SITUATION EXPLAINED: GPT-6 Astra is out, and OpenAI is calling it the "AGI era" • Greg Brockman ended the press briefing with "Welcome to the AGI era," and said he personally believes OpenAI has reached AGI • He said the term is no longer tied to a contractual trigger and is now a mission or spiritual concept. • 98.6% on ARC-AGI-3, where Sol got 7.8% and the average human gets 48% • 97.6% on Frontier Math Tier 4 against Fable 5.1's 87.8%, and 100% on ExploitBench where the previous best was…