Jan 22, 2026

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Inside GPT-5 for Work: How Businesses Use GPT-5 (openai.com) A data-driven report on how workers across industries use ChatGPT—covering adoption trends, top tasks, departmental patterns, and the future of AI at work. openai

Inside Praktika's conversational approach to language learning (openai.com) How Praktika uses GPT-4.1 and GPT-5.2 to build adaptive AI tutors that personalize lessons, track progress, and help learners achieve real-world language fluency openai

Scaling PostgreSQL to power 800 million ChatGPT users (openai.com) An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation. openai

Without benchmarking LLMs, you're likely overpaying (karllorey.com) hn

Claude's new constitution (anthropic.com) hn

Three types of LLM workloads and how to serve them (modal.com) hn

Letting Claude play text adventures (borretti.me) hn

Show HN: Retain – A unified knowledge base for all your AI coding conversations (github.com) hn