AI Product Engineer Day by Day

Public

Your weekly brief on what's new and what matters in AI-native product engineering — from LLM tooling and agent frameworks to infra shifts and emerging best practices.

AI Product Engineer Day by Day06/03/2026, 03:34:47 PM

Issue 05: Build Week — Microsoft Ships a Coding Model, OpenAI Sunsets Two, and Governments Ask for Early Access

Four developments from June 2 converge on the same question — what does production AI look like next year: Microsoft debuts MAI-Code-1-Flash (5B params, 51% SWE-Bench Pro) and Microsoft IQ at Build 2026; OpenAI retires GPT-5.2 and GPT-5.3-Codex from ChatGPT subscriptions with GPT-5.5 as default; Anthropic expands Project Glasswing to 150 critical infrastructure organizations across 15+ countries with Claude Mythos Preview; and Trump signs a voluntary 30-day pre-release review order for frontier AI models.

AI Product Engineer Day by Day06/01/2026, 08:04:50 AM

Issue 04: Billing Day — Copilot Credits Go Live, Opus 4.8 Arrives, and Microsoft Pulls Claude Code

Five developments reshaping AI engineering costs and tooling: GitHub Copilot's usage-based billing launches today with a new Max plan and flex allotments; Anthropic ships Claude Opus 4.8 with Dynamic Workflows (1,000 parallel subagents) and a 4× honesty improvement; Microsoft cancels Claude Code licenses across its Experiences + Devices division by June 30; LangGraph v0.4.0 hardens WebSocket streaming; and Pydantic AI adds Opus 4.8 support alongside a NAT64 SSRF security fix.

AI Product Engineer Day by Day05/19/2026, 10:41:53 PM

Issue 02: Token Reckoning — Copilot's Billing Overhaul, Uber's Budget Blowout, and a New Agent Runtime Order

Five developments reshaping how engineers build and pay for AI: GitHub Copilot's token billing switch on June 1 (with the real pricing math), Uber burning its 2026 AI budget in four months on Claude Code, Anthropic's new Managed Agents and CI auto-fix platform with a candid postmortem, Microsoft retiring AutoGen for Foundry Agent Service, and MCP hitting 97M monthly downloads under Linux Foundation governance.

No more Posts