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.
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.
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 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.
A step-by-step workflow for Claude Cowork's Record a Skill feature: record a repetitive task once while narrating, and Claude turns it into a reusable skill you can rerun on demand.
Claude Code artifacts now support public share links and multiplayer editing, and can be created from Claude Tag in Slack.
Anthropic has begun showing Claude subscription prices in Indian rupees across its website and mobile apps, its first move to localize pricing for its second-largest market after the US.
Anthropic is extending Claude Cowork to web and mobile, with background cloud execution that keeps tasks running after you close the app.
Claude Fable 5 is generally available again as of July 1, 2026: Anthropic's most capable widely released model for reasoning and long-horizon agents. What it is, the pricing, and the refusal-and-fallback change every builder must handle.
Anthropic is restoring Claude Fable 5 and Mythos 5 after the US lifted export controls on June 30. Timeline, the new identity and credit rules, and how to resume.
Anthropic launched Claude Science on June 30, 2026, a beta AI workbench that pulls a researchers scattered tools into a single agentic environment.
Anthropic launched Claude Sonnet 5 on June 30, 2026 as the new default model for Free and Pro, positioned close to Opus 4.8 at a lower price. Here is what changed, the tokenizer catch that resets your cost math, and how to switch your workflow.
Anthropic and Microsoft made Claude generally available in Microsoft Foundry, letting teams run Opus 4.8 and Haiku 4.5 inside their existing Azure identity, billing, and governance.