The three current flagship models are OpenAI's GPT-6 Astra (released 2026-09-03), Anthropic's Claude Opus 5.5 (2026-09-22), and Google DeepMind's Gemini 4 Argon (generally available 2026-10-13). No developer has published an exact date for when staff first used these models in production. Therefore, this estimate treats the gap as a hidden variable, bounding it using knowledge cutoffs, internal leaks, and safety timelines. The only fully documented baseline is a 106-day gap for Anthropic's earli

The median estimate of 78 days reflects a bifurcated landscape for 2027–2028 flagship models, balancing rapid commercial release cadences against the growing friction of safety gating and staged rollouts. Because labs routinely narrate internal dogfooding but rarely date it, this metric is fundamentally a latent truth. The 78-day median anticipates a mix of minor flagship updates that deploy in roughly 38 to 55 days, and major generational leaps that require 115 to 155 days to clear rigorous cyb

The median time for a second organization to match a new frontier capability threshold is projected to hover around 62 days (roughly two months) during the 2027–2029 window, with a 10th percentile of 25 days, a 25th percentile of 38 days, a 75th percentile of 115 days, and a 90th percentile of 175 days. This reflects an intensely competitive landscape dominated by three to five well-funded labs releasing models on tight one-to-three-month cycles. While the gap between closed and open-weights mod