Anthropic: AI Security and Tool Analysis

2026-07-02 | Fable 5 Returns as Claude Sonnet 5 Becomes Default Fable 5 is back with tighter safeguards while Sonnet 5 becomes Claude's default. Here is the practical routing and cost decision.
2026-07-01 | Claude Sonnet 5 Guide Claude Sonnet 5 pricing, 1M context, API migration changes, tokenizer cost implications, availability, and source-labeled launch evidence.
2026-06-27 | Frontier Model Access: Fable, Mythos, GPT-5.6 Fable 5 is restored globally, while Mythos 5 and GPT-5.6 remain approval-sensitive. These are different access mechanisms, not one licensing regime.
2026-06-26 | Claude Opus 4.8 Baseline Guide Claude Opus 4.8 is the active premium Claude baseline for hard coding review, architecture, and arbitration, with current independent evidence.
2026-06-11 | Claude Fable 5 Restored: Cost and Guardrails Fable 5 returned globally July 1. Compare its $10/$50 API price, temporary plan access, safeguards, retention, and practical alternatives.
2026-05-21 | AI Coding Subscription Limits: May 2026 May 2026 coding-limit snapshot. Current discovery routes Kimi K3 as the newest flagship and K2.7 Code as the cheaper coding API.
2026-05-03 | Smart Spend Guide July 2026 AI value-stack guide: test Claude Sonnet 5 before Opus API prices, keep GLM-5.2 as the low-cost supported-tool lane, and treat Kimi K3 as a measured escalation.
2026-04-01 | Claude Code Leak: The Hidden Features That Escaped, and What Builders Should Actually Care About The Claude Code leak exposed hidden features, but the deeper lesson is operational: package artifacts can leak product boundaries, internal experiments, and roadmap intent.
2026-03-02 | OpenClaw Provider Policies: Which APIs Allow It Fact-checked comparison of AI provider policies on OpenClaw usage. Evidence-based analysis of Anthropic, Google, OpenAI, Kimi, and 10+ providers with risk ratings and migration guidance.
2026-03-02 | OpenClaw Provider Policy Check 2026: Complete Guide Find out if your AI provider allows OpenClaw usage. 10-second status check for Anthropic, Google, OpenAI, Kimi, and 10+ providers with migration paths if you're at risk.
2026-02-25 | AI Provider Military Use Policies: Comparison Matrix Evidence-based comparison of AI provider military use policies. Updated February 28, 2026: Anthropic formally blacklisted; OpenAI signed classified network deal with same safety redlines DOD rejected from Anthropic.
2026-02-25 | Anthropic Blacklisted by Pentagon: What Happened Anthropic was formally designated a 'supply chain risk' and blacklisted from all U.S. government work on February 27 — hours before OpenAI announced a Pentagon deal containing the same safety redlines Anthropic was punished for holding.
2026-02-24 | Anthropic API Policy: OpenClaw Verification Verification of Anthropic terms regarding third-party agent tools like OpenClaw. Evidence-based analysis showing Anthropic explicitly bans OAuth token usage in external tools.
2026-02-19 | Anthropic OAuth Policy Feb 2026: What Changed Anthropic's official Claude Code compliance docs explicitly prohibit OAuth tokens in third-party tools, including the Agent SDK. Here's what's new, why OpenCode broke, and where the OSS ecosystem goes next.
2026-02-17 | UltraThink → UltraQuiet: Why Devs Want Receipts Claude Code started hiding file paths and search details behind Ctrl+O. Here's a working fix: the AGENTS.md Audit Ledger pattern.
2026-02-13 | Claude Opus 4.6 Extra Use: $50 Free Credits (Ends Feb 16) Urgent: Anthropic is giving away $50 in free Opus 4.6 credits until Feb 16. Plus how to save 50% with batch processing for non-urgent workloads.
2026-02-07 | AGENTS.md: One File That Makes Agents Behave A practical guide to AGENTS.md and CLAUDE.md—why they work, how to write them, and copy-paste templates for Markdown projects, Python, and TypeScript.
2026-02-07 | AGENTS.md: What Actually Works (And What Doesn't) Evidence-based guide to writing AGENTS.md files that AI agents actually follow. Lessons from Vercel's evals, multi-tool testing, and production usage across Python, TypeScript, and documentation projects.
2026-02-03 | Claude vs OpenAI API Pricing: Opus, GPT-5.5, Fable July 2026 Claude vs OpenAI API pricing with Sonnet 5, Opus 4.8, restored Fable 5, GPT-5.5, and restricted GPT-5.6 preview context.
2026-01-30 | Claude Opus 4.5 Historical Guide Historical Claude Opus 4.5 guide with current routing notes. Compare Sonnet 5, Opus 4.8, restored Fable 5, and GPT-5.5 before buying premium capacity.