#benchmark

Across 7 July 2026 reports, Claude Fable 5 leads SWE-Bench Pro at 80.3% versus Grok 4.5, GPT-5.6 Sol, and Sonnet 5. Where each actually wins.

Eight published June 2026 benchmarks compared: Claude Opus 4.8, GPT-5.5, Fable 5, GLM-5.2, Gemini 3.1 Pro. The 22-point SWE-bench spread that nobody tables.

Across 8 June 2026 studies of LLM-as-Judge tools and methods, identical-prompt runs disagree like coin flips and brand bias skews 3 commercial judges.

Across 10 May 2026 benchmarks, frontier AI agents averaged below 60 percent on production tasks. Codex CLI hit 82.7 percent. ITBench fell under 50.

An aggregation of 8 May 2026 reports on the terminal coding CLI ecosystem: a toolkit benchmark of 80/100, a 10x model price spread, a 1/160th self-host cost claim.