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Claude product updates
209 articles
Claude Fable 5.1 and Claude Mythos 5.1 launch
We just launched Claude Fable 5.1 and Claude Mythos 5.1, the world’s most advanced models for coding and knowledge work. For more information, see our blog post: Claude Fable 5.1 and Mythos 5.1.
Anthropic Unveils Claude Fable 5.1 and Claude Mythos 5.1
Anthropic's official account @claudeai announced two new models, Claude Fable 5.1 and Claude Mythos 5.1, via X. The company described them as the world's most advanced models for coding and knowledge work.
Anthropic Opened Real Claude Usage Data to Outside Researchers — Here's What They Found
Anthropic ran a pilot letting Stanford and Oxford research teams independently study real Claude conversation data for the first time. Here's what they found about how much high-stakes work people delegate to AI, and how Claude's tone affects user emotion.
Anthropic Updates Roundup - 2026/08 (7 items)
A monthly roundup of 7 Anthropic updates in 2026/08
Claude Code 2.1.252
- Fixed Bash commands failing with "task output swap refused (tasks dir moved or linked)" on some Macs - Fixed "always allow" not saving in a project that has no .claude/settings.local.json yet - Fixe
Claude Code Weekly Usage Limits Cut by 17%, Anthropic Says More Changes Coming
Anthropic's official X account @ClaudeDevs announced that Claude Code's weekly usage limits will be reduced by 17% compared to today. The account also said it is working on changes to give users more visibility and control over their usage.
Claude Code Permanently Raises Weekly Limits by 25% Starting September 14
Anthropic's official @ClaudeDevs account announced that starting September 14, standard weekly limits in Claude Code will be permanently raised by 25% for Pro, Max, Team, and seat-based Enterprise plans. Until then, the current 50% increase remains in place.
Claude Code 2.1.251
- Added `PreModelSwitch` and `PostModelSwitch` hook events (block, confirm, or annotate a model switch); `SessionStart` resume hooks now receive session staleness and the estimated re-cache cost - Add
Claude Code and Cowork Errors — Aug 29 Outage: Status and What to Do
Elevated errors hit Claude Code and Claude Cowork in the early hours of August 29 (KST), now resolved. Official timeline (02:22 identified, 03:21 mitigated, 05:21 resolved), scope, and what to do.
You can now create personal keys and service account keys in the Claude Console.
You can now create personal keys and service account keys in the Claude Console. They act as you or as a service account, with the same permissions, and stop working when the linked account is removed
Claude Code 2.1.248
- Added `--restricted` (or `CLAUDE_CODE_RESTRICTED=1`): removes the built-in tools that run commands or code and `WebFetch` (unless named in `--tools`), keeps file tools inside the working directory,
Claude Code 2.1.250
- Bug fixes and reliability improvements
The Admin API is now available in the ant CLI and the Python, TypeScript, C#, Go
The Admin API is now available in the ant CLI and the Python, TypeScript, C#, Go, Java, PHP, and Ruby SDKs under client.beta.organization. They cover organization info, members, invites, workspaces an
Claude Code 2.1.247
- Added the `SendFeedback` tool: when something goes wrong in a session, Claude can draft a feedback report for you to review and send from `/feedback` (turn off with the `feedbackDrafts` setting) - A
Claude in Chrome Is Generally Available — No More Approving Every Step
Anthropic announced Claude in Chrome's general availability on August 26. It's on every paid plan, and Claude can now act in the browser without step-by-step approval — with a safety classifier checking each action first. Here are the published prompt injection numbers.
Claude Cowork Gets a Built-In Browser — Nothing to Install, Separate From Yours
Anthropic announced Cowork's built-in browser on August 26. Claude's own browser opens in a side panel and handles web tasks — it never sees your tabs or passwords. Here's how login import works, why the desktop app must stay open, how approval modes affect usage, and what to watch out for.
Claude Introduces Unified Memory Across Chat and Cowork
Anthropic's official account @claudeai announced on August 25, 2026 that Claude now shares one memory across chat and Claude Cowork. Handing a task to Cowork now starts from what was already discussed in chat, such as a project or preferences. Users decide what goes into that memory.
Claude Code 2.1.246
- Added a startup warning for Bash allow rules with a wildcard before the subcommand (e.g. `Bash(git * main)`), since they also match options inserted before the subcommand - Added an Auto mode tab to
Memory in Claude Cowork, editable topics, and a sensitive topics setting
Memory now works across chat and Cowork in the cloud. Everything Claude remembers is listed under Topics in Settings > Memory, where you can edit or delete any item. Topics such as health or beliefs s
Claude Memory Update: One Memory Across Chat and Cowork, Sensitive Topics Opt-In
Anthropic announced a major Claude memory update on August 25. Chat and Cowork now share one memory, memory is a set of files you can read, edit, and delete, and you choose whether sensitive topics like health or beliefs get saved.
Claude Code 2.1.245
- Fixed a crash on startup on Linux distributions that ship glibc 2.44 (for example Arch Linux, CachyOS and Fedora Rawhide)
Claude Code 2.1.243
- Added a Loops breakdown to `/usage`: per-loop run count, total tokens, tokens per run, and last run, so runaway or chatty `/loop` tasks are easy to spot - Added `modelPicker` setting: curate the `/m
Claude Code 2.1.240
- Bug fixes and reliability improvements
Claude Code 2.1.241
- Bug fixes and reliability improvements
Anthropic Announces Reliability Improvements to Claude's Remote Control
Anthropic's official X account @ClaudeDevs shared a thread announcing reliability improvements to Claude's Remote Control feature. The team noted that users had named it the top thing they wanted fixed last month, prompting a focus on reliability work.
Claude Code 2.1.239
- Cost estimates (`/cost`, status line, `--max-budget-usd`) now include the 1.1× US-only-inference premium for data-residency workspaces - Added the one-time fullscreen renderer offer on Bedrock, Vert
Claude Files API Update Adds Expiration Control and 5x Higher Rate Limits
Anthropic's official @ClaudeDevs account announced an update to the Files API. The update adds an expires_in_seconds option, 5x higher rate limits (500 RPM), and 1 TB of storage per organization.
Claude Academy Launches with Free Courses and Tutorials
Anthropic's official account announced the launch of Claude Academy, offering free courses and tutorials for both AI newcomers and existing Claude users.
Claude Code 2.1.238
- Added a `keybindingFlavor` setting: set it to `"readline"` to make Ctrl+W in the prompt delete back to the previous whitespace, as in Bash; the default (`"classic"`) is unchanged - Plugin marketplac
The session viewer in the Claude Console has been redesigned with a timeline min
The session viewer in the Claude Console has been redesigned with a timeline minimap, a transcript grouped by model request, and an Inspector panel for session details and cost, raw events, per-tool s