Recap · 2026-05

AI leaderboard changes May 2026

As of May 27, 2026, 8 confirmed crown changes are recorded for May 2026.

Crowns

Confirmed crown changes

  • May 27, 2026. Reasoning: GLM 5.1 takes the crown. Crown change confirmed by two consecutive snapshots or two independent primary sources. GLM 5.1 · Reasoning
  • May 19, 2026. Vision: GPT-5.5 takes the crown. Crown change confirmed by two consecutive snapshots or two independent primary sources. GPT-5.5 · Vision
  • May 19, 2026. Coding › Web dev: Claude Opus 4.7 takes the crown. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.7 · Coding › Web dev
  • May 18, 2026. General LLM: Claude Opus 4.6 and Claude Opus 4.7 and Muse Spark are co-SOTA. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.6Claude Opus 4.7Muse Spark · General LLM
  • May 14, 2026. Long context: Claude Opus 4.6 and Claude Opus 4.7 are co-SOTA. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.6Claude Opus 4.7 · Long context
  • May 12, 2026. Reasoning: Claude Opus 4.6 and Claude Opus 4.7 are co-SOTA. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.6Claude Opus 4.7 · Reasoning
  • May 7, 2026. General LLM: Claude Opus 4.6 and Gemini 3.1 Pro Preview and Claude Opus 4.7 and Muse Spark are co-SOTA. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.6Gemini 3.1 Pro PreviewClaude Opus 4.7Muse Spark · General LLM
  • May 6, 2026. Reasoning: Claude Opus 4.6 takes the crown. Crown change confirmed by two consecutive snapshots or two independent primary sources. Claude Opus 4.6 · Reasoning
Top 3

Models that entered the top 3

Benchmarks

Benchmarks added or saturated

Benchmark additions for this month are still empty.