How are you, hacker? How are you, hacker? 🪐 What’s happening in tech today, February 25, 2026? The
           HackerNoon Newsletter
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          On this day,
          
           we present you with these top quality stories. 
          
            From 
        Optimise LLM usage costs with Semantic Cache
       to 
        Researchers Develop a Real-Time 3D Mapping System That Helps Robots Understand Natural Language,
       let’s dive right in. HackerNoon Newsletter homepage On this day, Optimise LLM usage costs with Semantic Cache Optimise LLM usage costs with Semantic Cache Researchers Develop a Real-Time 3D Mapping System That Helps Robots Understand Natural Language Researchers Develop a Real-Time 3D Mapping System That Helps Robots Understand Natural Language Beyond the Bots: What Real Writing Looks Like in the Age of AI Beyond the Bots: What Real Writing Looks Like in the Age of AI By @hackernoon-courses [ 4 Min read ] Learn how to write content that stands out in the age of AI, crafting a voice and style no model or copycat can replicate. Read More. @hackernoon-courses Read More. Codex vs Factory vs Cursor: Does the Harness Really Matter for MVP Prototyping? Codex vs Factory vs Cursor: Does the Harness Really Matter for MVP Prototyping? By @navigatingnoise [ 5 Min read ] Opus 4.6 locks horns with GPT 5.3 Codex in a harness comparison to see if it makes any difference where you use the model. Conclusion? Its not what you think. Read More. @navigatingnoise Read More. Researchers Develop a Real-Time 3D Mapping System That Helps Robots Understand Natural Language Researchers Develop a Real-Time 3D Mapping System That Helps Robots Understand Natural Language By @roomscale [ 3 Min read ] A new system fuses language models with 3D Gaussian Splatting to help robots build real-time, semantic maps 3.5x faster than existing methods. Read More. @roomscale Read More. The Alpha Engineers Endgame - Becoming a Nobody The Alpha Engineers Endgame - Becoming a Nobody By @edwinliavaa [ 11 Min read ] Why real engineers are rejecting titles, visibility, and wealth chasing—and choosing sovereignty, privacy, and freedom instead. Read More. @edwinliavaa Read More. Optimise LLM usage costs with Semantic Cache Optimise LLM usage costs with Semantic Cache By @birukum [ 11 Min read ] Agentic AI workflows can create a financial black hole. Learn how semantic caching uses vector similarity to cut your LLM token burn by 24%. Read More. @birukum Read More. 🧑‍💻 What happened in your world this week? It's been said that
          writing can help consolidate technical knowledge,
          establish credibility,
           and contribute to emerging community standards.
          Feeling stuck? We got you covered ⬇️⬇️⬇️ writing can help consolidate technical knowledge establish credibility and contribute to emerging community standards ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it.See you on Planet Internet! With love, 
 The HackerNoon Team ✌️

The HackerNoon Newsletter: Do AI Agents Dream of Electric Langoustines? (2/24/2026)

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The HackerNoon Newsletter: Optimise LLM usage costs with Semantic Cache (2/25/2026)

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