader community journey in my 2025 year in review ). The process is always inspiring, fair, and full of incredibly well-crafted abstracts. How the evaluation works Sessionize uses a Comparison Evaluation Mode based on the Elo rating system (from chess). Three sessions are shown at the same time and you rank them relative to each other. You don't assign absolute scores; you just decide "this one is better than that one." Each comparison produces three "games" (A vs B, B vs C, C vs A) and the algorithm adjusts ratings accordingly. After a first pass through all sessions, the system gets smarter about which triplets to show next, targeting sessions with similar ratings for more precise differentiation. It's fast, focused and surprisingly fair, because you only ever think about the three in front of you, not all others. You can also use "Strong opinion" options: Top (this is excellent), Doesn't fit (wrong conference), or Ignore (conflict of interest, can't judge). These signal the algorithm without distorting the ranking. In my case: I marked 2 as "Doesn't fit" (not because they lacked quality; they were actually interesting but too inspirational for a technical community day, better suited for a different audience). The other 2 ignored were my own submissions : Vibecoding in Between Meetings and Serverless vs Kubernetes - The Final Showdown . The full process The behind-the-scenes post by Philipp Garbe explains the whole pipeline in detail. In short: Round 1 (Screening): Board members filter out spam, incomplete proposals, marketing pitches, non-AWS topics, and speakers outside EMEA. Round 2 (Content Evaluation): Every association member can participate. This is the Elo-based comparison round. Members must disclose personal connections and skip sessions they can't rate objectively. Round 3 (Fin

Davide de Paolis 2026-07-27 17:44 11 原文
AI 资讯 Dev.to

I built an interactive site about my journey — not a portfolio

Honestly I almost didn't build this because everyone said "just make a normal portfolio, resume + project cards, keep it simple." But that felt fake to me. Like I'd be hiding the actual messy part of learning to code and just showing the highlight reel. So instead I built whoisrehan.vercel.app — it's less of a portfolio and more of me walking you through everything, starting from the first time I opened a code editor with literally no idea what I was doing, all the way to now. Including the stuff that usually gets left out — the projects that didn't work, the times I wanted to quit, the small wins that felt huge at the time. It's not polished. It's just honest. If you've ever started something with zero plan and just pure curiosity, I think you'll get it. whoisrehan.vercel.app Curious which part actually hits you if you check it out : BuildInPublic #WebDevelopment #DeveloperJourney

Rana Rehan 2026-07-27 17:39 10 原文