April Update

Over the past two weeks, we’ve made several changes to the Stack AI platform. We’ve added new apps, LLMs, workflow routing, and much more.

Read about all the additions in the following Product Update! Feel free to reply if you have any questions or suggestions.

Let’s dive into each update and explore how to use it.

APPS

We’ve completely revamped the batch processing interface to make it more powerful and user-friendly:

From CRMs (HubSpot, Salesforce), to Knowledge Bases, to relational databases (MySQL, PostgreSQL), to email clients (Gmail, Outlook), and much more.  

You can use the apps as a node in the workflow builder. This will execute the app every time you run the workflow.

Or you can use Apps as a Tool. This allows LLMs to execute the App only when certain parameters are met.

Now you can use Apps however you want to, and build the flexible AI agents your team demands.

LLM Fallback

Don’t worry, we’ve got your back! With our new LLM fallback feature, you can choose a backup LLM, should your primary one fail. This ensures maximum reliability for your AI agents. You can also execute a fallback node with a separate workflow should your LLM fail.

New LLMs

Llama 4 is now available in Stack AI! Stack AI now supports Llama 4, Meta’s new open-source multimodal AI model with improved performance, a large context window, and cost-effective pricing.

Google Gemini 2.5 comprehends vast datasets and handles complex problems from different information sources, including text, audio, images, video and even entire code repositories.

Thinking Mode for Anthropic 3.7 has been added to our platform. Thinking mode allows Anthropic to spend more time breaking down problems, planning solutions, and exploring different approaches before responding.

Azure OpenAI o3 Mini is now available to our users! o3-mini adds new capabilities, such as structured outputs, functions, and tools. This results in a production-ready model with significant improvements in cost efficiencies.

Tool Renderer

Check it out! Now you can easily visualize data retrieved from Tools. Retrieve and visualize data from several different toolsets, including Yahoo Finance, Jira, Oracle, Google Sheets, and much more.

Revamped Routing

StackAI has new routing capabilities! Now you can route the input query based on the content using AI.

You can route queries based on if-else logic.

These new routing capabilities allow you to create more flexible AI agents that perform their jobs more effectively.

Revamped Python Node

Now you can use a shortcut for node variables in Python! Simply use the /, and all of your nodes will appear as Python variables. This allows you to get the most out of your Python code, and create more sophisticated AI workflows.

Feature Access Control Revamp

We recently revamped our feature access control section! Now you can easily toggle permissions for: Knowledge Bases, LLMs, Tools, etc.

This centralized hub has never been simpler to use, and will make it easy to manage your team’s access to specific features.