AISN #77: New Model Releases From OpenAI, SpaceXAI, and Meta
<p> Also, economists and mathematicians expect near-term AI impacts, and AI 2040: Plan A. </p> <p> Welcome to the AI Safety Newsletter by the Center for AI Safety. We discuss developments in AI and AI safety. No technical background required.</p><p> In this edition, we look at the most recent model releases from OpenAI, SpaceXAI, and Meta, as well as an open letter calling for action on potential near-term economic disruption, a recent solution to a longstanding open math problem, and a new scenario published by the AI Futures Project.</p><p> Listen to the AI Safety Newsletter for free on Spotify or Apple Podcasts.</p><p><strong> New Model Releases: GPT-5.6, Grok 4.5, and Muse Spark 1.1</strong></p><p> On July 9, OpenAI launched GPT-5.6 for the public. This broader release followed an initial preview that had been limited to “trusted partners” at the request of the US government, to allow for capabilities assessments. The government's intervention mirrored its earlier directive asking Anthropic to restrict Fable 5 and Mythos 5 access due to national security concerns around cyber capabilities, before the models were later re-released.</p><p> OpenAI released GPT-5.6 Sol publicly about two weeks after announcing that it was working with the US government to address the model's [...]</p> <p>---</p><p><strong>Outline:</strong></p><p>(00:46) New Model Releases: GPT-5.6, Grok 4.5, and Muse Spark 1.1</p><p>(04:47) Economists and Mathematicians Say AI Could Have Major Near-Term Impacts</p><p>(09:59) AI 2040 -- Plan A</p><p>(13:10) In Other News</p><p>(13:14) Government</p><p>(14:41) Industry</p><p>(15:36) Civil Society</p><p>(16:48) AI Governance Opportunity</p> <p>---</p> <p><b>First published:</b><br/> July 21st, 2026 </p> <p><b>Source:</b><br/> <a href="https://newsletter.safe.ai/p/aisn-77-new-model-releases-from-openai?utm_source=TYPE_III_AUDIO&utm_medium=Podcast&utm_content=Source+URL+in+episode+description&utm_campaign=ai_narration" rel="noopener noreferrer" target="_blank">https://newsletter.safe.ai/p/aisn-77-new-model-releases-from-openai</a> </p> <p>---</p> <p>Want more? Check out our <a href="https://newsletter.mlsafety.org/?utm_source=TYPE_III_AUDIO&utm_medium=Podcast&utm_content=Episode+description+footer" target="_blank" rel="noreferrer">ML Safety Newsletter</a> for technical safety research.</p> <p>Narrated by <a href="https://type3.audio/?utm_source=TYPE_III_AUDIO&utm_medium=Podcast&utm_content=Narrated+by+TYPE+III+AUDIO&utm_term=center_for_ai_safety&utm_campaign=ai_narration" rel="noopener noreferrer" target="_blank">TYPE III AUDIO</a>.</p> <p>---</p><div style="max-width: 100%";><p><strong>Images from the article:</strong></p><a href="https://substackcdn.com/image/fetch/$s_!Q0Ye!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4cbf6d1f-1bd0-437e-a877-2f9825d72cf5_1600x900.png" target="_blank"><img src="https://substackcdn.com/image/fetch/$s_!Q0Ye!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4cbf6d1f-1bd0-437e-a877-2f9825d72cf5_1600x900.png" alt=""GPT 5.6" text over space scene with planet and star." style="max-width: 100%;" /></a><hr style="margin-top: 24px; margin-bottom: 24px;" /><a href="https://substackcdn.com/image/fetch/$s_!cecN!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdfd58784-ade4-4b38-826f-17b173f86b2f_2048x829.png" target="_blank"><img src="https://substackcdn.com/image/fetch/$s_!cecN!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdfd58784-ade4-4b38-826f-17b173f86b2f_2048x829.png" alt="Statement titled "We Must Act Now" on AI's economic transformation." style="max-width: 100%;" /></a><hr style="margin-top: 24px; margin-bottom: 24px;" /><a href="https://substackcdn.com/image/fetch/$s_!4QQp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb9c139d-a509-4831-b651-abf447b89739_1200x588.png" target="_blank"><img src="https://substackcdn.com/image/fetch/$s_!4QQp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb9c139d-a509-4831-b651-abf447b89739_1200x588.png" alt="levent tweets: "hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final ((1+xy)^3 z + y^2 (1+xy) (4+3xy), y + 3 x (1+xy)^2 z + 3 x y^2 (4+3xy), 2 x - 3 x^2 y - x^3 z): \C^3\to \C^3, has jacobian determinant -2, and sends (0, 0, -1/4), (1, -3/2, 13/2), and (-1, 3/2, 13/2) to (-1/4, 0, 0)"." style="max-width: 100%;" /></a><p><em>Apple Podcasts and Spotify do not show images in the episode description. 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