Claude Fable 5 — What Anthropic’s New Model Can Do and Whether It’s Worth Your Attention
Anthropic has released Claude Fable 5 — the public, safeguarded version of its Mythos-class model. What it can do across code, documents and vision, what it costs (2× Opus 4.8), where its safety limits kick in, and how it stacks up against GPT-5.5, GPT-4.1, Gemini and Llama.
AI News Weekly Summary — June 1–7, 2026 | Microsoft Build, a White House AI Order, Anthropic’s S-1
At Build, Microsoft shows its own MAI models and reduces its reliance on OpenAI. The White House signs a new AI order, and Congress unveils the Great American AI Act with a three-year preemption of state laws. Anthropic files a confidential S-1, NVIDIA reveals the RTX Spark platform for Windows PCs, and Sysdig documents the first attack of its kind it has observed, run by an autonomous LLM agent.
Claude Opus 4.8 — What’s New in Anthropic’s Model: Dynamic Workflows, Effort Control, Pricing
Anthropic shipped Claude Opus 4.8 — 41 days after 4.7. What actually changes: Dynamic Workflows running hundreds of subagents, effort control, a cheaper fast mode, new API features and a model that fakes confidence less often. Pricing unchanged.
AI News Weekly Summary — May 25–31, 2026 | Anthropic at $965B, Claude Opus 4.8, an AI Encyclical
Anthropic closes a $65B Series H at a $965B valuation, valued above OpenAI. The same day, Claude Opus 4.8 launches with Dynamic Workflows. Pope Leo XIV unveils the first AI encyclical alongside an Anthropic co-founder. Mistral bets on industry.
AI News Weekly Summary — May 18–24, 2026 | Google I/O 2026, the Erdős Conjecture, Meta and 8,000 Layoffs
Google I/O 2026 shows Gemini 3.5 Flash, the multimodal Gemini Omni and the Gemini Spark agent, and adds a new $100 AI Ultra tier. An OpenAI model reportedly disproves an 80-year-old Erdős conjecture. Meta trained AI on the staff it is now firing (8,000). Trump pulls his AI safety order.
AI News Weekly Summary — May 11–17, 2026 | Gemini Intelligence, Uber vs Waymo, Anthropic $30B
Google's Android Show I/O Edition unveils Gemini Intelligence and Googlebooks. Google blocks the first AI-generated zero-day exploit. Uber deploys $10B+ into Waymo alternatives. Anthropic at a $30B annualised revenue run rate. OpenAI Deployment Company launches with $4B+.
AI News Weekly Summary — April 27 – May 3, 2026 | Big Tech Q1, Manus Blocked, Pentagon
Microsoft, Alphabet, Meta, Amazon, and Apple reported earnings; combined 2026 CapEx tracking ~$720B. China blocks Meta's Manus acquisition. OpenAI reportedly missed growth targets. Pentagon signs deals with 8 AI firms — Anthropic kept off the list.
AI Monthly Recap April 2026 — Mythos, GPT-5.5, $65B Anthropic, Manus Blocked
Anthropic in 30 days locks Mythos, ships Opus 4.7, secures up to $65B and 10 GW from Google and Amazon, kept out of part of the Pentagon contracts. OpenAI returns with GPT-5.5. Four Chinese frontiers in 14 days. Big Tech 2026 CapEx tracking ~$705–735B.
AI News Weekly Summary — April 20–26, 2026 | GPT-5.5, Google+Anthropic $40B, DeepSeek V4
OpenAI's GPT-5.5 reclaims the top of the leaderboards. Google commits up to $40B and 5 GW of compute to Anthropic. DeepSeek V4 cuts frontier inference cost 6x. Tesla Q1 beats but raises CapEx; Cybercab enters production.
AI News Weekly Summary — April 13–19, 2026 | Opus 4.7 vs Mythos, GPT-5.4-Cyber, NVIDIA Ising
Anthropic ships Claude Opus 4.7 and publicly concedes it trails the locked-down Mythos. OpenAI counters with GPT-5.4-Cyber for vetted defenders. NVIDIA open-sources its first quantum AI models. Microsoft builds its own OpenClaw.