OpenAI completes 'Bel' pre-training, potentially serving as the foundation for GPT-6 and Astra

ChainCatcher report, according to X user synthwavedd, OpenAI has recently completed its next-stage pre-training, internally codenamed "Bel," succeeding the prior model "Doug." The model exceeds 10 trillion parameters in scale, comparable to GPT-4.5, and is expected, after further reinforcement learning, to serve as the foundational model for Astra and GPT-6, potentially forming the base for post-GPT-6 models approaching the threshold of AGI. The report indicates this development has raised concerns at Anthropic. OpenAI believes Anthropic currently lacks an effective response to the public release of Astra; insiders confirm this assessment is largely accurate, primarily due to computational constraints. Anthropic is preparing for OpenAI to maintain dominance for the remainder of this year but expects to regain leadership by early next year.