Active Inference Institute @InferenceActive
Open-science Institute for learning, researching, and applying Active Inference. activeinference.institute Online Joined July 2020-
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Fundamentals of Active Inference Open Source code available up through Chapter 10 youtu.be/tmqPfDfQ5-s github.com/ActiveInferenc…
May 2026 Newsletter 📡🐟🐌 Active Inference Institute activeinferenceinstitute.substack.com/p/may-2026-new…
ModelStream #008.1 ~ 6/18/2026 at 12 UTC James McClure, Gethin Norman Formal Verification of Discrete Active Inference Systems in PRISM youtube.com/live/-q8XqVxQq…
Policy Entanglement in Active Inference: A Coupling-Parameter Deformation Framework for Multi-Stream Policy Posterior Distributions, Machine-Checked and Simulated with a Typed Float Boundary Code: github.com/ActiveInferenc… Paper: zenodo.org/records/204196… Daniel Friedman Active inference models often need to choose among several policy streams at once, for example streams tied to different effectors, sensory channels, agents, agents within a group, or planning horizons. Standard discrete active-inference implementations keep this manageable by treating those streams as independent, but that simplification removes the dependencies that make coordinated action possible. This manuscript introduces policy entanglement: a controlled deformation of the usual independent policy posterior by a scalar coupling strength and explicit compatibility and preference potentials. The construction preserves the finite active inference setting while making cross-stream dependence a first-class modeling object rather than an implicit artifact of the chosen factorization. The framework keeps a claim-strength ledger that distinguishes exact recoveries, parameterized embeddings, numerical witnesses, and structural analogies. Mean-field active inference is the exact independent case. Products of experts, copula variational inference, options, hierarchical and sophisticated inference, branching-time active inference, renormalization-style compression, and Markov-blanket multi-agent views are connected as special cases through their stated posterior-factorization maps. The central result is a free-energy decomposition that separates ordinary per-stream free energy, coupling preference terms, the coupling normalizer, and the information cost of leaving independence.
Code examples for Ch 1, 2, 3 now available! youtube.com/watch?v=qwjwbi… github.com/ActiveInferenc… More code and methods will be added as the textbook group proceeds
"Fundamentals of Active Inference" is now published! mitpress.mit.edu/9780262050951/… Textbook Group begins in April at the Institute, all levels of familiarity with Active Inference welcome to join: coda.io/form/Active-In…
Using @mathematics_inc math.inc/opengauss and @NousResearch Hermes agent for Lean skills in the loop.
"Towards Lean 4 Formalization of the Free Energy Principle: AI-Driven Theorem Sketching and Verification for Active Inference and Bayesian Mechanics" Daniel Friedman Paper: zenodo.org/records/196992… Code: github.com/ActiveInferenc…
Fundamentals Textbook group has begun, first recording: youtube.com/watch?v=7UbCTp… Register at …tbook-group.activeinference.institute
"Fundamentals of Active Inference" is now published! mitpress.mit.edu/9780262050951/… Textbook Group begins in April at the Institute, all levels of familiarity with Active Inference welcome to join: coda.io/form/Active-In…
A Literature Review Architecture for Active Inference: Scalable Assertion Extraction, Nanopublications, and Citation-Weighted Hypothesis Scoring: A Computational Meta-Analysis of the Active Inference Literature (2000–2026) zenodo.org/records/194619… Daniel Friedman & Joel Dietz github.com/ActiveInferenc…
Live in 5 minutes: youtube.com/live/dBAx-VDVc…
ModelStream #007.3 ~ 3/24/2026 at 15 UTC Conor Heins: pymdp 1.0.0 youtube.com/live/dBAx-VDVc… Code: github.com/infer-actively… Documentation: pymdp-rtd.readthedocs.io/en/latest/
Announcements for week of April 8, 2026 weekly.activeinference.institute Upcoming Livestreams: ModelStream #007.3 ~ 4/9/2026 at 15 UTC with Conor Heins et al.: “pymdp 1.0.0“ youtube.com/live/dBAx-VDVc… Code: github.com/infer-actively… “Fundamentals of Active Inference” textbook group The first cohort of the “Fundamentals of Active Inference: Principles, Algorithms, and Applications of the Free Energy Principle for Engineers” textbook group is starting on April 21st! Register for the Textbook group here — …tbook-group.activeinference.institute Learn more about the author, Sanjeev Namjoshi, here — sanjeevnamjoshi.com Open Project Meetings this week: See activities.activeinference.institute for the location of all events listed here. 4/9/2026, 13:00 UTC — RxInfer.jl ~ Learning session. 4/10/2026, 13:00 UTC — RxInfer.jl ~ Projects session. Join the Discord: discord.activeinference.institute Learn more about the Active Inference Ecosystem ecosystem.activeinference.institute Make a Measurement to get your update included in the upcoming Newsletter: measure.activeinference.institute We are a 501(c)(3) educational non-profit. Donate at: donate.activeinference.institute Email [email protected] with any questions.
Fundamentals of Active Inference Textbook Group begins April 21st, all welcome to join: …tbook-group.activeinference.institute
"Fundamentals of Active Inference" is now published! mitpress.mit.edu/9780262050951/… Textbook Group begins in April at the Institute, all levels of familiarity with Active Inference welcome to join: coda.io/form/Active-In…
Live in 1 hour: 2026 Quarterly Roundtable #1 youtube.com/live/_HkuQ0Hhi… Institute and Ecosystem Updates. Directions and opportunities for 2026. All Quarterly Roundtable videos since 2021: youtube.com/playlist?list=…
Live in 1 hour: GuestStream #127.1 Borjan Milinković, Jaan Aru: "On biological and artificial consciousness: A case for biological computationalism" youtube.com/live/yFaRYAvix… Paper: sciencedirect.com/science/articl…
Announcements for week of March 25, 2026 weekly.activeinference.institute Tune in on Friday March 27 at 18 UTC to watch the 2026 Quarterly Roundtable #1 youtube.com/live/_HkuQ0Hhi…: find out what the Institute has been up to in the first part of 2026, and (some of) what is upcoming this year. Upcoming Livestreams: GuestStream #127.1 ~ 3/26/2026 at 15 UTC with Borjan Milinković and Jaan Aru On biological and artificial consciousness: A case for biological computationalism youtube.com/live/yFaRYAvix… Roundtable 2026.1 ~ 3/27/2026 at 18 UTC 2026 Quarterly Roundtable #1 youtube.com/live/_HkuQ0Hhi… ModelStream #007.3 ~ 4/9/2026 at 15 UTC with Conor Heins et al.: “pymdp 1.0.0“ youtube.com/live/dBAx-VDVc… Code: github.com/infer-actively… “Fundamentals of Active Inference” textbook group The first cohort of the “Fundamentals of Active Inference: Principles, Algorithms, and Applications of the Free Energy Principle for Engineers” textbook group is starting on April 21st! Register for the Textbook group here — …tbook-group.activeinference.institute Learn more about the author, Sanjeev Namjoshi, here — sanjeevnamjoshi.com Open Project Meetings this week: See activities.activeinference.institute for the location of all events listed here. 3/26/2026, 13:00 UTC — RxInfer.jl ~ Learning session. 3/27/2026, 13:00 UTC — RxInfer.jl ~ Projects session. Join the Discord: discord.activeinference.institute Learn more about the Active Inference Ecosystem ecosystem.activeinference.institute Make a Measurement to get your update included in the upcoming Newsletter: measure.activeinference.institute We are a 501(c)(3) educational non-profit. Donate at: donate.activeinference.institute Email [email protected] with any questions.
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