Node.js Tech Stack

Jun 27, 2026 · Artificial Intelligence

Why GPT-5.6 Beats Claude Fable 5 in TerminalBench Yet Remains Unavailable

OpenAI's newly unveiled GPT-5.6 achieves a 91.9% TerminalBench 2.1 score—outperforming Claude Fable 5—but is limited to a small trusted‑partner preview, with tiered models, new Ultra mode, pricing details, and extensive safety safeguards that shape its immediate usability.