LLM/AI Changelog

Updated 18 Aug 2026

AI Platform Changes That Affect Brand Visibility

Every update to ChatGPT, Gemini, Perplexity, Copilot and Google Search can change how your brand appears in AI-generated answers. We track release notes, API changes and documentation updates across major LLM platforms so you don't have to.

Total Updates
81
Copilot
805
ChatGPT
451
Gemini
306
Claude
81
GoogleAI
32
Perplexity
27
Pinned Highlights · 8
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today May Jun Jul Aug 16 Apr 2026 · Claude — April 16, 2026 — Claude Opus 4.7 launch 21 May 2026 · Claude — May 21, 2026 — Claude now works with more security and compliance tools 28 May 2026 · Claude — May 28, 2026 — Claude Opus 4.8 launch 9 Jun 2026 · Claude — June 9, 2026 — Claude Fable 5 launch 12 Jun 2026 · Claude — June 12, 2026 — Fable 5 and Mythos 5 access suspended 30 Jun 2026 · Claude — June 30, 2026 — Claude Sonnet 5 launch 1 Jul 2026 · Claude — July 1, 2026 — Access to Claude Fable 5 and Claude Mythos 5 restored 24 Jul 2026 · Claude — July 24, 2026 — Claude Opus 5 launch
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📈Beyond announcements: claude.com has shipped 2,437 new pages since Apr 2026 — see the live site-growth tracker
51–81 of 81 updates
Claude 24 Nov 2025 claude_app

November 24, 2025 — Context window compaction

We’ve changed our context window functionality to enable infinite-length conversations (with some exceptions) and significantly reduce length limit errors by summarizing earlier messages when a chat approaches its context limit. Read more here:Understanding Usage and Length Limits.
Claude 24 Nov 2025 claude_app

November 24, 2025 — Claude in Chrome updates

Claude in Chrome is now available in beta to all Max plan subscribers. After months of testing, we're expanding access with the following updates:
Scheduled tasks: Set recurring browser tasks to run automatically on your schedule. Set it once and Claude handles it from there.Follow a plan: Approve Claude's plan, then let it execute the entire workflow independently within those approved boundaries, without asking for permission until it's done.Model selection: Choose between Haiku 4.5 for speed, Sonnet 4.5 for complex tasks, or Opus 4.5 for maximum reasoning power—switch anytime based on what you need.
Claude 23 Oct 2025 claude_app

October 23, 2025 — Claude’s memory on Max and Pro plans

Max plan users can now access Claude’s memory capabilities. This feature will roll out to Pro plans gradually over the next two weeks.
Claude 15 Oct 2025 claude_app

October 15, 2025 — Claude Haiku 4.5 launch

We released our fastest, most cost-efficient model – Claude Haiku 4.5. Our latest small model matches Sonnet 4’s performance on coding, computer use, and agent tasks.
Claude 15 Oct 2025 claude_app

October 15, 2025 — Claude in Chrome updates

Powered by Haiku 4.5:Claude in Chrome now defaults to Haiku 4.5 so it’s a faster, more responsive experience. You can always switch back to Sonnet 4.5.Claude handles image uploads for you:Give Claude an image and tell it where to upload, whether it’s an expense report, form attachment, or a picture upload.Show Claude exactly what you mean:Take a screenshot or drag to highlight specific parts of your screen. Point Claude to the exact button, field, or detail—much faster than describing complex layouts in words.
Claude 29 Sep 2025 claude_app

September 29, 2025 — Claude Sonnet 4.5 launch

We released our newest model, Sonnet 4.5. This is the best model in the world for real-world agents, coding, and computer use. Read our blog post here:Claude Sonnet 4.5.
Claude 29 Sep 2025 claude_app

September 29, 2025 — Creating and editing files with Claude for Pro plans and mobile

Pro users can now leverage Claude’s file creation and editing capabilities, and users on all paid plans can access these features on Claude for iOS or Android. See this updated article for more information:Create and edit files with Claude.
Claude 29 Sep 2025 claude_app

September 29, 2025 — Claude in Chrome updates

The remaining Max users on our waitlist were granted access to Claude in Chrome, along with the following updates:
Powered by Sonnet 4.5:Claude in Chrome now defaults to Sonnet 4.5, our smartest model yet. Improved for browser tasks, you'll notice better reasoning, fewer errors, and more reliable task completion—especially for multi-step workflows.Work across multiple tabs:Claude can now juggle multiple browser tabs at once. Just drag tabs into Claude's tab group and it can see and work across all of them simultaneously—no more jumping back and forth to gather information before taking action.Smarter on the sites you use every day:Claude now understands how to navigate Slack, Google Calendar, Gmail, Google Docs, and GitHub without you having to direct every click. Ask Claude to "schedule a meeting" or "update the doc" and it knows what to do—no need to walk it through every step. We’re continuing to improve Claude’s understanding of other popular sites.Get notified when Claude needs you:Turn on notifications and Claude will ping you when it needs your permission or when a task is complete. Now you can switch to other work while Claude handles things in the background.Show Claude exactly what you mean:Upload images or take screenshots of specific screen areas to give Claude precise visual context. Much faster than describing what you're looking at.
Claude 18 Sep 2025 claude_app

September 18, 2025 — Claude’s memory on Enterprise plans

Users on Enterprise plans can leverage memory; Claude can now remember relevant context from your chats and generate a memory summary. Incognito chats give you a way to exclude conversations from Claude’s memory. Refer to the following articles for more information:
Using Claude’s chat search and memory to build on previous contextImporting and exporting your memory from ClaudeUsing incognito chats
Claude 16 Sep 2025 claude_app

September 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)./slash commands:Save your best-working prompts as shortcuts (/slash commands) and reuse these proven workflows instantly without retyping instructions to Claude.Contextual prompt suggestions:Claude in Chrome gives contextual prompt suggestions or helpful tips based on what website you’re on.
Claude 11 Sep 2025 claude_app

September 11, 2025 — Claude’s memory on Team plans and incognito chats for free, Pro, Max, and Team plans

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:
Using Claude’s chat search and memory to build on previous contextImporting and exporting your memory from ClaudeUsing incognito chats
Claude 9 Sep 2025 claude_app

September 9, 2025 — Creating and editing files with Claude

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:
Create and edit files with ClaudeCreate and edit files with Claude to eliminate hours of busy work
Claude 3 Sep 2025 claude_app

September 3, 2025 — Location, maps, and calendar access on Claude for iOS and Android

Claude can now connect with iOS and Android apps to draft calendar events, help you find locations, and manage reminders (iOS only). See updates to the following two articles for more information:
Using Claude with iOS AppsUsing Claude with Android Apps
Claude 27 Aug 2025 claude_app

August 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 26 Aug 2025 claude_app

August 26, 2025 — Claude in Chrome

An experimental browser extension that allows Claude to read, click, and navigate websites alongside you. SeeGetting Started with Claude in Chrome.
Claude 21 Aug 2025 claude_app

August 21, 2025 — Admin controls for desktop extensions

Allows Team and Enterprise plans to enable/disable public desktop extensions and upload custom extensions. SeeAdmin Controls for Desktop Extensions.
Claude 21 Aug 2025 claude_app

August 21, 2025 — Making shared artifacts embeddable

Claude users with free, Pro, or Max plans can generate an embed code for any published artifacts.
Claude 20 Aug 2025 claude_app

August 20, 2025 — Premium seats with Claude Code for Team and Enterprise plans

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:
Purchasing and managing seatsUsing Claude Code with your Team or Enterprise plan
Claude 20 Aug 2025 claude_app

August 20, 2025 — Extra usage for Team and Enterprise plans

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. SeeExtra Usage for Team and Enterprise Plans.
Claude 15 Aug 2025 claude_app

August 15, 2025 — Ability to change monthly Team plan billing to annual

Allowing Team plan organizations with monthly billing to upgrade to annual billing. SeeHow to change your Team plan from monthly to annual billing.
Claude 12 Aug 2025 claude_app

August 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. See1M token context windowin our docs for more information.
Claude 11 Aug 2025 claude_app

August 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. SeeSearching past chats.
Claude 6 Aug 2025 claude_app

August 6, 2025 — Claude Code Security Reviews

Two new cybersecurity features were added to Claude Code:
/security-review commandGitHub Actions
Claude 5 Aug 2025 claude_app

August 5, 2025 — 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.Refer toModels overviewfor more specific information about Opus 4.1.
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationSet a default model for your organizationEnable US-only inference for your organization
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationUse Claude in Microsoft FoundrySet a default model for your organization
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationUse Claude in Microsoft FoundryModels, usage, and limits in Claude Code
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationUse Claude in Microsoft FoundryEnable US-only inference for your organization
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationUsing Claude in Microsoft FoundryModels, usage, and limits in Claude Code
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Claude 1 Aug 2025 claude_app

August 1, 2025 — Project Sharing

Enabled project permissions and sharing for Team and Enterprise plans. SeeOrganization-wide sharingfor more information.
Note:Refer toour docsfor historical release notes.
Related ArticlesHow up-to-date is Claude's training data?How large is the context window on paid Claude plans?Claude Code model configurationUse Claude in Microsoft FoundryClaude Enterprise consumption guide

Tracking what they’re building

Observed site activity — new pages appearing on each platform’s website, updated daily.

What is the LLM Changelog?

The LLM Changelog is a live, automated tracker that monitors release notes and documentation updates across the largest AI platforms — including OpenAI's ChatGPT, Google's Gemini, Perplexity AI, Microsoft Copilot and Google Search. Changes are crawled daily and presented in a single, searchable feed.

Why AI Platform Changes Matter for Brands

When AI models update their training data, adjust ranking signals or change how they cite sources, the brands and products they recommend can shift overnight. An API change to Gemini or a new feature in ChatGPT can alter which businesses get mentioned in millions of AI-generated responses.

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