Image created with Flux Pro v1.1 Ultra. Image prompt: Ornate showgirl glamour in orange-and-teal tones, champagne-bubble backdrop with glowing digital scripts featuring a crystal mask symbolizing alignment, stylized text “Anthropic” etched in pearlescent lettering across feather plumes; spotlit, dramatic contrast, vintage grain, cinematic, high-detail
“”Claude Code can now handle long-running tasks in the background. Start your dev server, run tests, or build your project without blocking your workflow https://x.com/_catwu/status/1953926541370630538
Claude Opus 4.1 (“”claude-leopard-v2-02-prod””) “”Opus 4.1 is here – Try our latest model for more problem solving power.”””” / X https://x.com/btibor91/status/1952366658326036781
Claude Opus 4.1 \ Anthropic https://www.anthropic.com/news/claude-opus-4-1
Claude Opus 4.1 beats GPT-5 on SWE bench https://x.com/Sauers_/status/1953504854044704973
Claude Opus 4.1 is available in Cursor! Let us know what you think.”” / X https://x.com/cursor_ai/status/1952782293925298655
Going live with the fellas @tbpn in an hour to talk about Opus 4.1 and Claude Code”” / X https://x.com/alexalbert__/status/1952801100299681959
GPT-5 (medium reasoning) is the new leader on the Short Story Creative Writing benchmark! GPT-5 mini (medium reasoning) is much better than o4-mini (medium reasoning). Claude Opus 4.1 shows gains over Opus 4. https://x.com/LechMazur/status/1953658077300875656
We joined the Pledge to America’s Youth along with 100+ organizations committed to advancing AI education. We’ll work with educators, students, and communities nationwide to build essential AI and cybersecurity skills for the next generation.”” / X https://x.com/AnthropicAI/status/1953864587192770921
We made some updates to Claude’s system prompt in https://x.com/AmandaAskell/status/1953147658031513860
China’s ByteDance just released an LLM-based agent for general purpose software engineering tasks. Trae Agent comes with an interactive CLI that can execute complex workflows using simple English prompts. It works with OpenAI and Anthropic API. 100% opensource. https://x.com/Saboo_Shubham_/status/1942047679758151783
@aidan_mclau This take is sad to see but you might not have full context. We cut OpenAl’s access for violating our APl terms and for the heavy usage of Claude Code among OAI tech staff. We’re going to continue providing API access for safety evals and benchmarking. That’s important to us. https://x.com/sammcallister/status/1951642025381511608
Anthropic Revokes OpenAI’s Access to Claude | WIRED https://www.wired.com/story/anthropic-revokes-openais-access-to-claude/
A reporter asked me for my off-the-record take on recent safety research from Anthropic. After I drafted an off-the-record reply, I realized that I was actually fine with it being on the record, so: *** Since I never expected any of the current alignment technology to work in”” / X https://x.com/ESYudkowsky/status/1952422379478741301
here’s an open question we’re trying to figure out: which of these hypotheses is right? 1) models matter, agents don’t: Claude Code or Cursor CLI or any agent does well on top of a good model like opus / gpt-5, and does poorly on top of a bad model like gpt-4.1-nano 2) agents”” / X https://x.com/charliebholtz/status/1953833772513644771
I’m thrilled to announce the definitive course on Claude Code, created with @AnthropicAI and taught by Elie Schoppik @eschoppik. If you want to use highly agentic coding – where AI works autonomously for many minutes or longer, not just completing code snippets – this is it. https://x.com/AndrewYNg/status/1953097967361245251
LangChain supports Claude Opus 4.1 and Sonnet 4’s citable search results — now GA on the Anthropic API and Vertex AI. With this update, you can: • Return search results with built-in titles and source links • Automatically link citations to the tool call that generated them https://x.com/LangChainAI/status/1953863129915420719
New Claude Code features are here: Microcompact: Clear old tool calls to extend session length Subagents: @-mention support + model selection for agents PDF support: Read PDFs directly from your file system https://x.com/_catwu/status/1952488684579873195
One more Claude Code feature dropping today: customizable status lines for your terminal. Type /statusline <status description> to get started. https://x.com/_catwu/status/1953927012592366062
RT @AnthropicAI: Today we’re releasing Claude Opus 4.1, an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. htt…”” / X https://x.com/TheZachMueller/status/1952771262415004146
So today i gave Claude Code a try for the first time (previously used Codex and Cursor). It implemented my two functions correctly, but… OMG what an awfully verbose code, i absolutely hated it and rewrote it all in no time and 3x less code😬 But I’ll give it a few more tries”” / X https://x.com/giffmana/status/1952434564472644016
Today we’re releasing Claude Opus 4.1, an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. https://x.com/AnthropicAI/status/1952768432027431127
Use Claude Opus 4.1 in @Windsurf”” / X https://x.com/cognition/status/1952778217728962943
anthropics/claude-code-security-review: An AI-powered security review GitHub Action using Claude to analyze code changes for security vulnerabilities. https://github.com/anthropics/claude-code-security-review
Automate security reviews with Claude Code \ Anthropic https://www.anthropic.com/news/automate-security-reviews-with-claude-code
Claude Code can now automatically review your code for security vulnerabilities.”” / X https://x.com/AnthropicAI/status/1953135070174134559
Anthropic already teasing Claude 4.2 ? “”We plan to release substantially larger improvements to our models in the coming weeks”””” / X https://x.com/scaling01/status/1952770544551538722
Having a magazine report on the fact that I attended a social event feels like a new level of life strangeness. I didn’t really expect my life to involve so many levels of life strangeness.”” / X https://x.com/AmandaAskell/status/1953193165491716190
Using @claudeai you now have search results as content blocks, bringing citations to agent applications – no more document workarounds needed! 𝙎𝙚𝙖𝙧𝙘𝙝 𝙧𝙚𝙨𝙪𝙡𝙩𝙨 𝙖𝙨 𝙘𝙤𝙣𝙩𝙚𝙣𝙩 𝙗𝙡𝙤𝙘𝙠𝙨 by @AnthropicAI enables proper source attribution for results from tool https://x.com/llama_index/status/1953859971072114766
Fixed the SWE-Bench chart and added Claude to it https://x.com/nrehiew_/status/1953516694238114187
Persona vectors: Monitoring and controlling character traits in language models \ Anthropic https://www.anthropic.com/research/persona-vectors
cheaper than Sonnet, better than Opus that’s all you need to know about GPT-5″” / X https://x.com/scaling01/status/1953512175651139935
