Jonathan Pedoeem

121 posts

What we can learn from Anthropic's System prompt updates

Claude's system prompts evolved through dozens of versions in 2024-2025. Each change reveals concrete lessons about production prompt engineering. Find all their system prompts here https://docs.claude.com/en/release-notes/system-prompts Let's read them and see what we can learn! This post extracts the patterns

Codex vs Claude Code

Anthropic recently tightened Claude Code usage limits without prior notice, leaving Max tier users hitting unexpected caps. This sudden shift highlights just how rapidly the AI coding assistant landscape is evolving, and why choosing the right tool matters more than ever. Your team's development velocity, code quality, and

Humans Last Exam LLM: A Comprehensive Evaluation

Top AI models that ace traditional benchmarks are stumbling badly on a new test called "Humanity's Last Exam," scoring a mere 25%. This dramatic performance gap reveals just how far we still are from achieving expert-level artificial intelligence, despite the impressive capabilities of today's

Code World Model: First Reactions to Meta's Release

Imagine an AI that doesn't just autocomplete your code but actually understands what happens when code runs. That's the revolutionary promise of Code World Models (CWMs) — a new breed of AI that bridges the gap between pattern-matching and true computational reasoning. While traditional code AI learned

How to Download a Claude Chat Session

Your conversations with Claude often contain valuable work, from research insights to code snippets to creative brainstorming. Being able to save these chats enables proper archiving, sharing with colleagues, and meeting compliance requirements. Whether you need to cite Claude's reasoning in academic papers, preserve conversations for legal records,

GPT-4o-Mini-TTS: Steerable, Low-Cost Speech via Simple APIs

What if your app could sound like a sympathetic agent or an enthusiastic tour guide, just by prompting? GPT-4o-Mini-TTS brings steerable, natural, low-cost speech to apps via simple APIs, transforming how developers integrate voice into their applications. Announced by OpenAI in March 2025, this advanced text-to-speech model builds on the

AI doesn't kill prod. You do.

I had a conversation with a customer yesterday about how we use AI coding tools. We treat AI tools like they're special, and something to be scared of. Guardrails! Enterprise teams won't try the best coding tools because they are scared of what might happen. AI

Building Agents with Claude Code's SDK

Run Claude Code in headless mode. Use it to build agents that can grep, edit files, and run tests. The Claude Code SDK exposes the same agentic harness that powers Claude Code—Anthropic's AI coding assistant that runs in your terminal. This SDK transforms how developers build AI

GPT-5-Codex: First Reactions

"An AI that can code for 7 hours straight" — VentureBeat's headline on gpt-5-codex. OpenAI dropped GPT-5-Codex in mid-September 2025. Early adopters report game-changing productivity gains alongside some notable quirks. Here's what the community is discovering about OpenAI's latest agentic coding powerhouse, how

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