Product leader · AI builder · Bengaluru

I lead telecom product teams and build AI tools in public.

Twenty years across business analysis, solution design and product management. Here I write practical guides on LLMs and agents, and ship free tools you can use today.

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Latest AI in 2025: A Complete Month-by-Month Timeline

Portrait of Rajesh Praharaj
Rajesh PraharajProduct Leader & AI Builder

Signal over noiseGuides · Tools · Benchmarks

20 yrs in telecom product and delivery 62 technical guides in 3 series 45 free AI and developer tools 42 frontier models benchmarked

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AI in 2025: A Complete Month-by-Month Timeline

From DeepSeek's January disruption to GPT-5 and Claude 4 - every major AI model release and breakthrough that defined 2025.

Updated Nov 1, 2026

  1. Essay · Dec 28, 2025 Why Your AI Agent Gets Dumber Over Time (And How to Fix It)
  2. Essay · Dec 26, 2025 Agentic Browsers: The Complete Guide to AI-Powered Browsing
  3. Guide · MCP Library Introduction to MCP: The Universal Connector for AI Assistants
  4. Guide · AI Learning Series How to Talk to AI: Prompt Engineering Fundamentals

Toolbox

Dev tools run entirely in your browser. AI tools are free: 3 a day without an account, 10 with one.

All 45 tools →

LLM Benchmark Tracker

Gemini 4 Carbon leads GPQA Diamond at 96.8%.

42 models across 11 benchmarks. Last updated Nov 1, 2026.

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