GPT-5.5: OpenAI's First Retrained Base Since GPT-4.5
April 24, 2026
OpenAI released GPT-5.5 on April 23, 2026 — the first fully retrained base since GPT-4.5. Benchmarks, $5/$30 API pricing, 1M context, and Opus 4.7 compared.
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OpenAI Acquires Hiro Finance: The Vertical AI Shift Begins
April 15, 2026
OpenAI acquires Hiro Finance (April 2026): the vertical AI shift begins. Why consumer personal-finance AI needs different infra from general-purpose chatbots.
OpenAI's $122B Round: IPO, Superapp, and AGI (2026)
April 3, 2026
OpenAI closed a record $122B round at an $852B valuation. What Amazon's AGI clause, the superapp, and an imminent IPO mean for developers and AI.
AI Study Tools 2026: The Ultimate Guide for Smarter Learning
March 25, 2026
AI study tools 2026: ChatGPT, Gemini, Perplexity, Claude, Notion AI, Wolfram Alpha, Otter.ai, NotebookLM. Which tool wins for research, notes, and review.
The Ethics of AI Homework Help: Fair Use or Academic Misconduct?
February 28, 2026
AI homework help ethics in 2026: Harvard, Stanford, and MIT disclosure rules, detector reliability, and where fair use ends and academic misconduct begins.
Perplexity vs ChatGPT: A Deep Dive into AI Research Assistants
February 9, 2026
Perplexity vs ChatGPT for research: cited sources vs. synthesis quality, pricing tiers, Pro modes, and which tool actually saves time on real research tasks.
AI Prompting Cheat Sheet: Master ChatGPT, Claude, Gemini, Perplexity & Grok in 2025
December 25, 2025
AI prompting cheatsheet 2026 — ChatGPT, Claude, Gemini, Perplexity, Grok side by side. Best-for strengths, failure modes, and ready-to-paste prompt templates.