Retro Downfall
Temporary Retro Downfall shield

Retro Downfall

Private beta · Arcanum arrives first

Inference, engineered.

Arcanum is one of the most advanced AI harnesses ever built—local-first, fully Native AOT compatible, and engineered for agentic execution, deep retrieval, durable memory, and operational control. The Forge brings that power into a full-lifecycle Inference IDE.

Apply for Private Beta Discover Arcanum

Arcanum first; The Forge next.

Fully Native AOT
Fast startup and predictable deployment from an architecture built end to end under AOT constraints.
Advanced retrieval
RAG, RAPTOR-style hierarchical retrieval, semantic search, and SQLite FTS5.
Agentic execution
Persistent model-and-tool loops, delegation, Eye of the World workspace perception, and Trials.
Encrypted local-first state
SQLCipher, encrypted artifacts, durable memory, Lexicon, and OATH governance.

One system, clear boundaries

One AI harness gives every surface a shared source of truth.

Configured providers and installed transports
ArcanumAI harness, runtime, and authority
CLI / API
OATH-governed memory
The Forge
Arcanum connects providers, retrieval, memory, tools, and clients to the complete Inference IDE that follows.

Two products, one journey

Build with the engine. Then bring the entire lifecycle into focus.

01 / Arcanum · Private beta first

Arcanum

Command the harness.

One of the most advanced AI harnesses ever built: a local-first, fully Native AOT-compatible engine for sustained agentic work, deep retrieval, durable memory, and operator control.

Execute
Run persistent agent loops with tools, bounded delegation, Eye of the World workspace perception, multi-provider inference, and thin API-first clients.
Retrieve
Bring RAG to workspaces and attachments with semantic Divination and RAPTOR-style Tapestry retrieval.
Remember
Combine Saga associative memory, the Lexicon of durable facts, SQLite FTS5 full-text search, encrypted durable state, and OATH-governed provenance.
Control
Apply Wards, Sanctum, Trials, budgets, audit, backup, retention, and recovery.
Explore Arcanum View Arcanum on GitHub

02 / The Forge · Coming soon

The Forge

The world's first full-lifecycle Inference IDE.

The world's first full-lifecycle Inference IDE—built for the artifacts, context, memory, agents, tools, policy, evaluation, and operations behind inference, not prompt editing alone.

Document
Give inference artifacts and their contracts a first-class home.
Version
Track source, metadata, and active revision together.
Prove
Use Trials, Inquisitors, comparisons, and traces to test the work.
Control
Connect source control, policy, budgets, approvals, and operational visibility.

Inference artifacts deserve the same rigor as code.

Discover The Forge

Private Beta

Start with Arcanum. Help shape what comes next.

One application covers the Arcanum private beta and the road to The Forge.

Apply for Private Beta