AI News. September 23, 2026

Sep 23, 2026

Anthropic introduced Claude Opus 5.5, matching Claude Fable 5.1 performance at 40% lower cost to run

Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.

4:31 PM · Sep 22, 2026 · 17.2M Views

2.74K Replies · 8.01K Reposts · 85.2K Likes

OpenAI officially launched GPT-6 Sol and GPT-6 Luna, built on the GPT-6 Astra architecture, with 50% lower API pricing than GPT-5.6 promotional rates.

OpenAI@OpenAI

Please welcome GPT-6 Sol and GPT-6 Luna to the GPT-6 universe. GPT-6 Sol and Luna build on the advances behind GPT-6 Astra, bringing much of its strengths into faster and more affordable models to support work at scale. We’ve also made caching and inference more efficient, and …

6:12 PM · Sep 22, 2026 · 7.61M Views

1.93K Replies · 4.99K Reposts · 50.1K Likes

a16z launched the Horowitz Andreessen Academy for young builders in the AI era, with OpenAI, Anthropic, Nvidia, Coinbase, Google, and Meta as founding partners

a16z@a16z

Announcing The Horowitz Andreessen Academy. The internet made it possible to know anything. AI makes it possible to do anything. The best assignments now are problems so hard they cannot be solved without AI. The Academy courses follow the same logic and will be taught by…

Gagan Biyani 🏛 @gaganbiyani

Today, we’re launching an ambitious new school called The Horowitz Andreessen Academy. Based in San Francisco, The Academy serves the most promising young high school graduates. We think this can be an elite institution that attracts top tier talent. One that prepares students

2:45 PM · Sep 22, 2026 · 196K Views

70 Replies · 153 Reposts · 1.49K Likes

Treasury Secretary Scott Bessent emerged as frontrunner for the White House AI czar role, per Semafor

CoinDesk@CoinDesk

LATEST: Treasury Secretary Scott Bessent is emerging as a frontrunner to become the White House’s new “AI czar,” Semafor reports, citing three sources familiar with the matter

9:46 PM · Sep 22, 2026 · 48.9K Views

44 Replies · 31 Reposts · 195 Likes

OpenAI called on the US to lead global frontier AI safety standards

Sam Altman@sama

People outside the AI labs should have a real say in how this technology develops, and a clear way to judge if it's happening safely. Standards should help prevent the concentration of power, including by making sure new companies and open-model companies can compete. They…

3:06 PM · Sep 22, 2026 · 559K Views

975 Replies · 436 Reposts · 5.66K Likes

OpenAI plans to let third-party groups conduct technical safety evaluations of its models during training, evaluation, and deployment phases.

OpenAI@OpenAI

As part of our efforts to pace the frontier, we’re committed to supporting independent assessments with deep levels of access across training, evaluation, and deployment. That access should enable third party assessors to challenge our assumptions, identify risks we may have…

5:18 PM · Sep 22, 2026 · 514K Views

382 Replies · 172 Reposts · 2.64K Likes

A banked usage limit reset button rolled out on Claude web and Desktop, framed as letting users try Opus 5.5.

edwin@edwinarbus

We're still getting the reset button up in the mobile app. But you can see it on the web or desktop app! Here: claude.ai/#settings/usage

psd369 @pdbunny369

@ClaudeDevs I don’t see my reset

8:59 PM · Sep 22, 2026 · 23.6K Views

6 Replies · 1 Repost · 61 Likes

DigitalOcean launched Managed Agents, supporting harnesses like OpenCode and Codex, with access to 16,000+ tools via its Inference Engine

DigitalOcean@digitalocean

DigitalOcean Managed Agents is now in public preview. Run Claude Code, Codex, or your own LangGraph agent in a runtime environment that pauses when idle. Put its tools behind one governed endpoint, and pick from 75+ open and proprietary models. One cloud, one bill. Prompts to …

3:08 PM · Sep 22, 2026 · 2.65M Views

210 Replies · 2.14K Reposts · 2.25K Likes

Meta’s Muse agent is being prepped for Telegram, Messenger, and possibly Signal integrations; a hidden Telegram bot creation feature already exists in the web UI via BotFather

🚨 AI News | TestingCatalog@testingcatalog

META 🔥: Muse agent is being prepared to get integrations with Telegram, Messenger, and potentially Signal soon. > The web UI already supports creating a dedicated Telegram bot via the BotFather tool, but it remains hidden. > Messenger is a likely candidate for the next …

1:44 PM · Sep 22, 2026 · 14K Views

21 Replies · 10 Reposts · 182 Likes

Meta may partner with Oracle to give Oracle Cloud users special access to the Meta AI Platform, with a dedicated activation feature in development

🚨 AI News | TestingCatalog@testingcatalog

Meta ❤️ Oracle? Meta may partner with Oracle by offering Oracle Cloud users special access to the Meta AI Platform. > A dedicated "activation" functionality now appears to be in development. > Oracle is hosting a live webinar on the "How Banks Can Use Existing Data and …

11:53 AM · Sep 22, 2026 · 11.9K Views

13 Replies · 7 Reposts · 129 Likes

Meta may bring its Muse Video model to APIs alongside new voice models around Meta Connect, with dedicated Video and Voice Playgrounds and a new Connectors section for user-submitted Muse Connectors in development.

🚨 AI News | TestingCatalog@testingcatalog

META 🔥: We may get Muse Video model available on the APIs soon. > Meta may release Muse Video on APIs along with new voice models during Meta Connect. > Dedicated Video and Voice Playgrounds are currently being in development on Meta Platform. Besides that, a separate …