Report: GPT-6 Astra Said to Use Loop Transformer Architecture

SemiAnalysis claims OpenAI's next model GPT-6 (codename Astra) will use a loop transformer architecture, gaining depth by passing through the same layers multiple times rather than scaling parameters; the report is unconfirmed.

2026-09-15 ~ 2026-09-16 · 3 related posts

• GPT-6 Astra reportedly uses loop transformers — more depth, not more parameters — zephyr_z9 · 2026-09-15
• SemiAnalysis claims GPT-6 'Astra' will use Loop Transformers architecture — 141_1337 · 2026-09-15

1 near-duplicate retellings: pranavmarla