LLM/AI Changelog

Updated 3 Oct 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
90
Copilot
854
ChatGPT
533
Gemini
323
Claude
90
GoogleAI
41
Perplexity
31
Pinned Highlights · 12
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today May Jun Jul Aug Sep Oct 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 1 Sep 2026 · Claude — September 1, 2026 — Claude Fable 5.1 and Claude Mythos 5.1 launch 22 Sep 2026 · Claude — September 22, 2026 — Claude Opus 5.5 launch 25 Sep 2026 · Claude — September 25, 2026 — Build plugins for Claude 28 Sep 2026 · Claude — September 28, 2026 — Claude Sonnet 5.5 launch
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📈Beyond announcements: claude.com has shipped 2,954 new pages since Apr 2026 — see the live site-growth tracker→
1–50 of 90 updates
Pinned Claude 28 Sep 2026 claude_app

September 28, 2026 — Claude Sonnet 5.5 launch

We just launched Claude Sonnet 5.5, the second model in our Claude 5.5 family. Sonnet 5.5 is a faster, lower-cost complement to Claude Opus 5.5. For more information, see our blog post:Introducing Claude Sonnet 5.5.
Brand Impact
Anthropic has launched Claude Sonnet 5.5, the second model in its Claude 5.5 family and a faster, lower-cost complement to Opus 5.5. Sonnet is the workhorse tier most apps, assistants and agents run by default, so a quicker, cheaper version at 5.5-family quality shifts far more everyday AI answers than a flagship launch. For brands, that raises the bar for which sources and names a capable model is willing to cite. Read our full analysis: https://reconn-ai.com/news/claude-sonnet-5-5-ai-visibility/
Pinned Claude 25 Sep 2026 claude_app

September 25, 2026 — Build plugins for Claude

You can now submit plugins to the Claude directory through a new developer portal, track them through review, and see usage analytics once they’re live. For more information, see our blog post:Build plugins for Claude.
Brand Impact
Anthropic has opened a developer portal for submitting plugins to the Claude directory, with review tracking, usage analytics and discovery analytics that show which searches lead people to a listing. For brands, this is a new, searchable discovery surface inside Claude where tools get found - but being listed does not change how Claude cites brands in its ordinary answers, which still come from the open web it reads and trusts. Read our full analysis: https://reconn-ai.com/news/claude-plugin-directory-ai-visibility/
Pinned Claude 22 Sep 2026 claude_app

September 22, 2026 — Claude Opus 5.5 launch

We just launched Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5. For more information, see our blog post:Introducing Claude Opus 5.5.
Brand Impact
On 22 September 2026, Anthropic launched Claude Opus 5.5, the first model in its new Claude 5.5 family. It performs at the level of Claude Fable 5.1 on most work while costing 40% less to run than Opus 5. The headline is efficiency: near-top-tier reasoning at a materially lower price. For brands, the visibility angle is indirect but real - cheaper frontier-class capability tends to become the default across apps, assistants and agents, so more of the answers people see come from a discerning model that is selective about the sources and brands it names. It is a model release, not a consumer feature. Read our full analysis: https://reconn-ai.com/news/claude-opus-5-5-ai-visibility/
Pinned Claude 1 Sep 2026 claude_app

September 1, 2026 — 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.
Brand Impact
On 1 September 2026 Anthropic launched Claude Fable 5.1 and Claude Mythos 5.1, which it calls its most advanced models for coding and knowledge work. Fable 5.1 is the generally available flagship, tuned for agentic, tool-using tasks and paired with much cheaper cache reads; Mythos 5.1 is the same model under restricted access for vetted cybersecurity and life-sciences organisations. Because Claude is a major answer engine, a stronger, cheaper-to-run flagship can reshuffle which brands it names in its answers, so brands should re-baseline their Claude visibility on 5.1 itself. Read our full analysis: https://reconn-ai.com/news/claude-fable-5-1-mythos-5-1-ai-visibility/
Pinned Claude 24 Jul 2026 claude_app

July 24, 2026 — Claude Opus 5 launch

We launched Claude Opus 5, a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price. For more information, see our blog post:Claude Opus 5.
Brand Impact
Anthropic has launched Claude Opus 5, a thoughtful and proactive model that it says comes close to the frontier intelligence of its flagship Claude Fable 5, at half the price. Because Claude is one of the major AI answer engines, a near-frontier model offered far more cheaply means the stronger model gets used across far more everyday questions. A more capable, proactive model researches and compares more thoroughly before it answers, which rewards brands with clear, consistent public evidence and filters out thin or contradictory ones. Any new model can also reshuffle which brands it names, so where your brand stands should be re-checked on Opus 5 itself. Read our full analysis: https://reconn-ai.com/news/claude-opus-5-ai-visibility/
Pinned Claude 1 Jul 2026 claude_app

July 1, 2026 — Access to Claude Fable 5 and Claude Mythos 5 restored

We are restoring access to Claude Fable 5 and Claude Mythos 5. Seeour statementfor more information.
Brand Impact
Anthropic has restored user access to two older versions of Claude (Fable 5 and Mythos 5) that were previously unavailable. This means users can now choose between multiple Claude versions, potentially including older models alongside newer ones. Brands and products may see different visibility depending on which Claude version a user selects, since older models may have different training data, recommendation patterns, or product knowledge compared to the latest version—potentially favoring established brands over newer competitors, or vice versa.
Pinned Claude 30 Jun 2026 claude_app

June 30, 2026 — Claude Sonnet 5 launch

We launched Claude Sonnet 5, our most agentic Sonnet model yet, with substantial improvements over Sonnet 4.6 in reasoning, tool use, coding, and knowledge work. For more information, see our blog post:Introducing Claude Sonnet 5.
Brand Impact
On 30 June 2026, Anthropic launched Claude Sonnet 5 — its most agentic Sonnet model yet, with substantial gains over Sonnet 4.6 in reasoning, tool use, coding and knowledge work. Sonnet is Claude’s workhorse tier, so this is the model most people and apps — including Microsoft 365 Copilot — actually talk to. When the model behind Claude changes, the brands and sources its answers name can change too, so treat it as a re-baseline moment for how your brand appears in Claude. Read our full analysis: https://reconn-ai.com/news/claude-sonnet-5-ai-visibility/
Pinned Claude 12 Jun 2026 claude_app

June 12, 2026 — Fable 5 and Mythos 5 access suspended

We've suspended access to Claude Fable 5 and Claude Mythos 5. We aim to return access as quickly as we can. Seeour statementfor more information.
Brand Impact
On 12 June 2026, Anthropic suspended access to Claude Fable 5 and Claude Mythos 5 for all customers, following a US government export-control directive — just three days after Fable 5’s general-availability launch. Anthropic says it could not reliably separate foreign nationals from US users in real time, so it disabled both models for everyone while it works to restore access. The default Claude experience reverts to the previous generation, Opus 4.8, until they return. Brand Impact: with Claude’s answers no longer coming from Fable 5, any visibility picture built on Fable 5 responses is now historical. Recommendations and citations in Claude are generated by Opus 4.8 again — worth re-baselining until Fable 5 and Mythos 5 come back. Read our full analysis: https://reconn-ai.com/news/claude-fable-5-mythos-5-suspended-ai-visibility/
Pinned Claude 9 Jun 2026 claude_app

June 9, 2026 — Claude Fable 5 launch

We launched Claude Fable 5, a Mythos-class model that we’ve made safe for general use. For more information, see our blog post:Claude Fable 5 and Claude Mythos 5.
Brand Impact
Claude launched a more powerful AI model called Fable 5 that's now available for general public use, making it more capable than previous versions. This wider availability means more users will interact with Claude for recommendations and advice, potentially increasing visibility for brands that Claude references or suggests. Companies that have been featured in Claude's training data or have strong positive online reputations may see increased mentions in user conversations, while lesser-known or poorly-reviewed brands could see decreased relative visibility. Read our full analysis: https://reconn-ai.com/news/claude-fable-5-ai-visibility/
Pinned Claude 28 May 2026 claude_app

May 28, 2026 — Claude Opus 4.8 launch

We’ve upgraded Claude Opus to a new version. Claude Opus 4.8 shows improvements over Opus 4.7 in coding, agentic skills, reasoning, and practical knowledge work tasks. For more information, see our blog post:Introducing Claude Opus 4.8.
Brand Impact
Claude's latest AI model (Opus 4.8) is now smarter at coding, reasoning, and handling complex work tasks compared to its previous version. This upgrade could affect brand visibility if companies rely on Claude for product recommendations, content creation, or customer service—the improved reasoning means Claude might surface different brands or products based on more accurate analysis of user needs. Brands whose products depend on technical accuracy or detailed problem-solving recommendations may gain advantage if Claude's enhanced capabilities better showcase their strengths. Read our full analysis: https://reconn-ai.com/news/claude-opus-4-8-ai-visibility/
Pinned Claude 21 May 2026 claude_app

May 21, 2026 — Claude now works with more security and compliance tools

We introduced Claude Compliance API integrations with notable security and compliance tools. Now IT and security teams can govern Claude across our platform and suite of products, the same way they govern other applications in their stack. Learn how toget started with Claude Compliance API integrations.
Pinned Claude 16 Apr 2026 claude_app

April 16, 2026 — Claude Opus 4.7 launch

Our latest model, Claude Opus 4.7, is now generally available. Opus 4.7 shows improvements in software engineering and complex, long-running coding tasks, as well as better vision, allowing it to see images in higher resolution. For more information, see our blog post:Introducing Claude Opus 4.7.
Brand Impact
Claude's AI assistant just got smarter at understanding images in greater detail and handling complicated software work. This means brands in tech, software, and visual products (like design tools, photography apps, or anything with complex imagery) may see their offerings recommended more often when users ask Claude for help with these tasks. Companies in other sectors might see slightly less visibility in these specific use cases, though Claude remains a general-purpose assistant for all types of questions.
Claude 16 Sep 2026 claude_app

September 16, 2026 — Claude Cowork comes to every conversation

We're rolling out a new Claude experience that makes everything Claude Cowork does available from any conversation. Ask a quick question or hand Claude a bigger task, like a report, spreadsheet, or presentation, without choosing a mode first. Your chats, Cowork tasks, projects, connectors, and skills carry over. The new experience is rolling out gradually to Pro and Max plans on web, desktop, and mobile. Learn more inClaude Cowork and chat are one Claude.
Claude 16 Sep 2026 claude_app

September 16, 2026 — Create designs, decks, and docs in any conversation

You can now ask for a design, deck, or document in any conversation with Claude, including in Claude Code and theArtifactstab, and edit it with Claude or directly as you work. Claude Design works inside your conversations with all of its features, including on-canvas editing and importing your design system. Claude Slides gives presentations their own starting point, and Claude Docs is a new way to write living documents with Claude and your team. Artifacts, including Claude Design, Claude Slides, and Claude Docs, are available on every plan, including Free. On Enterprise plans, Claude Design, Claude Slides, and Claude Docs are in beta and off by default until an owner turns them on. Learn more inWhat are artifacts and how do I use them?andGet started with Claude Docs.
Claude 15 Sep 2026 claude_app

September 15, 2026 — Launching Salesforce in Claude (beta)

We've launched Salesforce in Claude, a plugin that brings a seller’s accounts, opportunities, and pipeline into Claude with 37 pre-built sales skills. Prep a call, review a deal, create a pipeline dashboard, and send your forecast all from Claude. It’s now available in beta on all paid plans for organizations Salesforce approves through its beta sign-up. For more information, see our blog post:Bringing Salesforce into Claude.
Claude 10 Sep 2026 claude_app

September 10, 2026 — Smart reports (beta)

We’ve launched smart reports, which analyze how a team uses Claude and report on the work getting done, what it costs, where sessions run into friction, and which repeated patterns are worth packaging as shared skills. Smart reports are available in beta on Claude Enterprise plans. Learn more inGet started with smart reports.
Claude 25 Aug 2026 claude_app

August 25, 2026 — 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 underTopicsinSettings > Memory, where you can edit or delete any item. Topics such as health or beliefs stay out of memory unless you turn onInclude sensitive topics in memory. Memory is on by default for Free, Pro, and Max plans and off by default for Team and Enterprise organizations. SeeUse Claude's chat search and memory to build on previous context.
Claude 6 Aug 2026 claude_app

August 6, 2026 — Skill and plugin security scanning (beta)

Enterprise plans can now turn on skill and plugin security scanning to automatically check third-party skills and plugins for malicious content when someone uploads or edits them. For more information, seeGet started with skill and plugin scanning.
Claude 14 Jul 2026 claude_app

July 14, 2026 — HIPAA configuration for your Claude organizations is now self-serve

You can now manage HIPAA readiness for your Claude organizations yourself. This applies to both Claude Enterprise and the Claude Platform (API). In each product, an eligible admin can review the Business Associate Agreement (BAA), download the implementation guide, and enable the HIPAA configuration in a single flow. For more information, refer toHIPAA-ready Enterprise plansandHIPAA readiness for Claude API.
Claude 10 Jul 2026 claude_app

July 10, 2026 — Updated memory for Claude

Memory on Claude now works as a set of individual, categorized entries that Claude reads and updates during your conversations, replacing the previous daily memory summary. SeeUse Claude’s chat search and memory to build on previous context.
Claude 9 Jul 2026 claude_app

July 9, 2026 — A new way to reflect with Claude

Your monthly recap is a new feature atSettings > Reflectthat shows you the topics you spent time on, your most active day and peak hour, and observations about how you work with Claude. It's in beta on Free, Pro, and Max plans on the web and Claude Desktop, and requires memory to be on. Alongside it,Settings > Time and focuslets you set optional break reminders and quiet hours. For more information, refer toSee your monthly recapandSet break reminders and quiet hours.
Claude 7 Jul 2026 claude_app

July 7, 2026 — Claude Cowork on web and mobile

Claude Cowork is now available on web and mobile in addition to desktop. We are rolling this capability out over the next several weeks starting with the Max plan, with more plans to follow. Cowork runs your sessions remotely (in beta), so your sessions and files are saved to your Claude account and go where you go, on any device. Work continues when you close your laptop, and scheduled tasks run with no device online. Chat and Cowork also share one home now, with one place for your projects and artifacts across both. For more information, seeUse Claude Cowork on web, desktop, and mobile.
Claude 7 Jul 2026 claude_app

July 7, 2026 — Write tools for the Microsoft 365 connector

The Microsoft 365 connector now goes beyond search. With write tools enabled, Claude can draft, send, and organize email, manage calendar events, update mailbox settings, and create and update files in OneDrive and SharePoint. Read and search tools work as before, and Teams remains read-only. Before members can use write tools, a Microsoft Entra administrator needs to consent to the updated permission set and an admin needs to enable them for the organization. For more information, seeSet up the Microsoft 365 connectorandConnect to Microsoft 365.
Claude 1 Jul 2026 claude_app

July 1, 2026 — Model entitlements for Enterprise plans (beta)

Admins on Enterprise plans can now control what models their users have access to, and what effort level settings they can use. For more information, seeManage model access for your organization.
Claude 25 Jun 2026 claude_app

June 25, 2026 — Enable Trusted Devices for Remote Control

Admins for Team and Enterprise plans can now require members to verify their device before viewing or steering local Claude Code sessions remotely. For more information, seeTrusted Devices.
Claude 23 Jun 2026 claude_app

June 23, 2026 — Delegate work to Claude in Slack with Claude Tag

Team and Enterprise plans can now tag Claude directly in Slack conversations and delegate tasks to it while they focus on other work. For more information, see our blog post:Introducing Claude Tag.
Claude 12 Jun 2026 claude_app

June 12, 2026 — Access to Claude Fable 5 and Claude Mythos 5 suspended

We've suspended access to Claude Fable 5 and Claude Mythos 5. We aim to return access as quickly as we can. Seeour statementfor more information.
Claude 12 Jun 2026 claude_app

June 12, 2026 — Edit Claude’s drafts in place

When Claude writes a draft in chat or Claude Cowork (a report, a plan, a brief), it opens right beside your chat. Highlight the part you want changed, type the change, and Claude makes the edit right where you marked it. No switching apps, no re-describing paragraphs in chat. For more information, seeWork with artifacts.
Claude 2 Jun 2026 claude_app

June 2, 2026 — Enterprise plans can manage admin permissions with custom roles

We extended the existing custom roles framework by adding admin permissions. Admin permissions give members access to specific administrative areas, like billing or privacy, without the need to make them Owners. For more information, seeManage custom roles on Enterprise plans.
Claude 28 May 2026 claude_app

May 28, 2026 — Enterprise plans can manage connector access with custom roles

We added connector permissions to extend the existing custom roles framework and allow administrators to control which connectors, and which individual tools on those connectors, are available to each custom role. For more information, seeManage custom roles on Enterprise plans.
Claude 17 Apr 2026 claude_app

April 17, 2026 — Claude Design by Anthropic Labs

With Opus 4.7, we also launched Claude Design, a newAnthropic Labsproduct that lets you collaborate with Claude to create visual outputs like designs, prototypes, slides, and one-pagers. For more information, seeGet started with Claude Design.
Claude 9 Apr 2026 claude_app

April 9, 2026 — Claude Cowork generally available

Claude Cowork is now generally available on macOS and Windows through the Claude Desktop app. With this, we’re expanding Claude Cowork with new capabilities:
Claude Cowork in the Analytics API.For more information, seeAnalytics APIs.Usage analytics for Claude Cowork.For more information, seeView usage analytics for Team and Enterprise plans.Claude Cowork OpenTelemetry support.For more information, seeMonitor Claude Cowork activity with OpenTelemetry.
Claude 9 Apr 2026 claude_app

April 9, 2026 — Claude Cowork generally available

Claude Cowork is now generally available on macOS and Windows through the Claude Desktop app. With this, we’re expanding Claude Cowork with new capabilities:
Claude Cowork in the Analytics API.For more information, seeClaude Enterprise Analytics API: Access engagement and adoption data.Usage analytics for Claude Cowork.For more information, seeView usage analytics for Team and Enterprise plans.Claude Cowork OpenTelemetry support.For more information, seeMonitor Claude Cowork activity with OpenTelemetry.
Claude 9 Apr 2026 claude_app

April 9, 2026 — Role-based access controls for Enterprise plans

Admins can now organize users into groups, manually or via SCIM from your identity provider, and assign each group a custom role defining which Claude capabilities its members can use. Turn Claude Cowork on for specific teams, restrict features by department and adjust as adoption grows. Learn more aboutsetting up role-based permissions,managing group spend limits, andmanaging custom roles.
Claude 25 Mar 2026 claude_app

March 25, 2026 — Interactive apps in Claude for iOS and Android

The Claude mobile app can now connect to fully interactive apps. Pull up live charts, sketch diagrams, and build shareable assets, all rendered visually right in your conversation. For more information, seeUse interactive connectors in Claude.
Claude 23 Mar 2026 claude_app

March 23, 2026 — Computer use research preview in Cowork and Claude Code + Dispatch improvements

Users on Pro and Max plans can give Claude access to computer use. Claude can open files, run dev tools, point, click, and navigate to what’s on your screen to perform tasks itself—with no setup required. Claude’s new computer use capability makes Dispatch even more helpful by allowing it to use your computer on your behalf while you’re away. For more information, seeLet Claude use your computer in Coworkor our blog post:Put Claude to work on your computer.
Claude 17 Mar 2026 claude_app

March 17, 2026 — Control Cowork from your phone with a persistent thread (research preview for Pro/Max)

Users on Pro and Max plans can access a persistent agent thread via Claude Desktop or Claude for iOS/Android to manage tasks in Cowork. We're rolling this out to Max plans starting today, and Pro plans over the next two days. For more information, seeAssign tasks to Claude from anywhere in Cowork.
Claude 12 Mar 2026 claude_app

March 12, 2026 — Claude creates interactive charts, diagrams and visualizations

Claude can now create custom charts, diagrams and other visualizations in-line in its responses. For more information, seeCustom visuals in chat.
Claude 11 Mar 2026 claude_app

March 11, 2026 — Work across Excel and PowerPoint

We’ve improved our Claude for Excel and Claude for PowerPoint add-ins. They can now share the full context of your conversation, so every action Claude takes in one application is informed by everything that’s happened in the other. We also added support for skills in the add-ins, and the ability for Amazon Bedrock, Google Cloud’s Vertex AI, or Microsoft Foundry users to connect to them via an LLM gateway. For more information, refer to the following articles:
Work across Excel and PowerPointUse Claude for Excel and PowerPoint with an LLM gateway
Claude 2 Mar 2026 claude_app

March 2, 2026 — Memory for free users

Memory from chat history is now available for all Claude users, including free users. For more information, refer to the following articles:
Use Claude’s chat search and memory to build on previous contextImport and export your memory from Claude
Claude 25 Feb 2026 claude_app

February 25, 2026 — Scheduled tasks in Cowork

We introduced the ability to create and schedule both recurring and on-demand tasks in Cowork, as well as a new Customize section in Claude Desktop that groups skills, plugins, and connectors in one place. For more information, seeSchedule recurring tasks in Cowork.
Claude 24 Feb 2026 claude_app

February 24, 2026 — Cowork plugins and admin controls

We launched a new plugin marketplace and admin controls for Team and Enterprise plans. For more information, refer to these articles:
Manage Cowork plugins for your organizationUse plugins in Cowork
Claude 17 Feb 2026 claude_app

February 17, 2026 — Claude Sonnet 4.6 launch

We launched our most capable Sonnet model yet, with a full upgrade of the model’s skills across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Sonnet 4.6 also features a 1M token context window in beta. Read our blog post for more information:Introducing Claude Sonnet 4.6.
Claude 13 Feb 2026 claude_app

February 13, 2026 — Analytics API for Enterprise plans

The Enterprise Analytics API provides programmatic access to usage and engagement data for Claude and Claude Code Remote usage within your organization. Data is aggregated per organization, per day, and each endpoint returns a snapshot for a single date that you specify. For more information, seeAccess usage data with the Analytics API.
Claude 13 Feb 2026 claude_app

February 13, 2026 — Analytics API for Enterprise plans

The Enterprise Analytics API provides programmatic access to usage and engagement data for Claude and Claude Code Remote usage within your organization. Data is aggregated per organization, per day, and each endpoint returns a snapshot for a single date that you specify. For more information, seeAnalytics APIs.
Claude 12 Feb 2026 claude_app

February 12, 2026 — Self-serve Enterprise plans

Previously, Enterprise plans were only available to customers working with our Sales team. Now, any organization can purchase an Enterprise plan directly on our website with no Sales conversation required. Self-serve Enterprise plans have a single seat type that includes access to Claude, Claude Code, and Cowork. For more information, refer toour blog postorWhat is the Enterprise plan?
Claude 5 Feb 2026 claude_app

February 5, 2026 — Claude Opus 4.6 launch

We’ve upgraded our smartest model and improved its coding skills. Read our blog post for more information:Introducing Claude Opus 4.6.
Claude 5 Feb 2026 claude_app

February 5, 2026 — Introducing Claude for PowerPoint

Claude is now available as an add-in for PowerPoint. Read more here:Use Claude for PowerPoint.
Claude 5 Feb 2026 claude_app

February 5, 2026 — Claude for Excel improvements

We’ve updated Claude for Excel so it uses Opus 4.6 and supports native Excel operations such as pivot table editing and conditional formatting. See our updated article for more information:Using Claude for Excel.
Claude 16 Jan 2026 claude_app

January 16, 2026 — Cowork research preview expanded to Pro plans

Cowork is now available to Pro plan users on Claude Desktop (macOS only).

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.

Platforms We Track

We currently monitor ChatGPT release notes, OpenAI developer and model changelogs, Gemini API and app updates, Perplexity product and API changes, Microsoft 365 Copilot release notes, and Google Search Central documentation updates. New sources are added as the AI landscape evolves.

Built by reconnAI

reconnAI tracks how AI systems represent brands in their responses. We monitor mentions, sentiment and citations across ChatGPT, Gemini, Perplexity and more — helping businesses understand and improve their visibility in the age of AI search. Learn more →