I Compared the Best LLMs in May 2026: What Actually Matters in Production

A practical May 2026 breakdown of the best LLMs for coding, agents, multimodal work, retrieval, and production cost, based on the trade-offs that actually show up after launch. I spent time re-checking the current LLM stack for the same reason most teams do, the leaderboard keeps moving, but production choices still feel harder than they should. My main takeaway is that model choice still matters, but it explains less of the final outcome than it did a year ago.