CelestialSyntax retweeted

ClaudeDevs@ClaudeDevsOct 9
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
Claude Managed Agents dynamic workflows are now available in public beta. It's a new type of multiagent orchestration, built for your most ambitious workloads.
A lead agent writes a plan that runs across many agents in phases, combining the results at the end.
CelestialSyntax retweeted

Tibo@thsottiauxSep 10
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
To make sure our current users have an incredible experience and continued access to Astra, we are going to pause subscriptions to our $200 Pro plan. These put the most strain on our systems and we wanted to take the smallest step that allows us to continue giving the broadest access possible. All other plans and the api remain available.
There is no impact to existing accounts and we are working on adding more capacity as fast as we can. Thanks!
Tibo@thsottiauxSep 9United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
Demand for Astra is really unprecedented. We're pulling all the levers possible to sustain the demand, but I've not seen anything like it until now and we went through very steep growth before. Priority will always be to keep excellent service for existing users, but we might have to pause new Pro subscriptions for a bit if this continues.
CelestialSyntax retweeted
The first lab that gets AI to write well is going to add like a T in market cap
I am more and more convinced that writing regression is the price the labs paid for long running agents.
RLVR rewards agent-lish because agents grade agents.
So what rewards actual human writing?
CelestialSyntax retweeted

Tibo@thsottiauxAug 29
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
We are reseting usage for all paid users of Codex and ChatGPT Work.
Please continue reading for an update on Codex usage limits. The team has been working around the clock, going through thousands of reports and shipping fixes.
Depending on how you use Codex, you should see your usage go between 10% and 50% further than before.
We really went with a fine comb, with many uncovered small things being longstanding and here is what we found and fixed:
- Compaction. We were keeping old images during compaction, sometimes making the context large enough to trigger compaction again. After the fix, usage dropped around 10% for users making heavy use of images. Fixed.
- Memory. Background memory workers could inherit Stop hooks and keep running when the hook wouldn’t let them finish. This affected fewer than 1% of users, with the long tail being pretty bad and we saw one example thread check whether it could stop 15,000 times. Fixed.
- Goals. In some cases, a set /goal could finish and then keep going past the intended stop condition, or the model would keep retrying broken tools without stopping. We saw examples consume anywhere from 15% to 70% of a weekly allowance. Fixed.
- Automations. Some custom schedules could run more frequently than configured. Fixed.
- Subagents. Smaller models (e.g. Luna) sometimes picked more capable helpers without being explicitly asked. The same was true where the orchestrating model not running in /fast mode could request sub-agents to run /fast. Fixed.
- Computer History. The older implementation could lead to repeatedly summarizing overlapping activity. For some cases we saw it consume up to one fifth of the weekly usage per week. Fixed.
- Rolling task summaries. Ordinary turns were triggering extra background requests. These added about 1% to token usage. Small each time, but it adds up. We have disabled this.
- MCP. Some tool results could be encoded twice. We also found tool instructions getting cut off and fetched again. Fixed.
We’ve also made architectural changes to prevent these from regressing and our teams will get paged if it happens regardless. We are also working on showing you directly in the app where your usage goes so you don’t have to guess.
Goes without saying that we’re resetting usage limits and I hope you enjoy a very nice Saturday!
CelestialSyntax retweeted

OpenAI Developers@OpenAIDevsAug 6
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
Compatible agentic clients at launch:
• Codex
• @ChatGPT
• @cursor_ai
• @github Copilot
• @kirodotdev
• @code
agent-plugins.org/
CelestialSyntax retweeted
Introducing Claude Opus 5.
It's a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.
CelestialSyntax retweeted
Beginning July 20, Claude Fable 5 will be included in all Max and Team Premium plans, at 50% of limits.
Pro and Team Standard users will continue to have access to Fable via usage credits, and will receive a one-time $100 credit.
Demand for Fable has been challenging to predict, which is why we rolled it out to subscription plans in stages, extending access several times as we secured additional capacity.
CelestialSyntax retweeted
Replying to @yacineMTB
I was clearly wrong about Anthropic. They are obviously currently the leader in AI. No company has released a model as good as Mythos/Fable and they will undoubtedly have Mythos 2 ready soon.
And I would never cut them off in a way that hurt them badly, even as a competitor. That’s not my style.
Tesla open sourced its patents and we made the Supercharger network available to all competitors, even though we could have made it a walled garden.
SpaceX launches competing satellite systems with no increase in price or use of unfair terms.
Even my worst enemies can attack me on this platform.
…
CelestialSyntax retweeted
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use.
Its capabilities exceed those of any model we’ve ever made generally available.
CelestialSyntax retweeted
I have what I believe is the most sophisticated skill library for doing fundamental-based long/short equity investing using AI agents anywhere in the world.
It’s a collection of over 100 very fleshed-out skills that each include assets (similar to worksheets that the agents can fill out when relevant), scripts, and deep reference files. But it’s a lot more than that.
It’s a coherent, cohesive, synthetic SYSTEM of modular and composable skills that form a hierarchy of abstractions.
You have skills that apply universally to any stock; those are Level 1. For instance, a management alignment skill.
Then you have sector/industry skills, Level 2, like regulated electric utilities, restaurants, or hospitals, to give just a few examples.
Then you have more specialized skills that apply more narrowly, like for liquidations or spinoffs.
And even more narrowly to specific scenarios, like commodity-exposed companies that are temporarily and unsustainably over- or under-earning.
The skills are interconnected, with logic explaining when and how to “hand off” to another, more specialized skill. Each skill forms a contract that specified what it takes as input and generates as output.
And the skills are all tightly interwoven with my universal cli tool, hfdt (hedge_fund_data_tool) and my ee (eidetic_engine_cli) structured memory tool.
The hfdt tool connects to tons of different data sources and provides a highly agent-intuitive interface for retrieve and processing data of all kinds.
I’ve mined from dozens of my own writeups and models from a decade of working at hedge funds including Millennium and Balyasny, and from many other sources.
These skills truly contain a massive amount of knowledge about the world and about investing.
If this sounds interesting to you, and you manage an institutional-sized long/short equity hedge fund or family office, please reach out to me.
I can help you build a set of customized skills that you would own that operate on top of my skill library, and can integrate with any existing data sources you have that aren’t already supported by my tooling.
CelestialSyntax retweeted
Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors.
Available today at the same price.
CelestialSyntax retweeted
Introducing GPT-5.5
A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.
Now available in ChatGPT and Codex.
CelestialSyntax retweeted

Tibo@thsottiauxApr 21
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
I don't know what they are doing over there, but Codex will continue to be available both in the FREE and PLUS ($20) plans. We have the compute and efficient models to support it. For important changes, we will engage with the community well ahead of making them.
Transparency and trust are two principles we will not break, even if it means momentarily earning less. A reminder that you vote with your subscription for the values you want to see in this world.
CelestialSyntax retweeted

Tibo@thsottiauxApr 21
United States
United StatesConnected via WebAccount-level information, not a live location or per-post device.
New image model is now the default in Codex. It's incredible as a starting point for building websites or to generate assets for video games and codex can use it as any other tool in its toolkit.
Asked Codex what it pictures my day looks like given we hit 4M active users today.
CelestialSyntax retweeted
Introducing Claude Design by Anthropic Labs: make prototypes, slides, and one-pagers by talking to Claude.
Powered by Claude Opus 4.7, our most capable vision model. Available in research preview on the Pro, Max, Team, and Enterprise plans, rolling out throughout the day.
CelestialSyntax retweeted
We’re updating our ChatGPT Pro and Plus subscriptions to better support the growing use of Codex.
We’re introducing a new $100/month Pro tier. This new tier offers 5x more Codex usage than Plus and is best for longer, high-effort Codex sessions.
In ChatGPT, this new Pro tier still offers access to all Pro features, including the exclusive Pro model and unlimited access to Instant and Thinking models.
To celebrate the launch, we’re increasing Codex usage for a limited time through May 31st so that Pro $100 subscribers get up to 10x usage of ChatGPT Plus on Codex to build your most ambitious ideas.
CelestialSyntax retweeted
Building, deploying, and scaling agents just became a whole lot easier with Claude Managed Agents.
You define your agent's tasks, tools, and guardrails. We run it on our infrastructure, so you can go from prototype to production to scale quickly and iterate even faster.
CelestialSyntax retweeted

Alexandr Wang@alexandr_wangApr 8
United States
United StatesConnected via United States App StoreAccount-level information, not a live location or per-post device.
1/ today we're releasing muse spark, the first model from MSL. nine months ago we rebuilt our ai stack from scratch. new infrastructure, new architecture, new data pipelines. muse spark is the result of that work, and now it powers meta ai. 🧵
CelestialSyntax retweeted
Introducing Project Glasswing: an urgent initiative to help secure the world’s most critical software.
It’s powered by our newest frontier model, Claude Mythos Preview, which can find software vulnerabilities better than all but the most skilled humans.
anthropic.com/glasswing


















