Brim's September 2025 Release: More Powerful Variables for More Powerful Abstraction

At Brim, we’re always working to make chart abstraction faster, easier, and more reliable to make chart review faster for medical research, registries, clinical workflows, clinical trials, and more. This month’s release focuses on giving you more flexibility and control when working with complicated variables. Whether you’re designing new projects, refining existing ones, or scaling abstraction across teams, these updates are built to help you move faster with confidence.

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Cleaner Variable Creation & Editing

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We’ve redesigned the variable screen to make it easier to navigate, edit, and manage. Now you can find what you need faster and build cleaner projects with less friction. This streamlined interface makes it easier to understand each field and keep your projects organized.

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More about how each field works here.

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Explicit Variable Referencing in Prompts

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Variables often build on one another, and now Brim makes that easier. You can explicitly reference one variable inside another’s prompt. This allows you to layer definitions and ensure consistent logic across your projects.

When writing a prompt, just type { and select the variable you’d like to reference.

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Ignore Text, Focus on Inputs

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Sometimes the clinical note itself isn’t what you need; you just want to derive meaning from input variables. With this release, you can tell Brim to ignore text entirely and only work from variable inputs. This enables more efficient, streamlined workflows where you can combine signals without unnecessary noise.

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Only Include the Documents You Want

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By default, Brim looks at every note for every variable. But now, you have more control. If you know that only certain notes matter, you can specify exactly which documents Brim should use, filtering by note title or date range. This means cleaner, more precise abstraction tuned to your project’s needs.

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Get the Latest Brim Version

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This release is called 2025.09.30.
You can check which version you’re on by going to Settings > About inside Brim.

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Keep Exploring with Brim

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Our blog continues to cover the most important topics in AI-powered chart abstraction:

• Beyond DIY AI: Experiments are Easy, but Scaling is Hard
• Making Progress: Metrics and Methods for Validating AI Abstraction
• Staying on Track: Validating AI Abstraction as Processes Scale
• Synthetic Healthcare Data and AI

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We’ll keep sharing updates like these every month. As always, if you have feedback, questions, or ideas, we’d love to hear from you. Brim is here to help researchers build the next cure, faster.

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