The blog.
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Claude Duet: What It Is and How to Get Access
Anthropic's Claude Duet is an always-on personal AI agent with its own virtual computer and browser, powered by Opus 5.5. Here's how it works, who it's for, and how to get on the waitlist.
Claude Projects: Cloud Multi-Agent Orchestration
Claude projects turns Claude into a cloud project manager that runs a fleet of full Claude sessions 24/7. Here's how to get access, when to use it, and how it beats sub-agents.
Claude Haiku 5.5: The Cheap, Fast Model Anthropic Was Missing
Claude Haiku 5.5 is roughly 75% cheaper than Haiku 4.5 and finally gives Anthropic a small, fast model that competes with OpenAI's cheap tier. Here's what the benchmarks, effort levels, and pricing actually mean for you.
Claude Mods: The Biggest Claude Code Upgrade Yet
Claude Mods let you rewrite, customize, and extend Claude Code itself. Here's how they work, two real mods in action, and the one audit prompt that builds your own.
GPT-6.1 Sol vs Sonnet 5.5: Which One Actually Wins?
OpenAI's GPT-6.1 Sol posts insane benchmarks at a fraction of the cost. I ran it head-to-head against Sonnet 5.5 across four real builds to see if the numbers hold up.
Claude Sonnet 5.5: Beats Opus at Coding, Half the Cost
Claude Sonnet 5.5 is 30% faster, 30% cheaper, and on one agentic coding benchmark it actually edges out Opus 5.5. Here's what the numbers mean for your day-to-day work.
Claude Opus 5.5: Fable 5.1 Performance at 40% Less
Claude Opus 5.5 matches Fable 5.1 performance at about 40% less cost. Here are the benchmarks, per-task pricing, and which effort level to actually use.
Fable 5.1 Watermarks: How AI Text Watermarking Actually Works
Fable 5.1 is the first Anthropic model to watermark everything it writes. Here's how the watermark actually works and the only real way to get around it.
Fable 5.1: Better Benchmarks, 25% Lower Cost
Fable 5.1 beats Fable 5, Opus 5, and GPT 5.6 Soul across the board while costing an estimated 25% less — up to 45% less on long-running agentic work. Here's everything that actually changed.
How to Cut Your Claude Code Token Costs by 20x
The single biggest lever on your Claude Code bill isn't a CLAUDE.md one-liner — it's understanding prompt caching. Here are five ways to stop overpaying for tokens.
Claude Opus 5 Benchmarks: Fable 5 Performance at Half the Cost
Claude Opus 5 matches Fable 5 on most benchmarks at half the cost, plus a massive jump over Opus 4.8. Here is what actually matters in the release.
Sonnet 5 vs Opus 4.8: Which Model Should You Use?
Anthropic's Sonnet 5 lands within a few percentage points of Opus 4.8 at less than half the cost. Here's the pricing, the benchmarks, and the real decision — when Sonnet 5 wins and when Opus is still cheaper.
