Timeline and Bridge Map

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Timeline

  • 1995–1996: Core design concepts conceived by Goertzel at University of Western Australia
  • 1997–2001: Intelligenesis Corp. builds the Webmind AI Engine — first practical implementation
  • 2001–2008: Novamente LLC creates the Novamente Cognition Engine. Key publications: The Hidden Pattern (2006), Probabilistic Logic Networks (2008)
  • 2008: Novamente source code released as OpenCog. The specific AGI design is called CogPrime
  • 2012: Building Better Minds documents the full CogPrime architecture
  • 2016: Renaming discussion: "OpenCog is a software design, a codebase, a framework. The CogPrime design is one thing that can be done with OpenCog, but not the only thing." (mailing-list-backed: brainstorming-new-names-for-OpenCogPrime, 2016)
  • 2023: OpenCog Hyperon paper published. CogPrime renamed PRIMUS
  • 2025: Hyperon whitepaper introduces quantale weakness, geodesic control, TransWeave and MORK

The Architectural Bridge Map

Every major OpenCog Classic component has a Hyperon successor.

OpenCog Classic Tech Hyperon Successor Tech What Changed
AtomSpace C++, Guile, Python Space API Rust, Python, multiple backends Generalized behind a universal Space API.
Atomese Scheme S-expressions MeTTa Purpose-built language Homoiconic language with formal types.
URE C++, Scheme MeTTa chaining Pure MeTTa C++ term-rewriting to MeTTa graph rewrites.
PLN C++, Scheme, URE PLN (MeTTa) Pure MeTTa, PeTTa Adds quantale factor graphs, geodesic control.
MOSES C++, Boost, combo metta-moses Pure MeTTa Full reimplementation with GEO-EVO.
ECAN C++, CogServer agents metta-attention MeTTa, PeTTa Adds optimal transport theory.
OpenPsi Scheme, rule-based MetaMo MeTTa + Python Category-theoretic pseudo-bimonad.
Link Grammar + RelEx C + Java Semantic Parsing Various LG maintained. RelEx deprecated.
GHOST Scheme, ChatScript PRIMUS robotics layer MeTTa + game/robot Minecraft, social robotics, game AI.
CogServer C++, telnet/HTTP DAS + MeTTaCycle C++, Rust, blockchain Distributed queries + ASI Chain.
cogutil C++, v2.2.1 (no direct equivalent) N/A Hyperon Rust codebase provides own infra.