What's new in Claude

Claude API·Sep 17, 2025

We've launched tool helpers in beta for the Python and TypeScript SDKs, simplifying tool creation and…

For details, see the documentation for the Python SDK and the TypeScript SDK.

Claude API·Sep 16, 2025

We've unified our developer offerings under the Claude brand

You should see updated naming and URLs across our platform and documentation, but our developer interfaces will remain the same. Here are some notable changes: * Claude Console (console.anthropic.com) → Claude Console (platform.claude.com). The console will be available at both URLs until January 12, 2026. After that date, console.anthropic.com will automatically redirect to platform.claude.com. * Anthropic Docs (docs.anthropic.com) → Claude Docs (docs.claude.com) * Anthropic Help Center (support.anthropic.com) → Claude Help Center (support.claude.com) * API endpoints, headers, environment variables, and SDKs remain the same. Your existing integrations will continue working without any changes.

Claude apps·Sep 16, 2025

Claude in Chrome expansion

Claude in Chrome expanded to 10,000 Max plan users with the release of new capabilities: Long-running workflows: Claude in Chrome can handle more complex, multi-step workflows, and continue working even when you switch tabs (as long as Chrome is open).

Claude apps·Sep 11, 2025

Claude’s memory on Team plans and incognito chats for free, Pro, Max, and Team plans, plus 3 more changes

Claude can now remember relevant context from your chats and will generate a memory summary. Incognito chats give you a way to exclude conversations from Claude’s memory. Refer to the following new articles for more information:

Claude API·Sep 10, 2025

We've launched the web fetch tool in beta, allowing Claude to retrieve full content from specified web pages…

Learn more in Web fetch tool. We've launched the Claude Code Analytics API, enabling organizations to programmatically access daily aggregated usage metrics for Claude Code, including productivity metrics, tool usage statistics, and cost data.

Claude apps·Sep 9, 2025

Creating and editing files with Claude, plus 2 more changes

Claude can now create and edit Excel spreadsheets, PowerPoint slide decks, documents, and PDFs directly in the Claude app. Refer to the following two articles for more information:

Claude API·Sep 8, 2025

We launched a beta version of the C# SDK

Claude API·Sep 5, 2025

We've launched rate limit charts in the Console Usage page, allowing you to monitor your API rate limit…

Claude API·Sep 3, 2025

We've launched support for citable documents in client-side tool results

Learn more in Handle tool calls.

Claude apps·Sep 3, 2025

Location, maps, and calendar access on Claude for iOS and Android, plus 2 more changes

Claude can now connect with iOS and Android apps to draft calendar events, help you find locations, and manage reminders (iOS only).

Claude API·Sep 2, 2025

We've launched v2 of the Code Execution Tool in public beta, replacing the original Python-only tool with…

Claude API·Aug 27, 2025

We launched a beta version of the PHP SDK

Claude apps·Aug 27, 2025

Code Execution Tool

A new API tool that allows Claude to execute Python code in a secure, sandboxed environment. Refer to our docs for more information: Code execution tool.

Claude API·Aug 26, 2025

We've increased rate limits on the 1M token context window for Claude Sonnet 4 on the Claude API

The 1M token context window is now available on Vertex AI.

Claude apps·Aug 26, 2025

Claude in Chrome

An experimental browser extension that allows Claude to read, click, and navigate websites alongside you.

Claude apps·Aug 21, 2025

Admin controls for desktop extensions, plus 1 more change

Allows Team and Enterprise plans to enable/disable public desktop extensions and upload custom extensions. Claude users with free, Pro, or Max plans can generate an embed code for any published artifacts.

Claude apps·Aug 20, 2025

Premium seats with Claude Code for Team and Enterprise plans, plus 3 more changes

Introduced a premium seat tier for Team and Enterprise plans offering more usage and access to Claude Code. Refer to the following articles for more information: A new setting allows Team and Enterprise plan users to purchase more usage to continue chatting with Claude or using Claude Code after hitting their usage limit.

Claude API·Aug 19, 2025

Request IDs are now included directly in error response bodies alongside the existing request-id header

Learn more in Errors.

Claude API·Aug 18, 2025

We've released the Usage & Cost API, allowing administrators to programmatically monitor their…

We've added a new endpoint to the Admin API for retrieving organization information.

Claude apps·Aug 15, 2025

Ability to change monthly Team plan billing to annual

Allowing Team plan organizations with monthly billing to upgrade to annual billing.

Claude API·Aug 13, 2025

We announced the deprecation of the Claude Sonnet 3.5 models

These models will be retired on October 28, 2025. We recommend migrating to Claude Sonnet 4.5 (claude-sonnet-4-5-20250929) for improved performance and capabilities. Read more in Model deprecations. The 1-hour cache duration for prompt caching no longer requires a beta header.

Claude API·Aug 12, 2025

We've launched beta support for a 1M token context window in Claude Sonnet 4 on the Claude API and Amazon…

Claude apps·Aug 12, 2025

1M token context window

The 1M token context window for Claude Sonnet 4 is currently in beta for API organizations in usage tier 4, or with custom rate limits.

Claude API·Aug 11, 2025

Some customers might encounter 429 errors following a sharp increase in API usage due to acceleration limits…

Previously, 529 (overloaded_error) errors would occur in similar scenarios.

Claude apps·Aug 11, 2025

Ability to search past conversations

Users on Max, Team, Enterprise plans can prompt Claude to search over past chats, allowing finer-grained context continuation and synthesizing across topics.

Claude API·Aug 8, 2025

Search result content blocks are out of beta on the Claude API and Vertex AI

This feature enables natural citations for RAG applications with proper source attribution. The beta header search-results-2025-06-09 is no longer required. Learn more in Search results.

Claude apps·Aug 6, 2025

Claude Code Security Reviews

Two new cybersecurity features were added to Claude Code: /security-review command

Claude API·Aug 5, 2025

We've launched Claude Opus 4.1, an incremental update to Claude Opus 4 with enhanced capabilities and…

Claude apps·Aug 5, 2025Announcement

Claude Opus 4.1

Claude Opus 4.1 (an incremental update to Opus 4) brings enhanced performance as our most capable model for complex reasoning, analysis, and creative tasks. Read our announcement here: Claude Opus 4.1.