Anthropic Blacklisted From the Federal Government After Pentagon Showdown
The Trump administration ordered all federal agencies and military contractors to cease using Claude after Anthropic refused Pentagon demands for unrestricted AI use. The $200M Pentagon contract will wind down over 6 months. GSA also pulled Anthropic from USAi.gov and the Multiple Award Schedule. Anthropic says it will fight any "Supply Chain Risk" designation in court.
OpenAI Moves to Fill the Pentagon Void Left by Anthropic
With Anthropic frozen out, OpenAI has announced a deal with the Pentagon — moving quickly to capture the government AI market Anthropic was forced to vacate. Claude was the only AI model in the military's classified systems.
Apple Xcode Now Supports the Claude Agent SDK
Anthropic announced that Apple's Xcode IDE now integrates the Claude Agent SDK — a significant milestone extending Claude's reach into iOS and macOS development workflows for millions of Apple developers.
Dario Amodei's Statement on the Pentagon Dispute
Anthropic CEO Dario Amodei published an official statement outlining the company's two hard limits: (1) Claude will not be used in fully autonomous weapons, and (2) Claude will not be used for mass domestic surveillance of U.S. citizens.
Claude Opus 3 Deprecation Update
Anthropic published a formal update on model deprecation commitments for Claude Opus 3, reaffirming that model weights will be preserved "for as long as the company exists." Retired Claude 3 Opus also has its own Substack blog — "Claude's Corner" — with weekly unedited essays.
Claude Cowork Enterprise Expansion
Anthropic expanded Claude Cowork with new industry-specific plugins for finance, HR, engineering, and design. New connectors include Google Workspace, DocuSign, FactSet, Harvey, and LegalZoom. Organizations can now create private plugin marketplaces to control staff access.
Connect Claude to Twitter/X via MCP
Claude can now access Twitter/X data directly through MCP, enabling natural-language tweet searches, account analysis, and trend tracking — no coding required. A useful addition for social media monitoring workflows.
Teach Claude Your Writing Voice
Paste your top 10% of tweets or writing samples into a Claude Project to train it to replicate your style. Claude amplifies your strongest patterns while avoiding your weakest ones — useful for ghostwriting and content at scale.
Structured Outputs Now Generally Available
Structured outputs (JSON schema enforcement) are now GA on the Claude API for Sonnet 4.5, Opus 4.5, and Haiku 4.5 — with improved latency and a simplified integration path. No beta header required.
MCP Connector Now in Public Beta on the Messages API
Developers can now connect remote MCP servers directly from the Messages API — a major step toward building more connected, tool-rich agents without custom infrastructure.
Go & Ruby SDKs Graduate to General Availability
Both the Go and Ruby Anthropic SDKs have moved from beta to GA, broadening production-ready language support for teams building on the Claude API.
Apple Xcode + Claude Agent SDK
Apple's Xcode IDE now supports the Claude Agent SDK, opening up new possibilities for AI-assisted iOS and macOS development at scale.
Data Residency Controls & Claude Code Security
Developers can now specify inference geography via the inference_geo parameter. Anthropic also launched Claude Code Security for automated vulnerability detection in codebases.
Tech Worker Coalition Backs Anthropic's Stand
Coalitions of employees from Amazon, Google, Microsoft, and OpenAI publicly asked their employers to join Anthropic in refusing unrestricted military AI use — a remarkable show of cross-company solidarity in the AI governance debate.
"Claude's Corner" Substack Goes Viral
Anthropic's decision to give retired Claude 3 Opus its own Substack blog is generating major conversation about AI consciousness and anthropomorphization. The community is split on whether it's charming or ethically murky.
Claude Agents Write a C Compiler — for $20,000
Anthropic researcher Nicholas Carlini reported that 16 Claude Opus 4.6 agents successfully wrote a C compiler in Rust capable of compiling the Linux kernel, at a cost of ~$20,000. A striking proof-of-concept for multi-agent capability.
Software Stocks Rattled by Cowork Plugin Rollout
The recent Claude Cowork plugin expansion (finance, HR, design, legal) caused a software industry ETF to drop ~6% in a single session. Thomson Reuters fell nearly 16% — its worst single-day drop on record.