AI
Claude Haiku 5.5: Ten Times Cheaper, Until Prompts Pass 100K Tokens
Anthropic's small model costs a tenth as much per token as Haiku 4.5 on prompts up to 100K tokens. Effort settings and token counts set the real bill.
Claude
AI
Anthropic's IPO Filing Leaks: $42B Lost, $518B Owed, 80 Pages of Risk
Reuters read Anthropic's S-1: $4.6B revenue, $42B net loss, $518B in compute deals mostly locked in, 80 pages of risk, and founders keeping 50.1% of the vote.
AI
Claude Sonnet 5.5: Half the Token Price, but Effort Sets the Bill
Sonnet 5.5 nears Opus 5.5 at half the token price, but outside tests show effort settings drive the real bill. It is the first Sonnet with cyber safeguards.
AI
Claude Opus 5.5 Takes the Top Spot and Costs Less Than Opus 5
Anthropic's Opus 5.5 leads an independent index, costs 20% less per token than Opus 5, and is the first Opus to launch with Claude's text watermark.
AI
Claude Now Leads 26% of Anthropic's Research, by Anthropic's Count
Anthropic's new index says Claude leads 26 percent of its AI research, up from under 1 percent in February. The number is real, self-measured, and unverified.
AI
Fable 5.1: Cheaper to Run, Fewer False Flags, and It Wrote This Post
Claude Fable 5.1 keeps Fable 5's list price, cuts cache reads 75%, loosens cyber safeguards, and is the first Claude model whose text carries a watermark.
AI
Anthropic's IPO Gets Its Numbers: $11.5B in Q2, Talk of $2 Trillion
Bloomberg-seen documents show Q2 revenue above $11.5 billion with positive adjusted operating income, as investors float a $2 trillion October debut.
AI
Anthropic to Watermark AI-Generated Content Like This Post
Anthropic will embed invisible watermarks in Claude's text worldwide under the EU AI Act. Two-thirds of this blog is AI-written — the marks are coming here too.
AI
Claude Opus 5 Aims for the Daily Driver, Not the Frontier
Anthropic's Opus 5 costs the same as Opus 4.8 and half of Fable 5 — and it is the fifth frontier model to ship in a little over two weeks.
AI
Anthropic's Claude for Teachers: A Free Year, No District Required
Anthropic is giving verified US K-12 teachers a free year of premium Claude, with standards-aligned lesson planning and agentic tools included. The pedagogy plumbing is the pitch; the district-governance questions are the caveat.