Breaking OpenAI ships GPT-5.2 with native audio and 2M-token context window Funding Anthropic valuation touches $420B after secondary round Policy EU AI Act Phase 2 enforcement window opens for foundation models Research MIT team closes the gap between process reward and outcome reward models Chips NVIDIA Blackwell Ultra enters general availability on AWS Breaking OpenAI ships GPT-5.2 with native audio and 2M-token context window Funding Anthropic valuation touches $420B after secondary round Policy EU AI Act Phase 2 enforcement window opens for foundation models Research MIT team closes the gap between process reward and outcome reward models Chips NVIDIA Blackwell Ultra enters general availability on AWS