GPT-5.5 Reportedly Degrades Due to Silent Token Truncation

Developers found that GPT-5.5 silently truncates reasoning tokens at specific thresholds like 516, causing significant degradation in complex coding tasks and sparking community outrage.

2026-07-05 ~ 2026-07-05 · 3 related posts

• GPT-5.5 Reportedly Dumber Due to Silent Truncation — bdsqlsz · 2026-07-05
• GPT-5.5 Choked by '516' Token Limit: 80% of Complex Reasoning Silently Truncated — 新智元 · 2026-07-05
• GPT-5.5 Codex Shows Anomalous Clustering in Reasoning Tokens — petrusenko_max · 2026-07-05