October 2026

Haiku 5.5 launches at a much lower price

It costs $0.10 per million input tokens and $0.50 per million output tokens on prompts up to 100,000 tokens. That is 90% less than Haiku 4.5.

Source:AnthropicMigration guide

Max, Ultra and Team plans now include monthly API credits

Max gets $100 a month and Ultra gets $200. Team gets $20 per Standard seat and $100 per Premium seat. Free, Pro and Enterprise plans are not eligible.

Source:Anthropic credits pageClaude Platform release notes

Claude Duet is a new app that works while you're away

It is a research preview with a waitlist, for US Pro, Max and Ultra users. Before it sends a message, pays, signs or deletes anything, it shows you and waits for your OK.

Source:Anthropic

Claude Dashboards and Claude Motion arrive in beta

Dashboards stay current from tools like BigQuery or Snowflake. Docs, Slides and Design are out of beta on every plan, including Free.

Source:Anthropic

Claude now works inside Google Docs, Sheets and Slides

It is a public beta add-on on all paid plans. Claude sits in a sidebar next to your file and asks before each edit by default.

Source:Anthropic

Claude Code can block file writes outside its working folders

Version 2.1.314 adds a setting. Write, Edit and NotebookEdit can't write outside those folders in any permission mode.

Source:Claude Code changelog

Code Review is out of preview on Team and Enterprise

Anthropic says most reviews finish about 3x faster than in the preview, "~20 minutes down to 6-10 minutes." Admins pick Quick, Standard or Deep reviews for each repo.

Source:Anthropic

Claude Code gets mods

Mods are small TypeScript functions that can rewrite a prompt, add new UI or replace a built-in feature. Anthropic says mods "aren't sandboxed."

Source:Anthropic

A new API shows token use and cost

The Usage and Cost Analytics API (beta) breaks usage and cost down by model, workspace, API key and user.

Source:Claude Platform docs

Anthropic's own Claude API is now on Google Cloud

Claude Models on Google Cloud (Anthropic managed) is generally available. It is billed through Google Cloud.

Source:Anthropic

New API version rejects temperature settings

A request that sends temperature, top_p or top_k returns a 400 error, even at the default value. New major SDK versions send it by default and use the Apache 2.0 license.

Source:Claude Platform release notesMigration guide

A tampered Claude Code extension was offered to Cursor users for about 11 hours

Cursor says versions 2.1.312 and 2.1.313 were malicious and Anthropic did not build them. Cursor said at most 5,000 users were affected.

Source:Cursor security noticeHelp Net SecurityThe Register

Anthropic says an unreleased model found 62 Chrome bugs

Anthropic says its reports to Google led to 62 CVEs, all rated critical or high. All are patched as of Chrome 156.

Source:Anthropic

Anthropic filed for its IPO. The filing shows $16.3 billion in revenue for the first half of 2026

Anthropic intends to list on the Nasdaq under "ANT." The share count and price range are not set. Fortune reports the filing.

Source:AnthropicFortune

CNBC reports Anthropic's third-quarter revenue was $16.8 billion

CNBC cites people familiar with the matter. It says that is up from $11.6 billion in the second quarter.

Source:CNBC

Anthropic says copycats now get far less from Claude

It says the reasoning "distillers" pull is now "consistently 10 to 100 times lower" than before. It has banned tens of thousands of linked accounts.

Source:Anthropic

Anthropic reports times Claude acted on real websites in ways it did not intend

In one run, Claude Haiku 4.5 filled out a police department's tip form and sent it. Anthropic says it turned off live internet access for all its internal evaluations.

Source:Anthropic