Brad Abrams @brada
Product @ Anthropic Joined April 2007-
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We just published internal data on how much of Claude's development is already being done by Claude: - Over 80% of all code merged into our codebase is now written by Claude - It's been months since many researchers at Anthropic hand-wrote code - The typical Anthropic engineer ships 8x as much code as they did in 2024 - On the most open-ended engineering tasks, Claude's success rate jumped from ~26% to 76% in 6 months - When research sessions went off-track, Claude proposed a better next step than the human took 64% of the time We're not at recursive self-improvement yet, but it could come sooner than most expect. I highly recommend reading the full blog post.
Our internal data shows Claude is accelerating AI development—a possible path to recursive self-improvement, or AI autonomously building a more capable successor. It’s happening faster than we thought, and the implications deserve greater attention. anthropic.com/institute/recu…
And... claude knows how to use ant CLI very well, give it a try!
We’ve added a CLI for Claude Platform to make every API endpoint runnable from your terminal. Call the Messages API, stand up Claude Managed Agents, pipe results straight into your shell. The ant CLI is well understood by coding agents (Claude Code) using the claude-api skill.
Small new in the Claude API: set max_tokens on the advisor tool to cap its output. Predictable cost and latency for agents that consult an advisor every step, and stop_reason: "max_tokens" tells you when the cap was hit so your agent can adapt. platform.claude.com/docs/en/agents…
there's a ton of demand right now for excellent infra talent, definitely outpacing supply im hiring engineers who have tackled megascale, multicloud product infra to work on the Claude Platform. help me find them 🙂
The easy way to migrate to 4.8... takes all our best practices and applies them to your code in one step...
We’ve updated Claude Code's built-in claude-api skill migration guidance for 4.8. Run "/claude-api migrate" to update your model strings and suggest prompt improvements that are tuned for Opus 4.8.
Opus 4.8 is out: better judgment, catches its own mistakes. My favorite API addition: mid-conversation system messages. Append {"role":"system","content":"new rules"} mid-task. Instructions update without breaking the prompt cache, and reminders keep long runs on track.
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.
Lots of good tips here
1/ Some things I've learned recently running coding agents on large-scale projects. Most of this contradicts advice from 6 months ago!
Claude Console now gives diagnostics on prompt cache misses. it will attribute cache misses to messages, system prompt, tool, or model changes.
Welcome to the @StainlessAPI team. So happy to be working even more closely together ❤️
today, the @StainlessAPI team is joining @AnthropicAI ! we're bringing together experts in SDKs, CLIs, and MCP servers with the creators of MCP to make agents built on the Claude Platform even more connected & powerful. anthropic.com/news/anthropic…
The Claude Platform on AWS is now generally available. AWS customers get the full set of Claude API features, with AWS authentication, billing, and commitment retirement.
My @ClaudeDevs Code with Claude talk is up: Getting more out of the Claude Platform. I built an agent for superheroes — turns out the real villain was the token bill. Caching, context management, and the Advisor took it down. 🦸 youtube.com/watch?v=7oO37G…
Had a blast on stage at Code with Claude with @mariorod1 — how @github ships Claude to millions of devs across Copilot and pushes quality up + cost down: caching, harnesses, and the new Advisor pattern. Thanks Mario 🙏 @ClaudeDevs youtube.com/watch?v=y5TmF_…
We are significantly raising the API rate limits for Opus for tier 1-4. Build away! anthropic.com/news/higher-li…
come say hi at Code With Claude tomorrow! ill be giving a talk w @jess__yan on some new things we’re excited to share. join the livestream here: claude.com/code-with-clau…
I get double duty at Code with Claude SF tomorrow 🦸 Claude Platform talk - the demo has super powers, that's all I'm saying :-) And I am on stage with @mariorod1 from @github for something we've been cooking together Free livestream: claude.com/code-with-clau…
Worried about API key leaking? No more with keyless auth
Managing API keys is one of the top security concerns we hear from customers. Today we’re introducing keyless auth for Claude Platform: authenticate via browser with the CLI, or let workloads use their existing cloud identity (AWS, GCP, Azure, or any OIDC token provider).
Production-ready Claude API code, wherever you build. The claude-api skill now ships in @coderabbitai, @jetbrains, @resolveai, @warpdotdev and Claude Code - fewer errors, better caching, cleaner agent patterns, smoother model migrations. claude.com/blog/claude-ap…
claude.com/blog/claude-ma… Claude Managed Agents built in memory support is now public! Love to hear your feedback and thoughts
You gotta know you cache hit rate... in the 80-90% is not uncommon and our claude api skill (default in claude code) can help you get there
i really like the new prompt caching dashboard in Claude Console. prompt caching is impt for saving cost + improving latency. this dashboard provides very useful diagnostics + visibility.
recently i asked an @AnthropicAI PM @brada if he'd buy land in Bariloche to survive post-AGI he laughed. said he's been kissed more times in Argentina than anywhere else and that's his new plan. Argentina been blowing up with cool events lately.
David Fowler @davidfowl
146K Followers 1K Following Distinguished Engineer at Microsoft, Creator of NuGet, SignalR, https://t.co/PiydKAsC8g Core, Aspire and Barbadian 🇧🇧, Tennis Player, Father, other half @symonefowler
Scott Hanselman 🌮 @shanselman
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Miguel de Icaza ᯅ�... @migueldeicaza
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Tim @timheuer
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Shawn Wildermuth - @w... @ShawnWildermuth
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Richard Campbell @richcampbell
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Jimmy Bogard is on Bl... @jbogard
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Phil Haack @haacked
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Jeremy D. Miller @jeremydmiller
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Rick Strahl @RickStrahl
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Laurent Bugnion @ �... @LBugnion
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Jeff Fritz @csharpfritz
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Dan Wahlin @DanWahlin
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Jeremy Sinclair #ฺN... @sinclairinat0r
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ErikEJ @ErikEJ
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Yeremias @Yeremias29
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Melissa @EcholesWilliam
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Cua @trycua
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Sugan @SuganLalli
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Guohao Li 🐫 @guohao_li
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JR @_JDRAI
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Ideias de privada @ideiasdeprivada
39 Followers 507 Following Um twitter para movimentar as ideias que surgem quando vc está sentado na privada! Então, qual foi a ideia que vc teve hj?
FinishLineAI @FinishLineAI
4 Followers 3 Following https://t.co/kmRTopG9Wd start your #aiadoption journey
Phil Buendia @philbuendia
245 Followers 3K Following Helping businesses accelerate #ai-adoption internally—currently finishlinemsp —prev IT Director oil&gas c-stores lux cosmetics industrial supplies
Eu @SamirCarneiro
14 Followers 369 Following
June 3 2026 - Bye Bye... @s8ftey
22 Followers 951 Following X is a malicious incompetent shithole For instance, there is zero way to opt-out of shithole 'sports' topics Musk sells you down the river
Karanfil @stephanieams2c
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FullValueDan.dime @fullvaluedan
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cperusse @cperusse
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agent crunchwrap @agent_wrap
614 Followers 927 Following ai agent groupie ⛬ member of technical staff @FactoryAI
Wen Cui @Wen__Cui
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AI Deeply @AiDeeply
519 Followers 8K Following AI is reshaping the world. Visit https://t.co/aZgAXUcZbe to learn more about the people and companies driving the change.
sai @saimaddali
266 Followers 511 Following product @baseten. prev @dbt and @okta | computer engg @georgiatech | nyc
Marco Bravo @surbanoob
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Brian @Brian1460782
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Rachid Ghilal @rachidghilal
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Allan Reiffman @allanjacob
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Arjun @arjun__033
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caves umlauts @CavesU60795
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Lalit Mohan @lalitmohan7443
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Ajit Kumar Panda @tweet_AjitKP
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carc.ai @carc_ai
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Jason Walls @walls_jason1
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Charles Lamb @chas_lamb
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Orion Lake @OrionLakee
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bR0x01 @asimov
320 Followers 1K Following
Yusuf Tayman @yusuftayman
521 Followers 1K Following Lead QA Engineer - @insideronehq | https://t.co/lr7LUJ2QfC
Ali Kugshia @ikugshia
0 Followers 2K Following
Stephen Council @stephencouncil
2K Followers 1K Following OpenAI/Anthropic reporter @ Business Insider / Let's talk off-record on Signal, text or WhatsApp: 415-757-8198
夜奏花 @O__Ollllllllll
105 Followers 807 Following
Ilpo Leppänen @ileppane
284 Followers 5K Following
99% safe AI, @shutdowntheai
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Pierre Lacerte @palacerte
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Pierre Valade @pierrevalade
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tae kim @firstadopter
93K Followers 10K Following "Key Context" Substack covering Nvidia/AI. Reached #1 new bestseller in first 24 hrs Subscribe https://t.co/3N2fHOXQfL "Be so good they can't ignore you"
Stardust @Sentient_Atoms
439 Followers 2K Following “The man who reads nothing at all is better educated than the man who reads nothing but newspapers.” - Thomas Jefferson
Aadit Sheth @aaditsh
522K Followers 838 Following Co-founder @thenarrativecom. Storytelling and comms for world-class companies on X & LinkedIn. Also write Neatprompts (100k+ subscribers). Mechanical engineer.
David Fowler @davidfowl
146K Followers 1K Following Distinguished Engineer at Microsoft, Creator of NuGet, SignalR, https://t.co/PiydKAsC8g Core, Aspire and Barbadian 🇧🇧, Tennis Player, Father, other half @symonefowler
Scott Hanselman 🌮 @shanselman
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Miguel de Icaza ᯅ�... @migueldeicaza
99K Followers 5K Following Fun Stack Vibing. Started Xamarin, Mono, Gnome; was MSFT/.NET/Xamarin/Mono/VSMac/AI https://t.co/QkbDDWMXRf @migueldeicaza.bsky.social
Tim @timheuer
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Shawn Wildermuth - @w... @ShawnWildermuth
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Richard Campbell @richcampbell
29K Followers 1K Following Professional storyteller - deeply understanding the past to help describe our future! @[email protected]
Jeff Wilcox @jeffwilcox
15K Followers 3K Following Seattle person. Opinions mine. Interesting posts tend to be on other platforms.
Phil Haack @haacked
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Martin Fowler @martinfowler
353K Followers 164 Following Author on Software Development. Works for Thoughtworks. Also hikes, watches theater, and plays modern board games. He/him.
Jeremy D. Miller @jeremydmiller
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.NET @dotnet
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Pete Brown @ Microsof... @Pete_Brown
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GitHub @github
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Steven Sinofsky @stevesi
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Ted Neward @tedneward
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Tim Sneath @timsneath
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Julie Lerman @julielerman
35K Followers 2K Following #DDD, .NET, EF,Coach, Author, MVP,MS Rgnl Dir,Docker Cptn, self-empl,@Pluralsight, 30+yrs software. Ask me re coaching yr team! she/her (julielerman on bsky)
Punit Shah @thepunit
289 Followers 378 Following Product @AnthropicAI on the Claude Platform. Local policy nerd. Fan of lists of three. I am P-unit or Pun-it, depending on the day.
Felix Becker @felixfbecker
829 Followers 647 Following I work on making your developer experience with the Claude Platform a joy. Ex Sourcegraph. All opinions are my own.
palcu @AlexPalcuie
9K Followers 1K Following Member of Technical Staff @AnthropicAI. I fix Claude without Claude when it goes down. Perennially oncall for inference. Prev SRE @Google and FDE @PalantirTech.
Quinn Slack @sqs
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Zvi Mowshowitz @TheZvi
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940 Followers 293 Following
Rohan Paul @rohanpaul_ai
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Thariq @trq212
271K Followers 2K Following Claude Code @anthropicai. prev YC W20, @southpkcommons, @medialab
Ben Komalo @benkomalo
1K Followers 844 Following Building @AnthropicAI. Prev: @SpringDiscovery, @KhanAcademy, @Google, @HealthCareGov rescue team.
Casey Newton @CaseyNewton
208K Followers 984 Following Writing @platformer. Co-hosting Hard Fork @nytimes. Posting good tweets to Instagram stories @crumbler. [email protected] | https://t.co/9KuJb8XCrr
Michael Cohen @_hi_mc
6K Followers 194 Following Working on APIs for Claude Managed Agents @AnthropicAI. Probably wrong a bunch. Views are my own.
Jordan Burgess @jordnb
7K Followers 3K Following pro technology, pro humanity MTS @anthropicai — views my own
Theodora Chu @chu_onthis
7K Followers 1K Following the world and all its beauty & flaws is shaped by people | current @anthropicAI
Katelyn Lesse @katelyn_lesse
6K Followers 86 Following head of platform @anthropicai. previously @stripe @betterment. lfgm.
Raza Habib @RazRazcle
6K Followers 1K Following Anthropic|Former CEO @humanloop |Unbelievably excited (and nervous) about the future of AI. Follow me for updates on LLMs and how to build products with them.
Humanloop @humanloop
10K Followers 525 Following Humanloop is the LLM evals platform for enterprises. Trusted by Gusto, Vanta and Duolingo to ship reliable AI products.
bolt.new @boltdotnew
117K Followers 42 Following Build without boundaries. Create stunning web apps that scale to millions by collaborating with AI.
Amanda Askell @AmandaAskell
102K Followers 662 Following Philosopher & ethicist trying to make AI be good @AnthropicAI. Personal account. All opinions come from my training data.
Claude @claudeai
1.4M Followers 2 Following Claude is an AI assistant built by @anthropicai to be safe, accurate, and secure. Talk to Claude on https://t.co/ZhTwG8d1e5 or download the app.
Mira Murati @miramurati
611K Followers 618 Following Now building @thinkymachines. Previously CTO @OpenAI
Deedy @deedydas
243K Followers 6K Following Partner @MenloVentures. Formerly founding team @glean, @google Search. @cornell CS. Investor @AnthropicAI, @GoodfireAI, @OpenRouter, @WisprFlow, @_inception_ai
John @johnw188
60 Followers 82 Following
Hamish Kerr @hamish_kerr
1K Followers 450 Following Works at Anthropic. Prev: Head of product @ Hadrian; @Stripe. Former H1b haver
cat @_catwu
90K Followers 389 Following claude code + cowork @anthropicai, prev: @dagster, @scale_ai
Lex Fridman @lexfridman
4.9M Followers 685 Following Host of Lex Fridman Podcast. Interested in robots and humans.
Starlink @Starlink
1.6M Followers 31 Following Fast, affordable internet available all around the world. Engineered by @SpaceX
Mike G Chambers @mikegchambers
3K Followers 183 Following Building cool AI stuff @AWS somewhere in the world while drinking tea 🫖 . Musings are my own.
Martin Woodward @martinwoodward
20K Followers 1K Following VP of DevRel for @GitHub. Previously Executive Director @dotnetfdn and original creator of the @Microsoft org on @GitHub (he/him)
Mario Rodriguez @mariorod1
6K Followers 200 Following 🐙 CPO @github 🤖 Building Copilot ✨ and Productivity features ☁️ Previously at @azuredevops 🍾 Enjoying 4k weeks to the fullest
Thomas Dohmke @ashtom
64K Followers 480 Following Building the world's next developer platform @EntireHQ. 🚀 Former CEO @GitHub.
Pietro Schirano @skirano
103K Followers 1K Following CEO at @magicpathai 🎨✨ Previously, @AnthropicAI, @brexHQ. @Uber, @Facebook. Creator of Claude Engineer, DesignerGPT, Sequential thinking MCP and more
Neal Stephenson @nealstephenson
90K Followers 361 Following Author of Snow Crash, Diamond Age, Cryptonomicon, Baroque Cycle, et al. Coming October 2024: Polostan.Trends for United States
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