OpenAI has cancelled the planned release of its GPT-6.1-Astra model following internal testing. The decision stems from significant security concerns identified during the evaluation process. The company determined the risks associated with the model were too substantial to proceed with a public launch. This marks a rare pullback for OpenAI, a leader in artificial intelligence development. Details regarding the nature of the security vulnerabilities have not been publicly disclosed. The cancellation highlights the ongoing challenges in ensuring the safe and responsible deployment of increasingly powerful AI technologies. OpenAI has not indicated when or if a revised version of the model might be released.