LangGraph vs CrewAI vs Pydantic-AI vs OpenAI Agents SDK compared on control, state, memory, streaming and production ops. A 2026 decision guide, not a benchmark.
MCP server frameworks compared: FastMCP vs the official Model Context Protocol SDKs vs alternatives - transports, auth, ergonomics, deployment. 2026 decision guide.
A deep dive into 2026 AI agent benchmarks: SWE-bench Verified, GAIA, and tau-bench — what they measure, how they leak, and how to read agent leaderboards honestly.
An analysis of PTC NEXT 2026: Orbit, Jetstream, 12 AI agents, and whether 'Intelligent PLM' is a genuine architecture shift or a rebrand of the digital thread.
LangGraph v1.2 DeltaChannel slashes checkpoint overhead on long agent threads — the pattern, the wire-format change, and when to migrate from full snapshots.