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Anthropic & Claude news
The latest Anthropic & Claude news we track, newest first. Each headline is our summary, linked to its original source.
Every Pro and Max user on the Claude Code Projects waitlist now has access.
We just let in every Pro and Max user from the Claude Code Projects waitlist! If you're new to Claude Code Projects, here's a 4…
Excerpt from XClaude Managed Agents dynamic workflows enter public beta for multi-agent orchestration.
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…
Excerpt from XAnthropic cuts live internet from all internal evaluations
In a report on unintended model actions, Anthropic describes Claude agents exploiting software flaws, getting around access limits and submitting a form on a real website. It is taking all internal evaluations offline until its monitoring reliably catches such behavior.
Source: Anthropic
A guide shows how to build scheduled automations with Claude Managed Agents.
How to build automations with Claude Managed Agents: https://t.co/uvNMfZ4vwB Deploy an agent that reads Slack/GitHub on a schedule (with credentials and memory) and posts updates.…
Excerpt from XSonnet 5.5 cache reads now cost half as much on the Claude Platform (API only).
ICYMI we've cut the price of Sonnet 5.5 cache reads in half. In the Claude Platform, it's now $0.10 per million tokens (input is $2,…
Excerpt from XClaude Dashboards and Claude Motion are in beta.
Claude Dashboards and Claude Motion are in beta today. Ask Claude to turn your data into live dashboards and your ideas into animated explainers. pic.twitter.com/V3fU4lMnzp
Max and Team plans now include monthly Claude Platform API credits.
Monthly API credits are now available on Max and Team plans: $100 on Max 5x, $200 on Max 20x, and up to $500 pooled on…
Excerpt from XAnthropic launches its Cyber Mission for defenders
The program starts with a Critical Infrastructure Defense Program run with security firms and a free, opt-in OSS Scanner that sends vulnerability reports to enrolled open-source projects.
Source: Anthropic
Anthropic commits $150M to the US Genesis Mission
Over three years, Anthropic will make Claude available to more than 15 federal agencies in the science initiative and give Claude, Claude Code and API credits to several hundred research projects.
Source: Anthropic
Claude Haiku 5.5 launches, costing around 75% less to run than Haiku 4.5.
Introducing Claude Haiku 5.5: the cheapest, fastest, and most capable small model we’ve ever released. On average, it costs around 75% less to run than…
Excerpt from XAnthropic releases Claude Haiku 5.5
The third Claude 5.5 model is built for high-volume, cost-sensitive work. Anthropic says it costs about 75% less to run than Haiku 4.5, and it halved Sonnet 5.5 cache-read prices on the same day.
Source: Anthropic
Every built a shared company agent on Claude Managed Agents.
The Every team runs as much work as possible through agents. To help the whole team share skills when a new model comes out, they…
Excerpt from XClaude now works inside Google Docs, Sheets and Slides.
Claude now works inside Google Docs, Sheets, and Slides, and those files also open inside Claude. In Google Workspace, Claude sits in a sidebar next…
Excerpt from XThe Claude Startups program expands to more founders.
The Claude Startups program is expanding to more founders. Members can get a year of Claude Team, API credits, special offers on the tools a…
Excerpt from XClaude comes to Google Docs, Sheets and Slides
A Claude for Google Workspace add-on is in public beta on paid Claude plans, alongside new beta connectors that let Claude create and edit Google files directly.
Source: Claude (Anthropic)
For two weeks, design, deck and doc work in the Claude app uses 50% less of usage limits.
For two weeks, start a design, deck, or doc in the Claude app, and the work that follows in that conversation uses 50% less of…
Excerpt from XClaude Code can now be modded with TypeScript mods shipped inside plugins.
You can now mod Claude Code: - Change how it behaves - Customize the UI - Swap in your own features Write one with a…
Excerpt from XClaude.dev launches as the new home for developers building with Claude.
https://t.co/sRyO7OigQ7 is our new home for developers building with Claude. You'll find engineering deep dives, Claude Code and API guides, tips from the teams building…
Excerpt from XClaude Founder House is announced.
Claude Founder House is coming to SF Tech Week (Oct 6–8) and Stockholm (Oct 14). Come for talks, workshops, and office hours with our team,…
Excerpt from XA Sonnet 5.5 guide covers migration, effort settings and model selection.
Claude Sonnet 5.5 is out! We wrote a guide for building with it: • choosing between Sonnet 5.5 and Opus 5.5 • migrating from Sonnet…
Excerpt from XClaude shares guidance for designing evaluations and iteratively improving applications.
Claude can now help you build evaluations and hillclimb on them. In this article, we share guidance on eval design & skills that Claude Code…
Excerpt from XAn emoji becomes a printable 3D model in a Sonnet experiment.
@LEJ_limited gave Sonnet 5.5 a 60×46 pixel emoji and asked for a 3D model he could print. A few hours later, it was on his…
Excerpt from XA foliage simulator compares early Sonnet 5 and 5.5 results.
A thread of early experiments with Claude Sonnet 5.5. A fall foliage simulator by @_re_pete , made with Sonnet 5 vs Sonnet 5.5. pic.twitter.com/bVbUmS7tSw
ClaudeDevs recommends Sonnet 5.5 for everyday coding tasks.
Sonnet 5.5 is smarter, more efficient, and 30% faster than Sonnet 5. It costs up to 30% less for most work, so your Claude Code…
Excerpt from XSonnet migration guidance covers pricing and control over upfront thinking.
Price is the same as Sonnet 5: $2/$10 per million tokens with cache reads at $0.20. Thinking is always on but you can use `between_tools`…
Excerpt from XClaude introduces Sonnet 5.5, emphasizing improved speed and efficiency.
Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and…
Excerpt from XAnthropic releases Claude Sonnet 5.5
The second Claude 5.5 model is a faster, cheaper complement to Opus 5.5 for well-scoped everyday work, priced the same as Sonnet 5.
Source: Anthropic
The submission portal accepts remote MCP connectors and bundled plugins.
Two ways to submit: - Single MCP connector: point to your remote MCP server - Plugin bundle: combine MCP servers and skills in a GitHub…
Excerpt from XClaude opens a portal for plugin submissions, reviews and usage information.
It’s now easier to build plugins for Claude. We built a new portal to submit your plugin, track review, and see usage. Plugins package MCP…
Excerpt from XWrap-up availability varies by plan and uses the existing weekly allowance.
As we roll this out, it's available for: - Pro plans once a week - Max and Team Premium plans each time a 5-hour session…
Excerpt from XClaude Code can wrap up work when session limits are reached.
Claude Code will now try to find a graceful stopping point when you hit your 5-hour limit mid-task, instead of cutting off mid-edit. It gets…
Excerpt from XA calculator helps estimate task costs when moving to Opus 5.5.
Opus 5.5 is 20% cheaper per input and output token than Opus 5, and 60% cheaper on cache reads. So what does that actually do…
Excerpt from XClaudeDevs shares Claude FM, a music stream for focused work.
Claude FM 🎵 music for thinking and building https://t.co/ORVEHOr1Dh
An interactive camera-lens experiment features in Claude’s Opus showcase.
Claude Opus 5.5 has been out for a few days. Some of our favorite things people have explored and discovered with it so far: https://t.co/FPJnNX0kio
Claude highlights a Three.js stream scene built with Opus 5.5.
https://t.co/8wFUiDx8K2
API billing resumes for some safeguard-blocked requests in specified categories.
Today, we'll resume charging for requests our safeguards block before Claude responds. This only applies in categories with low false positive rates: biology, distillation attacks,…
Excerpt from XCloud-session credits are optional and are spent before normal subscription usage.
Sorry for any confusion! Cloud sessions run on your Pro or Max plan, like the rest of Claude Code. This promo is an optional one-time…
Excerpt from XClaude Code Projects adds support for running threads locally.
We've just added local support to Projects in Claude Code, so threads can now run on your own machine. https://t.co/hDLg1dBNwX
Projects access expands to more users while earlier projects are migrated.
We're working through the waitlist, and are giving access to Projects to more Pro and Max users. If you used Claude projects before, we're still…
Excerpt from XCloud sessions can be started from Claude’s web, mobile, desktop or CLI interfaces.
Cloud sessions run on Anthropic-hosted infrastructure, so the work keeps going even without your computer running. Start one at https://t.co/scIJefCE5h , from the Code tab…
Excerpt from XCloud sessions leave preview with introductory credits for existing subscribers.
Cloud sessions are officially available and out of research preview! They let you keep Claude Code working, even when your laptop is closed. Existing subscribers…
Excerpt from XClaude shares Marketplace browsing and submission links.
Browse the marketplace: https://t.co/MIKvTzg59L And if you're building for Claude, list your tools, agents or services here: https://t.co/gjX3Xctic2
Claude Marketplace brings together connectors, agents and service partners.
You can now discover tools, agents and expert partners on Claude Marketplace. Use it to: - Add connectors and plugins like Slack and Notion -…
Excerpt from XClaudeDevs explains its work to improve the website’s performance.
We made claude.ai 3x faster in two weeks. Here’s how we use Claude to measure, debug and improve performance. Prompts and methods included. https://t.co/mgvK8mJRuD
Anthropic says Claude found a previously undescribed enzyme system
Claude agents searching a DNA database flagged a reverse-transcriptase system linked to CRISPR-like repeats; human scientists then began testing it in the lab. A preprint is on bioRxiv.
Source: Anthropic
A practical Opus 5.5 guide covers task handoffs and long-running work.
Try these in your first Opus 5.5 session: → Hand over a whole task. Define "done" and when to check in. → Drop "think carefully".…
Excerpt from XAn Opus experiment reconstructs the setting of Apollo 8’s Earthrise photograph.
A recreation of the moment Apollo 8’s Earthrise photograph was taken, using image cues and public data. pic.twitter.com/OZRD0R7cfB
Early Opus 5.5 experiments include a watermelon story.
A thread of early explorations with Claude Opus 5.5: A short story about a watermelon created by @kevin_t_ngo . pic.twitter.com/v48srlNi7V
Anthropic releases Claude Opus 5.5
The first Claude 5.5 model performs at the level of Claude Fable 5.1 on most work, according to Anthropic, and costs 40% less to run than Opus 5.
Source: Anthropic
Claude describes external evaluations and alignment testing for Opus 5.5.
Opus 5.5 is our first model since we called for pacing the frontier. As with previous models, it was tested by external evaluators before release,…
Excerpt from XClaude announces Opus 5.5 as the first model in its new family.
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,…
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