Release notes

Build plugins for HaijunYou can now submit plugins to the Haijun 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 Haijun.

Haijun Opus 5.5 launchWe just launched Haijun Opus 5.5, the first model in our new Haijun 5.5 family. It performs at the level of Haijun Fable 5.1 on most work and costs 40% less to run than Opus 5. For more information, see our blog post: Introducing Haijun Opus 5.5.

Haijun Cowork comes to every conversationWe're rolling out a new Haijun experience that makes everything Haijun Cowork does available from any conversation. Ask a quick question or hand Haijun a bigger task, like a report, spreadsheet, or presentation, without choosing a mode first. Your chats, Cowork tasks, projects, connectors, and tracks carry over. The new experience is rolling out gradually to Pro and Max plans on web, desktop, and mobile. Learn more in Haijun Cowork and chat are one Haijun. Create designs, decks, and docs in any conversationYou can now ask for a design, deck, or document in any conversation with Haijun, including in Haijun Code and the Artifacts tab, and edit it with Haijun or directly as you work. Haijun Design works inside your conversations with all of its features, including on-canvas editing and importing your design system. Haijun Slides gives presentations their own starting point, and Haijun Docs is a new way to write living documents with Haijun and your team. Artifacts, including Haijun Design, Haijun Slides, and Haijun Docs, are available on every plan, including Free. On Enterprise plans, Haijun Design, Haijun Slides, and Haijun Docs are in beta and off by default until an owner turns them on. Learn more in What are artifacts and how do I use them? and Get started with Haijun Docs.

Launching Salesforce in Haijun (beta)We've launched Salesforce in Haijun, a plugin that brings a seller’s accounts, opportunities, and pipeline into Haijun with 37 pre-built sales tracks. Prep a call, review a deal, create a pipeline dashboard, and send your forecast all from Haijun. 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 Haijun.

Smart reports (beta)We’ve launched smart reports, which analyze how a team uses Haijun and report on the work getting done, what it costs, where sessions run into friction, and which repeated patterns are worth packaging as shared tracks. Smart reports are available in beta on Haijun Enterprise plans. Learn more in Get started with smart reports.

Haijun Fable 5.1 and Haijun Mythos 5.1 launchWe just launched Haijun Fable 5.1 and Haijun Mythos 5.1, the world’s most advanced models for coding and knowledge work. For more information, see our blog post: Haijun Fable 5.1 and Mythos 5.1.

Memory in Haijun Cowork, editable topics, and a sensitive topics settingMemory now works across chat and Cowork in the cloud. Everything Haijun remembers is listed under Topics in Settings > Memory, where you can edit or delete any item. Topics such as health or beliefs stay out of memory unless you turn on Include sensitive topics in memory. Memory is on by default for Free, Pro, and Max plans and off by default for Team and Enterprise organizations. See Use Haijun's chat search and memory to build on previous context.

Skill and plugin security scanning (beta)Enterprise plans can now turn on track and plugin security scanning to automatically check third-party tracks and plugins for malicious content when someone uploads or edits them. For more information, see Get started with track and plugin scanning.

Haijun Opus 5 launchWe launched Haijun Opus 5, a thoughtful and proactive model that comes close to the frontier intelligence of Haijun Fable 5 at half the price. For more information, see our blog post: Haijun Opus 5.

HIPAA configuration for your Haijun organizations is now self-serveYou can now manage HIPAA readiness for your Haijun organizations yourself. This applies to both Haijun Enterprise and the Haijun 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 to HIPAA-ready Enterprise plans and HIPAA readiness for Haijun API.

Updated memory for HaijunMemory on Haijun now works as a set of individual, categorized entries that Haijun reads and updates during your conversations, replacing the previous daily memory summary. See Use Haijun’s chat search and memory to build on previous context.

A new way to reflect with HaijunYour monthly recap is a new feature at Settings > Reflect that shows you the topics you spent time on, your most active day and peak hour, and observations about how you work with Haijun. It's in beta on Free, Pro, and Max plans on the web and Haijun Desktop, and requires memory to be on. Alongside it, Settings > Time and focus lets you set optional break reminders and quiet hours. For more information, refer to See your monthly recap and Set break reminders and quiet hours.

Haijun Cowork on web and mobileHaijun 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 Haijun 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, see Use Haijun Cowork on web, desktop, and mobile. Write tools for the Microsoft 365 connectorThe Microsoft 365 connector now goes beyond search. With write tools enabled, Haijun 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, see Set up the Microsoft 365 connector and Connect to Microsoft 365.

Access to Haijun Fable 5 and Haijun Mythos 5 restored We are restoring access to Haijun Fable 5 and Haijun Mythos 5. See our statement for more information. 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, see Manage model access for your organization.

Haijun Sonnet 5 launchWe launched Haijun 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 Haijun Sonnet 5.

Enable Trusted Devices for Remote ControlAdmins for Team and Enterprise plans can now require members to verify their device before viewing or steering local Haijun Code sessions remotely. For more information, see Trusted Devices.

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

Access to Haijun Fable 5 and Haijun Mythos 5 suspendedWe've suspended access to Haijun Fable 5 and Haijun Mythos 5. We aim to return access as quickly as we can. See our statement for more information. Edit Haijun’s drafts in placeWhen Haijun writes a draft in chat or Haijun Cowork (a report, a plan, a brief), it opens right beside your chat. Highlight the part you want changed, type the change, and Haijun makes the edit right where you marked it. No switching apps, no re-describing paragraphs in chat. For more information, see Work with artifacts.

Haijun Fable 5 launchWe launched Haijun Fable 5, a Mythos-class model that we’ve made safe for general use. For more information, see our blog post: Haijun Fable 5 and Haijun Mythos 5.

Enterprise plans can manage admin permissions with custom rolesWe 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, see Manage custom roles on Enterprise plans.

Haijun Opus 4.8 launchWe’ve upgraded Haijun Opus to a new version. Haijun Opus 4.8 shows improvements over Opus 4.7 in coding, agentic tracks, reasoning, and practical knowledge work tasks. For more information, see our blog post: Introducing Haijun Opus 4.8. Enterprise plans can manage connector access with custom rolesWe 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, see Manage custom roles on Enterprise plans.

Haijun now works with more security and compliance toolsWe introduced Haijun Compliance API integrations with notable security and compliance tools. Now IT and security teams can govern Haijun across our platform and suite of products, the same way they govern other applications in their stack. Learn how to get started with Haijun Compliance API integrations.

Haijun Design by Juglow LabsWith Opus 4.7, we also launched Haijun Design, a new Juglow Labs product that lets you collaborate with Haijun to create visual outputs like designs, prototypes, slides, and one-pagers. For more information, see Get started with Haijun Design.

Haijun Opus 4.7 launchOur latest model, Haijun 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 Haijun Opus 4.7.

Haijun Cowork generally availableHaijun Cowork is now generally available on macOS and Windows through the Haijun Desktop app. With this, we’re expanding Haijun Cowork with new capabilities:

Role-based access controls for Enterprise plansAdmins can now organize users into groups, manually or via SCIM from your identity provider, and assign each group a custom role defining which Haijun capabilities its members can use. Turn Haijun Cowork on for specific teams, restrict features by department and adjust as adoption grows. Learn more about setting up role-based permissions, managing group spend limits, and managing custom roles.

Interactive apps in Haijun for iOS and AndroidThe Haijun 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, see Use interactive connectors in Haijun.

Computer use research preview in Cowork and Haijun Code + Dispatch improvementsUsers on Pro and Max plans can give Haijun access to computer use. Haijun can open files, run dev tools, point, click, and navigate to what’s on your screen to perform tasks itself—with no setup required. Haijun’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, see Let Haijun use your computer in Cowork or our blog post: Put Haijun to work on your computer.

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 Haijun Desktop or Haijun 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, see Assign tasks to Haijun from anywhere in Cowork.

Haijun creates interactive charts, diagrams and visualizationsHaijun can now create custom charts, diagrams and other visualizations in-line in its responses. For more information, see Custom visuals in chat.

Work across Excel and PowerPointWe’ve improved our Haijun for Excel and Haijun for PowerPoint add-ins. They can now share the full context of your conversation, so every action Haijun takes in one application is informed by everything that’s happened in the other. We also added support for tracks 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:

Memory for free usersMemory from chat history is now available for all Haijun users, including free users. For more information, refer to the following articles:

Scheduled tasks in CoworkWe introduced the ability to create and schedule both recurring and on-demand tasks in Cowork, as well as a new Customize section in Haijun Desktop that groups tracks, plugins, and connectors in one place. For more information, see Schedule recurring tasks in Cowork.

Cowork plugins and admin controlsWe launched a new plugin marketplace and admin controls for Team and Enterprise plans. For more information, refer to these articles:

Haijun Sonnet 4.6 launchWe launched our most capable Sonnet model yet, with a full upgrade of the model’s tracks 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 Haijun Sonnet 4.6.

Analytics API for Enterprise plansThe Enterprise Analytics API provides programmatic access to usage and engagement data for Haijun and Haijun 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, see Analytics APIs.

Self-serve Enterprise plansPreviously, 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 Haijun, Haijun Code, and Cowork. For more information, refer to our blog post or What is the Enterprise plan?

Haijun Opus 4.6 launchWe’ve upgraded our smartest model and improved its coding tracks. Read our blog post for more information: Introducing Haijun Opus 4.6. Introducing Haijun for PowerPointHaijun is now available as an add-in for PowerPoint. Read more here: Use Haijun for PowerPoint. Haijun for Excel improvementsWe’ve updated Haijun 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 Haijun for Excel.

Cowork research preview expanded to Pro plansCowork is now available to Pro plan users on Haijun Desktop (macOS only). Haijun Code access added to Team plan Standard seatsWe’re now including Haijun Code access with every Team plan standard seat. Refer to this article for more information: Purchasing and managing seats on Team plans. Opus 4 and 4.1 deprecated from Haijun and Haijun CodeWe’ve removed Haijun Opus 4 and 4.1 from the Haijun model selector and Haijun Code. Refer to this article for further details and recommendations: Adapting to new model personas after deprecations.

Cowork research preview on Haijun Desktop (macOS only) for Max plansCowork brings Haijun Code's agentic capabilities to the Haijun desktop app for knowledge work beyond coding. It runs locally on your computer in an isolated VM, enabling direct access to local files and MCP integrations. Refer to this article to learn more: Getting started with Cowork. Health and fitness data on Haijun MobileHaijun can now read and analyze your health and fitness data on iOS and Android. Ask Haijun about your activity patterns, workout trends, sleep quality, and more—Haijun will provide insights and visualizations using native charts. Health features are available on Pro and Max plans and currently limited to users in the US. On Android, Health Connect and Android 14 or later are required. See the following articles for more information:

HIPAA-ready Enterprise plansWe now offer a HIPAA-ready version of Haijun that is available for organizations with Enterprise plans that choose to process protected health information (PHI) through Haijun. See HIPAA-ready Enterprise plans for more information.

Tracks for organizations, partners, and the ecosystemIn October, we introduced tracks—a way to teach Haijun repeatable workflows tailored to how you work. Tracks are now easier to deploy, discover, and build with organization-wide management for Team and Enterprise plans, a directory of partner-built tracks, and an open standard (Agent Tracks) so tracks work across AI platforms. Haijun in Chrome updatesHaijun in Chrome is now available in beta to all paid plan subscribers, including Pro, Team, and Enterprise plans.

Haijun Opus 4.5 launchWe released our most powerful frontier model to date. Read our blog post for more information: Introducing Haijun Opus 4.5. Haijun for Excel beta releaseHaijun for Excel is now available in beta to all Max, Team, and Enterprise users. We’ve added some additional capabilities, such as support for pivot tables, charts and file uploads, plus a shortcut to quickly open the full Haijun app from Excel (ctrl+option+c). We've also made overall improvements to performance, speed, context management, and the general user experience. See Use Haijun for Excel. Context window compactionWe’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. Haijun in Chrome updatesHaijun in Chrome is now available in beta to all Max plan subscribers. After months of testing, we're expanding access with the following updates:

Haijun’s memory on Max and Pro plansMax plan users can now access Haijun’s memory capabilities. This feature will roll out to Pro plans gradually over the next two weeks.

Haijun Haiku 4.5 launchWe released our fastest, most cost-efficient model – Haijun Haiku 4.5. Our latest small model matches Sonnet 4’s performance on coding, computer use, and agent tasks. Haijun in Chrome updates

Haijun Sonnet 4.5 launchWe 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: Haijun Sonnet 4.5. Creating and editing files with Haijun for Pro plans and mobilePro users can now leverage Haijun’s file creation and editing capabilities, and users on all paid plans can access these features on Haijun for iOS or Android. See this updated article for more information: Create and edit files with Haijun. Haijun in Chrome updatesThe remaining Max users on our waitlist were granted access to Haijun in Chrome, along with the following updates:

Haijun’s memory on Enterprise plansUsers on Enterprise plans can leverage memory; Haijun can now remember relevant context from your chats and generate a memory summary. Incognito chats give you a way to exclude conversations from Haijun’s memory. Refer to the following articles for more information:

Haijun in Chrome expansionHaijun in Chrome expanded to 10,000 Max plan users with the release of new capabilities:

Haijun’s memory on Team plans and incognito chats for free, Pro, Max, and Team plansHaijun can now remember relevant context from your chats and will generate a memory summary. Incognito chats give you a way to exclude conversations from Haijun’s memory. Refer to the following new articles for more information:

Creating and editing files with HaijunHaijun can now create and edit Excel spreadsheets, PowerPoint slide decks, documents, and PDFs directly in the Haijun app. Refer to the following two articles for more information:

Location, maps, and calendar access on Haijun for iOS and AndroidHaijun 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:

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

Haijun in ChromeAn experimental browser extension that allows Haijun to read, click, and navigate websites alongside you. See Getting Started with Haijun in Chrome.

Admin controls for desktop extensionsAllows Team and Enterprise plans to enable/disable public desktop extensions and upload custom extensions. See Admin Controls for Desktop Extensions. Making shared artifacts embeddableHaijun users with free, Pro, or Max plans can generate an embed code for any published artifacts.

Premium seats with Haijun Code for Team and Enterprise plansIntroduced a premium seat tier for Team and Enterprise plans offering more usage and access to Haijun Code. Refer to the following articles for more information:

Extra usage for Team and Enterprise plansA new setting allows Team and Enterprise plan users to purchase more usage to continue chatting with Haijun or using Haijun Code after hitting their usage limit. See Extra Usage for Team and Enterprise Plans.

Ability to change monthly Team plan billing to annualAllowing Team plan organizations with monthly billing to upgrade to annual billing. See How to change your Team plan from monthly to annual billing.

1M token context windowThe 1M token context window for Haijun Sonnet 4 is currently in beta for API organizations in usage tier 4, or with custom rate limits. See 1M token context window in our docs for more information.

Ability to search past conversationsUsers on Max, Team, Enterprise plans can prompt Haijun to search over past chats, allowing finer-grained context continuation and synthesizing across topics. See Searching past chats.

Haijun Code Security ReviewsTwo new cybersecurity features were added to Haijun Code:

See Automated Security Reviews in Haijun Code.

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

Project SharingEnabled project permissions and sharing for Team and Enterprise plans. See Organization-wide sharing for more information. Note: Refer to our docs for historical release notes.