Leaked OpenAI Codex Names Spark Tiering Speculation Mirroring Anthropic

Speculation is swirling around OpenAI's leaked codenames astra, sol, terra, and luna, with users suggesting they map to Anthropic-style tiers (Opus/Sonnet/Haiku equivalents) rather than being standalone model names.

2026-09-12 ~ 2026-09-12 · 2 related posts

• Leaked Codenames Suggest OpenAI Model Tiers Map to Claude's Opus/Sonnet/Haiku — haider1 · 2026-09-12
• Is OpenAI's rumored astra/sol/terra/luna lineup a tier system? Users bet luna beats Haiku — JeremyNguyenPhD · 2026-09-12