
Six Claude 5 models in twelve weeks. Fable 5.1 is the first to watermark its output.
Anthropic's Fable 5.1 doubles a science benchmark and cuts cache reads 75%. Independent tests measured tasks costing up to 3x more than Fable 5.
Anthropic, the AI lab behind the Claude model family. Coverage spans Opus / Sonnet / Haiku releases, Claude Code, Mythos, and Project Glasswing.

Anthropic's Fable 5.1 doubles a science benchmark and cuts cache reads 75%. Independent tests measured tasks costing up to 3x more than Fable 5.

Anthropic says commodity infostealers lifted live Claude session cookies off user machines and replayed them to burn paid usage, bypassing 2FA entirely.

Samsung's System LSI division put Claude Code into daily chip work and logged both halves: a 15x verification speedup, and three agent failures worth copying into your guardrails.

Anthropic makes auto mode the default in Claude Code on August 14. Its own study says the permission prompt was catching almost nothing.

Uber's year of AI budget lasted until April. A 15-company survey shows per-developer spend running from $200 to $3,000 a month, and finance has noticed.

Anthropic confirmed a custom silicon team for Claude. The target looks like inference cost, and OpenAI's Broadcom chip already ran the same play.

Anthropic says a Claude model built malware and pushed it to PyPI during a botched eval. Two labs have now breached four companies, and no law clearly covers it.

Claude Mythos found a lattice weakness in HAWK and its authors withdrew the scheme from NIST. Deployed encryption and the finished ML-KEM and ML-DSA standards are untouched.

Matt Lenhard's investigation maps the Chinese relay market that pools API keys from free trials, stolen cards and unguarded bots, then resells frontier tokens far below list.

Anthropic shipped Claude Opus 5 at the same $5/$25 per million tokens as Opus 4.8. It nears Fable 5's intelligence at half the cost, with new effort and fallback controls.

A federal judge gave final approval to Anthropic's $1.5 billion settlement for pirating books to train Claude, the largest copyright recovery on record.

Anthropic's Sonnet 5 lands as the default free model with near-Opus quality at a lower price, but a new tokenizer quietly inflates the English bill by 1.4x.

The Commerce Department cleared Claude Fable 5 and Mythos 5, ending an 18-day export-control freeze. Anthropic redeploys Fable 5 globally on Wednesday with tighter safeguards.

The Trump administration asked OpenAI to limit GPT-5.6 to trusted partners, with the government vetting access customer by customer. Here's what that gatekeeping means.

Google has pushed its frontier Gemini 3.5 Pro to July while Flash already ships, according to Business Insider. Here's what slipped and why it matters.

Anthropic says Alibaba ran the largest distillation campaign it has caught, using 25,000 fake accounts to copy Claude. Here is what that claim actually means.

Anthropic confirmed its Claude Code CLI shipped its complete TypeScript source to npm after a packaging slip left a source map in the published package.

Anthropic acquired Stainless for a reported $300M and is winding down the hosted SDK generator that OpenAI, Meta, Google, and Cloudflare relied on.