LLM Changelog

Updated 20 May 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
1,269
Copilot
700
Gemini
280
ChatGPT
267
Claude
54
GoogleAI
18
Perplexity
15
Pinned Highlights · 58
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today Jan 2025 Mar May Jul Sep Nov Jan 2026 Mar May 7 Jan 2025 · Copilot — Outlook: Switch between Work and Web grounding in Microsoft 365 Copilot Chat 8 Jul 2025 · Copilot — Excel: Copilot in Excel with Python | Reasoning Model Integration (Think Deeper) 22 Jul 2025 · Copilot — Microsoft 365 Copilot Chat: Researcheravailable in GA 19 Aug 2025 · Copilot — Microsoft 365 Copilot Chat: GPT-5 now available in Copilot Chat 3 Sep 2025 · Copilot — Microsoft 365 Copilot Chat: Personalize interactions with Copilot Memory 16 Sep 2025 · ChatGPT — September 16, 2025 — Improvements to search in ChatGPT 29 Sep 2025 · ChatGPT — September 29, 2025 — Introducing Instant Checkout and the Agentic Commerce Proto… 14 Nov 2025 · Perplexity — What We Shipped - November 14th 24 Nov 2025 · ChatGPT — November 24, 2025 — Shopping research in ChatGPT 5 Dec 2025 · Perplexity — What We Shipped - December 5th 12 Dec 2025 · Perplexity — What We Shipped - December 12th 23 Dec 2025 · Copilot — Microsoft 365 Copilot app: GPT-5 powers Copilot Chat by default 15 Jan 2026 · ChatGPT — January 15, 2026 — Improved memory for finding details from past chats (Plus & P… 22 Jan 2026 · ChatGPT — January 22, 2026 — 5.2 Personality System Prompt Update 26 Jan 2026 · ChatGPT — January 26, 2026 — Improvements to search response quality in Voice 27 Jan 2026 · Copilot — Microsoft 365 Copilot Chat: Copilot Chat model selector now offers GPT-5.2 30 Jan 2026 · ChatGPT — January 30, 2026 — More visual responses 4 Feb 2026 · ChatGPT — February 4, 2026 — Update on thinking time settings for GPT-5.2 Thinking in Chat… 6 Feb 2026 · Perplexity — Perplexity Update - February 6th, 2026 9 Feb 2026 · ChatGPT — February 9, 2026 — Testing ads in ChatGPT (Free, Go) 10 Feb 2026 · ChatGPT — February 10, 2026 — Updates to deep research 10 Feb 2026 · ChatGPT — February 10, 2026 — GPT-5.2 Instant Update 12 Feb 2026 · Gemini — 2026.02.12 13 Feb 2026 · Perplexity — What We Shipped - February 13, 2026 13 Feb 2026 · ChatGPT — February 13, 2026 — ChatGPT updates: Better file uploads, easier copying, and mo… 19 Feb 2026 · Gemini — 2026.02.19 20 Feb 2026 · Perplexity — What We Shipped - February 20th, 2026 20 Feb 2026 · ChatGPT — February 20, 2026 — Expanded context window for Thinking 24 Feb 2026 · Copilot — Microsoft 365 Copilot extensibility: Declarative agents upgraded to GPT‑5.1 25 Feb 2026 · ChatGPT — February 25, 2026 — Add sources to your projects from anywhere 3 Mar 2026 · ChatGPT — March 3, 2026 — GPT-5.3 Instant Update 4 Mar 2026 · GoogleAI — Removed outdated information about JavaScript and accessibility 5 Mar 2026 · ChatGPT — March 5, 2026 — GPT-5.4 Thinking in ChatGPT 10 Mar 2026 · Copilot — Microsoft 365 Copilot Chat: Explainable AI with deep and inline citations for co… 24 Mar 2026 · ChatGPT — March 24, 2026 — Shopping updates in ChatGPT 2 Apr 2026 · ChatGPT — April 2, 2026 — ChatGPT in Apple CarPlay 9 Apr 2026 · ChatGPT — April 9, 2026 — GPT-5.3 Instant mini in ChatGPT 13 Apr 2026 · GoogleAI — Introducing a new spam policy for "back button hijacking" 14 Apr 2026 · Gemini — April 14, 2026 14 Apr 2026 · GoogleAI — Clarifying the use of spam reports 15 Apr 2026 · Gemini — April 15, 2026 15 Apr 2026 · Gemini — 2026.04.15 16 Apr 2026 · Claude — April 16, 2026 — Claude Opus 4.7 launch 16 Apr 2026 · ChatGPT — April 16, 2026 — Rolling out ads in Australia, New Zealand, and Canada 17 Apr 2026 · Perplexity — Personal Computer on Mac Launch and Computer Updates - April 17, 2026 20 Apr 2026 · GoogleAI — Added a section about "read more" deep links 21 Apr 2026 · Gemini — April 21, 2026 21 Apr 2026 · Copilot — Microsoft 365 Copilot chat: Rich Bing web answer cards in Copilot Chat 22 Apr 2026 · ChatGPT — April 22, 2026 — Fast answers in ChatGPT 22 Apr 2026 · ChatGPT — April 22, 2026 — ChatGPT for Clinicians 23 Apr 2026 · ChatGPT — April 23, 2026 — GPT-5.5 in ChatGPT 30 Apr 2026 · GoogleAI — Expanding preferred sources to all languages where Google Search is available 5 May 2026 · ChatGPT — May 5, 2026 — Memory sources and more personalized responses in ChatGPT 5 May 2026 · ChatGPT — May 5, 2026 — GPT-5.5 Instant in ChatGPT 8 May 2026 · GoogleAI — Deprecating the FAQ rich result feature 12 May 2026 · ChatGPT — May 12, 2026 — More images in answers for Free users 15 May 2026 · ChatGPT — May 15, 2026 — Personal finances in ChatGPT 15 May 2026 · GoogleAI — Clarifying that spam policies apply to generative AI responses in Google Search
1,251–1,269 of 1,269 updates
ChatGPT
ChatGPT 24 May 2023 chatgpt

May 24, 2023 — iOS app available in more countries, shared links in alpha, Bing Plugin, disable history on iOS

ChatGPT app for iOS in more countries
Good news! We’re expanding availability of the ChatGPT app for iOS to more countries and regions. Users in 11 countries can now download the ChatGPT app in the Apple App Store including the United States: Albania, Croatia, France, Germany, Ireland, Jamaica, Korea, New Zealand, Nicaragua, Nigeria, and the United Kingdom.
We will continue to roll out to more countries and regions in the coming weeks. You can track the iOS app rollout here.
Shared Links
We're excited to introduce a new feature: shared links. This feature allows you to create and share your ChatGPT conversations with others. Recipients of your shared link can either view the conversation or copy it to their own chats to continue the thread. This feature is currently rolling out to a small set of testers in alpha, with plans to expand to all users (including free) in the upcoming weeks.
To share your conversations:
Click on the thread you’d like to shareSelect the “Share” buttonClick on “Copy Link”
Learn more.
Bing Plugin
Browse with Bing. We’ve integrated the browsing feature - currently in beta for paid users - more deeply with Bing. You can now click into queries that the model is performing. We look forward to expanding the integration soon.
Disable chat history on iOS
You can now disable your chat history on iOS. Conversations started on your device when chat history is disabled won’t be used to improve our models, won’t appear in your history on your other devices, and will only be stored for 30 days. Similar to the functionality on the web, this setting does not sync across browsers or devices. Learn more.
Gemini
Gemini 23 May 2023 gemini_app

2023.05.23

Bringing images to BardWhat:Starting with English responses, Bard can now bring in images from Google Search, so you can get helpful responses with visuals. You can also ask Bard for images directly. Bard will show a source for each image.Why:Images can help you communicate your ideas more effectively. They can bring concepts to life, make recommendations more persuasive, and enhance responses when you ask for visual information.
Gemini
Gemini 23 May 2023 gemini_app

2023.05.23

Bringing images to BardWhat: Starting with English responses, Bard can now bring in images from Google Search, so you can get helpful responses with visuals. You can also ask Bard for images directly. Bard will show a source for each image.Why:Images can help you communicate your ideas more effectively. They can bring concepts to life, make recommendations more persuasive and enhance responses when you ask for visual information.
Gemini
Gemini 15 May 2023 gemini_app

2023.05.15

More concise summariesWhat:We’ve updated Bard with better summarization capabilities by incorporating advances we’ve developed in our large language models.Why:We’re making Bard better at summarizing information, which is especially helpful when you want to get the gist of a topic quickly. Bard won’t always get it right, but will keep improving with your feedback.Making sources more usefulWhat:Bard can now help you identify which parts of a response match a source. For the responses with sources, you’ll see numbers alongside the response. By clicking on the numbers you will now be able to identify the section of the text that matches the source and easily navigate to it.Why:We want to make it easier for you to understand which parts of a response match a source and provide you with source links in line with the text.
ChatGPT
ChatGPT 12 May 2023 chatgpt

May 12, 2023 — Web browsing and Plugins are now rolling out in beta

If you are a ChatGPT Plus user, enjoy early access to experimental new features, which may change during development. We’ll be making these features accessible via a new beta panel in your settings, which is rolling out to all Plus users over the course of the next week.
Once the beta panel rolls out to you, you’ll be able to try two new features:
Web browsing: Try a new version of ChatGPT that knows when and how to browse the internet to answer questions about recent topics and events.Plugins:Try a new version of ChatGPT that knows when and how to use third-party plugins that you enable.
To use third-party plugins, follow these instructions:
Navigate tohttps://chatgpt.com/Select “Plugins” from the model switcherIn the “Plugins” dropdown, click “Plugin Store” to install and enable new plugins
To enable beta features:
Click on 'Profile & Settings'Select 'Beta features'Toggle on the features you’d like to try
For more information on our rollout process, please check out the article here.
In addition to the beta panel, users can now choose to continue generating a message beyond the maximum token limit. Each continuation counts towards the message allowance.
Gemini
Gemini 10 May 2023 gemini_app

2023.05.10

Expanding access to Bard in more countries and languagesWhat:You can now collaborate with Bard in Japanese and Korean, in addition to US English. We have also expanded access to Bard in all three languages to over 180 countries and territories.Why:As we continue to build Bard responsibly with more real-world feedback, we're gradually expanding access to more languages, countries, and territories over time.Export to Google Docs & GmailWhat:We've added new one-click options to export content generated by Bard, including formatting, directly into Google Docs and Gmail.Why:We want to speed up and simplify your workflow by giving you a way to export Bard’s responses and edit them directly in these Google Workspace apps.Read more comfortably in dim lightWhat:We’ve launched Dark theme on Bard, giving you the ability to easily switch Bard’s appearance between a light background with dark text to a dark background with light text.Why:Dark theme can make using Bard easier on your eyes in dim light.
Gemini
Gemini 10 May 2023 gemini_app

2023.05.10

2023.05.10Expanding access to Bard in more countries and languagesWhat: You can now collaborate with Bard in Japanese and Korean, in addition to US English. We have also expanded access to Bard in all three languages to over 180 countries and territories.Why:As we continue to build Bard responsibly with more real-world feedback, we're gradually expanding access to more languages, countries, and territories over time.Export to Google Docs & GmailWhat:We've added new one-click options to export content generated by Bard, including formatting, directly into Google Docs and Gmail.Why:We want to speed up and simplify your workflow by giving you a way to export Bard’s responses and edit them directly in these Google Workspace apps.Read more comfortably in dim lightWhat:We’ve launched Dark theme on Bard, giving you the ability to easily switch Bard’s appearance between a light background with dark text to a dark background with light text.Why:Dark theme can make using Bard easier on your eyes in dim light.
Gemini
Gemini 5 May 2023 gemini_app

2023.05.05

Access for Google Workspace accountsWhat:Google Workspace admins can now enable Bard for their domains, allowing their users to access Bard using their Workspace accounts.Why:You can now use Bard to help with work, research, or other business needs, when signed into your administrator-enabled Google Workspace account.
ChatGPT
ChatGPT 3 May 2023 chatgpt

May 3, 2023 — Updates to ChatGPT

We’ve made several updates to ChatGPT! Here's what's new:
You can now turn off chat history and export your data from the ChatGPT settings. Conversations that are started when chat history is disabled won’t be used to train and improve our models, and won’t appear in the history sidebar.We are deprecating the Legacy (GPT-3.5) model on May 10th. Users will be able to continue their existing conversations with this model, but new messages will use the default model.
Gemini
Gemini 21 Apr 2023 gemini_app

2023.04.21

Help with codingWhat:Bard can now help you code in over 20 programming languages. When Bard generates Python code, you can also export & test the code directly in Google Colab. Try prompting Bard for help with languages like C++, Go, Java, JavaScript, Python, TypeScript, and even Google Sheets functions.Why:People of all levels of programming experience, from beginners to experienced engineers, can use Bard to help with coding—whether it’s by generating & exporting code, debugging code, or explaining how code works. Use discretion and carefully test and review all code for errors, bugs, and vulnerabilities before relying on it.Adding more variety to draftsWhat:When you view other drafts, you’ll now see a wider range of options that are more distinct from each other.Why:A wider range of more distinct drafts can help expand your creative explorations.
Gemini
Gemini 21 Apr 2023 gemini_app

2023.04.21

2023.04.21Help with codingWhat: Bard can now help you code in over 20 programming languages. When Bard generates Python code, you can also export and test the code directly in Google Colab. Try prompting Bard for help with languages like C++, Go, Java, JavaScript, Python, TypeScript, and even Google Sheets functions.Why:People of all levels of programming experience, from beginners to experienced engineers, can use Bard to help with coding—whether it’s by generating & exporting code, debugging code, or explaining how code works. Use discretion and carefully test and review all code for errors, bugs, and vulnerabilities before relying on it.Adding more variety to draftsWhat:When you view other drafts, you’ll now see a wider range of options that are more distinct from each other.Why:A wider range of more distinct drafts can help expand your creative explorations.
Gemini
Gemini 10 Apr 2023 gemini_app

2023.04.10

Welcome to Bard’s inaugural experiment update!Experiment updates pageWhat:We’ve launched anExperiment updatespage to post the latest features, improvements, and bug fixes for the Bard experiment.Why:So that people will have an easy place to see the latest Bard updates for them to test and provide feedback.There’s more when you click “Google it”What:We’ve added additional suggested Search topics when people click “Google it.”Why:People will be able to explore a broader range of interests with more related topics.Updates to Bard’s capabilitiesWhat:We've updated Bard with better capabilities for math and logic.Why:Bard doesn’t always get it right on math and logic prompts and we are working toward higher-quality responses in these areas.
ChatGPT
ChatGPT 23 Mar 2023 chatgpt

March 23, 2023 — Introducing plugins in ChatGPT

We are announcing experimental support for AI plugins in ChatGPT — tools designed specifically for language models. Plugins can help ChatGPT access up-to-date information, run computations, or use third-party services. You can learn more about plugins here.
Today, we will begin extending plugin access to users and developers from our waitlist. The plugins we are rolling out with are:
Browsing: An experimental model that knows when and how to browse the internetCode Interpreter: An experimental ChatGPT model that can use Python, and handles uploads and downloadsThird-party plugins: An experimental model that knows when and how to use external plugins.
You can join the waitlist to try plugins here:
ChatGPT Plugin Waitlist
ChatGPT
ChatGPT 14 Mar 2023 chatgpt

March 14, 2023 — Announcing GPT-4 in ChatGPT

We’re excited to bring GPT-4, our latest model, to our ChatGPT Plus subscribers.
GPT-4 has enhanced capabilities in:
Advanced reasoningComplex instructionsMore creativity
To give every Plus subscriber a chance to try the model, we'll dynamically adjust the cap for GPT-4 usage based on demand. You can learn more about GPT-4 here.
For this release, there are no updates to free accounts.
ChatGPT
ChatGPT 13 Feb 2023 chatgpt

Feb 13, 2023 — Updates to ChatGPT

We’ve made several updates to ChatGPT! Here's what's new:
We’ve updated performance of the ChatGPT model on our free plan in order to serve more users.Based on user feedback, we are now defaulting Plus users to a faster version of ChatGPT, formerly known as “Turbo”. We’ll keep the previous version around for a while.We rolled out the ability to purchaseChatGPT Plusinternationally.
ChatGPT
ChatGPT 9 Feb 2023 chatgpt

Feb 9 2023 — Introducing ChatGPT Plus

As we recently announced, our Plus plan comes with early access to new, experimental features. We are beginning to roll out a way for Plus users the ability to choose between different versions of ChatGPT:
Default: the standard ChatGPT modelTurbo: optimized for speed (alpha)
Version selection is made easy with a dedicated dropdown menu at the top of the page. Depending on feedback, we may roll out this feature (or just Turbo) to all users soon.
ChatGPT
ChatGPT 30 Jan 2023 chatgpt

Jan 30, 2023 — Factuality and mathematical improvements

We’ve upgraded the ChatGPT model with improved factuality and mathematical capabilities.
ChatGPT
ChatGPT 9 Jan 2023 chatgpt

Jan 9, 2023 — Updates to ChatGPT

We're excited to announce several updates to ChatGPT! Here's what's new:
We made more improvements to the ChatGPT model! It should be generally better across a wide range of topics and has improved factuality.Stop generating: Based on your feedback, we've added the ability to stop generating ChatGPT's response
ChatGPT
ChatGPT 15 Dec 2022 chatgpt

Dec 15, 2022 — Performance updates to ChatGPT

We're excited to announce several updates to ChatGPT! Here's what's new:
General performance: Among other improvements, users will notice that ChatGPT is now less likely to refuse to answer questions.Conversation history: You’ll soon be able to view past conversations with ChatGPT, rename your saved conversations and delete the ones you don’t want to keep. We are gradually rolling out this feature.Daily limit: To ensure a high-quality experience for all ChatGPT users, we are experimenting with a daily message cap. If you’re included in this group, you’ll be presented with an option to extend your access by providing feedback to ChatGPT.
To see if you’re using the updated version, look for “ChatGPT Dec 15 Version” at the bottom of the screen.

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.

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