Topic
7 posts tagged “Claude”.
Chisato · · 5 min read Anthropic released Claude Opus 5.5 on Sept 22, priced 20% below Opus 5 with Fable-class benchmarks and roughly 40% lower cost on agentic coding tasks.
Chisato · · 6 min read Anthropic says Claude agents produced the first complete, machine-checked proof of Fermat's Last Theorem in Lean — 13M lines of code in about 11 days.
Chisato · · 6 min read Anthropic released Claude Fable 5.1 and the vetted-only Mythos 5.1, cutting cache-read prices 75% and up to 45% off agentic workloads. What changed.
Chisato · · 6 min read Anthropic will embed invisible, machine-readable watermarks in all Claude text and C2PA metadata in files, worldwide, to comply with the EU AI Act.
Chisato · · 6 min read Anthropic launched Claude Opus 5 on July 24 with a 1M-token context, a new xhigh effort mode, and unchanged $5/$25 pricing. Benchmarks, specs, and what changed.
Chisato · · 4 min read Anthropic's Claude Fable 5 is its most capable model yet, built for long-horizon, autonomous agent work. Here's what's new, what it costs, and when to use it.
Chisato · · 3 min read Looking for Claude Sonnet 5? Here's the honest answer — plus a clear map of Anthropic's 2026 models: Haiku 4.5, Sonnet 4.6, Opus 4.8, and the new Fable 5.
