Anthropic added two sentences to Claude Code on Opus 5.5 so it stops recreating specific existing games. We sent it 16 game requests: it built 14, renamed every famous one, and refused a Mario level.
Anthropic renamed Max 20x to Ultra and removed its 5-hour limit for verified accounts. Pro, Max and Ultra all cost $20 per unit of weekly usage, so the choice is about room, not price.
Anthropic launched Claude Duet on October 21, 2026: a proactive agent app that briefs you each morning, works in its own cloud computer and asks before it sends, pays, signs or deletes. Here is how it compares with OpenAI dots, Meta Muse and Grok Bot.
Anthropic launched Claude Motion in beta on October 8, 2026: describe a chart or explainer, and Claude builds an editable animation you export as an MP4. It is on Team and Enterprise plans only, so it starts at $50 a month.
Claude Haiku 5.5 launched October 7 at $0.10 in and $0.50 out per million tokens, 90% under Haiku 4.5 for most jobs. Here is what that means per podcast show note, caption and browser chore, and when to pick Sonnet 5.5 instead.
Comfy Agent launched October 1 on Comfy Cloud and bills Claude Opus 4.8 tokens at exactly Anthropic's list price. Priced from the agent's own recorded turns, a build-and-run turn costs $0.86 before GPU time, and local ComfyUI builds compile the agent out.
Claude Sonnet 5.5 costs half of Opus 5.5 per token and beats it on Terminal-Bench 4.0. At max effort, Artificial Analysis measured $7.60 per task against Opus 5.5's $5.98. Here is how effort decides your bill, and the five breaking changes to fix first.
Anthropic made Claude Code cloud sessions generally available on September 23, with a one-time $100 credit on Pro and $250 on Max. The VM is free; the credit pays for model usage, and on Opus 5.5 it goes less far than it sounds.
Anthropic cut Opus pricing 20% and took the number one spot on the Artificial Analysis index. The line that will actually change your bill is the effort default, which dropped from high to medium.
Anthropic merged Claude Cowork into Claude chat on September 16, 2026, closing an eight-month split between its conversational assistant and its agentic workspace, and added Claude Docs and Claude Slides as betas.
OpenAI released the Agents API in public beta on 10 September 2026, a managed Codex harness that runs the agent loop for you. Anthropic shipped the same shape five months earlier.
Anthropic shipped four Claude Code releases in five days. Together they let the agent run unattended in CI and report which skills are burning context for nothing.
Anthropic published the first complete computer-checked proof of Fermat's Last Theorem on September 4, 2026. Claude wrote it largely on its own across 11 days, producing about 13 million lines of Lean.
Anthropic shipped version 1.30.0 of its ant CLI on September 3, 2026, and the headline addition is a single command. ant apply creates and updates agents, environments, skills, memory stores, and scheduled deployments from plain files in your repository.
Claude Mythos 5.1 is the same model as Fable 5.1 running with more permissive safeguards, available only through vetted cybersecurity and life sciences programmes.
Anthropic released Claude Fable 5.1 on September 1, 2026. Headline pricing did not move, but cache reads dropped from $1.00 to $0.25 per million tokens, a 75 percent cut worth up to 45 percent on agentic workloads.
Anthropic has added a built-in browser to Claude Cowork, its agentic desktop app, so Claude can open websites, click links, and fill forms on its own. Announced August 26, 2026, it stays separate from your personal browser.
Anthropic unified Claude's memory across Chat and Cowork so context carries between both surfaces, on by default across Free, Pro, and Max, with per-topic controls and sensitive-topic exclusions.
Anthropic moved four agent building blocks to general availability on the Claude Platform on August 20, 2026: computer use, a new browser use tool, the Skills API, and the Files API.
Anthropic turned the Claude Chrome extension into a full Cowork session on August 12, 2026, with shared history, skills, and cross-device handoff.
On August 11, 2026, Anthropic began embedding invisible watermarks in all Claude text and C2PA provenance metadata in files to meet the EU AI Act. Here is what it means for creators.
Anthropic makes Claude Code auto mode the default on Aug 14. A close read of the safety data, the Codex injection gap, and the residual risk.
Claude Opus 5 launched July 24, 2026 at the same $5/$25 pricing as Opus 4.8, but Anthropic says it more than doubles 4.8's performance and undercuts Fable 5 on cost per completed task.
Anthropic raised Claude Managed Agents from 20 to 500 skills per session and added five-tier effort controls, making a single agent able to hold a whole knowledge base.