can you believe it guys?? mythos general availability, just a week away!! i am so happy about this information
Ari K on Twitter / X
NADIR: IT DOES YOU (final version) My response to the Astra vid pic.twitter.com/3qXQT2FIhe— Ari K (@arikuschnir) September 5, 2026
Astra for Coding: Why Are We Doing This Again?
Some thoughts on Astra and newfangled long-horizon models.
GPT-6 Astra System Card - OpenAI Deployment Safety Hub
Today, we are releasing GPT-6 Astra, the most capable model we have ever broadly deployed. Astra is our first model to reach the Critical level of cybersecurity capability under our Preparedness Framework.
Claude Mythos #2: Cybersecurity and Project Glasswing
Anthropic is not going to release its new most capable model, Claude Mythos, to the public any time soon.
Anthropic’s Mythos 5 is back
Anthropic’s Mythos 5 model, the subject of weekslong negotiations with the Trump administration, is back in action. No word yet on Fable 5.
Claude Mythos #3: Capabilities and Additions
To round out coverage of Mythos, today covers capabilities other than cyber, and anything else additional not covered by the first two posts, including new reactions and details.
Exclusive: US releases powerful Anthropic model Mythos to some US companies
The move comes the same day as a new OpenAI model sees a limited release.
Thoughts on OpenAI acquiring Astral and uv/ruff/ty
The big news this morning: Astral to join OpenAI (on the Astral blog) and OpenAI to acquire Astral (the OpenAI announcement). Astral are the company behind uv, ruff, and ty—three …
sōm ⁂ (@hyl.st)
another weekend warrior trying to save the world shaping reality, one myth at a time be free, curious and kind
GPT-6 Astra: The System Card, Alignment and What Comes Next
OpenAI claims that Astra is ‘the most intelligent and most aligned [available] model’ in the world.
Who's ready for Track 4 of the #atmospheresessions? I hope you are, because this week, we've got the incredible @richferro.com of @latinsky.social, @medsky.network, @atls.city, @stemlabels.xyz, @feeds.richferro.com, and I'm sure I'm missing more! I'm SO EXCITED! Tomorrow, Wednesday 3PM PT/6PM ET!
the atmosphere sessions: track 4 w/ Rich Ferro of Latinsky and Medsky
atmo.rsvpIt's release week at the house, and here's our next announcement: Mise en Mode, the emerging web standard! AT Protocol is a federated model for building social media apps like Bluesky. We want folks in the Atmosphere to adopt for supporting a visitor's own look over their own. standard.mode.place
standard.mode.place: carry your look from app to app
standard.mode.placeSure seems like there’s nothing stopping @ghost.org from hopping on board the AT train now at very low dev cost. Would love for our existing Ghost blog to magically turn @standard.site compatible overnight.
Bryan (they/them)
My first Leaflet!! You can now publish TO @standard.site lexicons from @astro.build sites using my new plugin! As sites like @pckt.blog and @leaflet.pub and @offprint.app add support for the site.standard lexicon, this plugin will let you publish to and pull from those other sites! #atproto #atdev
