Anthropic folds Project Glasswing into a three-tier Cyber Verification Program
Anthropic merges Project Glasswing and its Cyber Verification Program into Defense, Red Team, and Specialized access tiers for Opus 5.5, Sonnet 5.5, and Mythos 5.1.
Amodei calls to pace the frontier — Altman and Musk publicly endorse
Anthropic commits to embedded external evaluators with employee-like access; Altman and Musk publicly endorse the three-step plan.
Anthropic previews the Model Hardware Standard for lab AI agents
Anthropic opens a research preview of the Model Hardware Standard, a driver spec for AI agents to run lab instruments. Built with HHMI Janelia and partners Genentech, UW, and CMU.
Claude text watermark: EU AI Act compliance
Anthropic details how future Claude models will embed a SynthID-Text-style watermark to comply with the EU AI Act, plus C2PA credentials for images and a detection API coming soon.
Anthropic Claude for Teachers: free K-12 access
Anthropic launches Claude for Teachers — free, verified K-12 access to June 30 2027, 50-state standards, 9 K-12 tools, Apache-2.0 skills, AFT + Gates partners.
Alberta scanned 466M lines of government code with Claude in 20 hours
Alberta's Ministry of Technology and Innovation scanned 466M lines of government code in 20 hours with Claude Code and ~50 agents — here is the playbook other provinces can copy.
Better Models, Worse Tools: Claude tool regression
Armin Ronacher's controlled tests show Claude Opus 4.8 and Sonnet 5 produce ~20% malformed tool calls against Pi's edit tool; older models are clean.
Anthropic redeploys Fable 5, proposes jailbreak framework
Anthropic restored Fable 5 and Mythos 5 access on 2026-06-30 after the US lifted its June 12 export controls, and proposed a four-dimension jailbreak severity framework with Amazon, Microsoft, and Google.
Sonnet 5 launches at $2/$10, nears Opus 4.8
Anthropic's Claude Sonnet 5 launches 2026-06-30 with intro pricing $2/$10 per MTok (→$3/$15 on Sep 1), a new effort-level API dial, and a near-Opus cost-performance curve.
US government gatekeeps OpenAI Sol and Claude Mythos 5
On 2026-06-26 OpenAI began a GPT-5.6 Sol preview with the customer list coordinated with the US government; the same day, Commerce lifted the export block on Anthropic's Claude Mythos 5.
Anthropic opens Seoul office with Korea AI safety MOU
Anthropic opened a Seoul office, signed an AI-safety MOU with Korea's Ministry of Science and ICT, and named five enterprise Claude deployments.
caveman: terse-output skill, 75k stars in 11 weeks
GitHub JuliusBrussee/caveman: a TypeScript skill for 30+ agent platforms that asks the agent to drop filler. 75k stars, MIT, 65% output-token reduction.
Instructor: Pydantic structured outputs for any LLM
MIT Python library (567-labs) for extracting validated Pydantic objects from any LLM. 13.2k stars, 108 releases, 15+ providers. v1.15.2 adds log redaction.
Anthropic's $150M Claude Corps fellowship
Anthropic commits $150M to a national fellowship: 1,000 early-career workers at $85K/year, 12 months at 400+ US nonprofits. Partners: CodePath, Social Finance.
Anthropic Seeks AI-Blocking Powers, Gets Blocked Instead
On June 10, 2026, Anthropic asked the US government for power to block dangerous frontier models. Two days later, that power suspended Fable 5 and Mythos 5.