ltcai 4.6.1

Lattice AI — local-first Living Brain workspace: conversation, durable memory, hybrid search, real agent/workflow runtimes, advanced graph exploration, and portable encrypted brain archives

Lattice AI

Lattice AI v4.6.1 is the local-first Living Brain release refresh. It keeps the v4 Brain Core, StorageEngine, FastAPI localhost API, Tauri shell, backup, restore, model runtime, graph, and portability architecture intact while making the release/publishable version 4.6.1 after the v4.6.0 PyPI immutability block.

The product opens with a private local profile, studies the computer, recommends models, asks before install/download/load work, then lands in Brain Chat. The graph is still real and searchable, but it now grows out of the Brain as the deepest exploration layer instead of acting like a separate dashboard.

External package registries are owner-published and can lag behind this GitHub Release. Release uploads must use the exact v4.6.1 artifact filenames below.

Living Brain Flow

1. Login

First launch opens to Login only. The local profile is the beginning of the Brain, not a dashboard, graph, or setup grid.

2. Environment Analysis

Lattice reads the machine locally and summarizes what kind of Brain this computer can support.

3. Recommended Models

The model step is a short recommendation list. It avoids catalog noise and keeps runtime/install details behind clear user consent.

4. Install And Load

The install screen keeps consent visible and shows install, download, validate, and load progress. No model download or runtime install starts silently.

5. Brain Chat

After setup, the home experience is the living Brain plus conversation. The Brain stays present while the user types, recalls context, and receives responses.

Brain Depths

The user travels inward through the Brain. Each depth keeps conversation nearby while revealing more structure.

Depth	Experience	Evidence
Level 1	Living Brain presence
Level 2	Memory Layer
Level 3	Knowledge Layer
Level 4	Relationship Layer
Level 5	Knowledge Graph with nodes, edges, search, and focus detail

Walkthrough:

Model setup status evidence:

Screenshot index and capture notes: output/release/v4.6.1/SCREENSHOT_INDEX.md

Architecture At A Glance

• Desktop shell: Tauri 2 is the release desktop shell and starts the localhost sidecar.
• Frontend: React, TypeScript, Vite, TanStack Query, Zustand, Cytoscape.js, React Flow, Tailwind/shadcn-style primitives, and generated OpenAPI types.
• Backend: FastAPI on localhost is the UI source of truth.
• Brain Core: independent lattice_brain package for graph, memory, context, conversations, ingestion, runtime, workflow, storage, and portability. Isolation tests prevent lattice_brain from importing latticeai.
• Storage: StorageEngine abstraction with SQLite default and optional PostgreSQL/pgvector scale mode.
• Portability: encrypted .latticebrain archives plus backup, restore, inspect, verify, import dry-run, and confirmed restore/import flows.
• Privacy: local-first and private-first by default. Cloud models, Telegram, Brain Network, Docker/Postgres setup, model downloads, and update checks are opt-in paths.

See ARCHITECTURE.md for the detailed v4.6.1 architecture.

Installation

Run from Python:

pip install ltcai
LTCAI

Run from npm:

npm install -g ltcai
ltcai

Open the local app:

http://127.0.0.1:4825/app

Apple Silicon local model extras:

pip install "ltcai[local]"

Release Artifacts

Validated v4.6.1 artifacts:

• dist/ltcai-4.6.1-py3-none-any.whl
• dist/ltcai-4.6.1.tar.gz
• ltcai-4.6.1.tgz
• dist/ltcai-4.6.1.vsix
• src-tauri/target/release/bundle/dmg/Lattice AI_4.6.1_aarch64.dmg

Attach only those exact files to the GitHub Release. Do not upload dist/*.

Local Development

npm install
npm run dev

Build and validate release artifacts:

npm run release:artifacts
npm run release:validate

Main validation set:

npm run check:python
node scripts/run_python.mjs -m ruff check .
npm run lint
npm run typecheck
npm run test:unit
npm run test:integration
npm run test:visual
npm run desktop:tauri:check
node scripts/run_python.mjs scripts/wheel_smoke.py --wheel dist/ltcai-4.6.1-py3-none-any.whl
npm pack --dry-run
npm run docs:check-links

Known Limitations

• External package registries are owner-published and can lag behind the GitHub Release.
• PostgreSQL/pgvector is optional scale mode. SQLite is the default local brain.
• Docker, model downloads, cloud model calls, Telegram, Brain Network, and update checks require explicit user action.
• Conversation does not fabricate answers when no model is loaded.
• Agent/workflow simulation without a loaded LLM is deterministic and does not call a model. It is labeled as LLM-free/model-free rather than presented as autonomous model success.
• Historical artifacts can remain in dist/; uploads must use exact v4.6.1 filenames.

Release History

Version	Theme
4.6.1	Living Brain Release Refresh: publishable version bump after v4.6.0 PyPI immutability, refreshed README/screenshots/GIFs, synchronized release docs, and exact v4.6.1 artifacts
4.6.0	Living Brain Experience: made Brain plus conversation the home product, added an animated living Brain presence, and moved graph exploration to the deepest intentional layer
4.5.1	Product Reimagining RC: replaced the desktop shell, navigation model, onboarding journey, first-viewport hierarchy, and visual system while preserving capabilities and local-first architecture
4.5.0	Product Experience Recovery RC: restored first-run setup, workspace/model onboarding, explicit model install/download/validate/load flow, Gemma 4 runtime compatibility gating, Basic-mode polish, and graph discoverability
4.4.0	Brain Engine Extraction: Brain Core physically moved into lattice_brain with isolation tests
4.3.3	Dead-Code Cleanup Release
4.3.2	Product Polish & Graph UX Overhaul RC
4.3.1	End-User Audit Repair RC
4.3.0	Portability & Product Hardening RC
4.2.0	Brain Core & Storage Rebuild
4.1.0	Frontend & Desktop Rebuild
4.0.1	Digital Brain maintenance
4.0.0	Digital Brain Platform foundation
3.0.0	v3 local-first AI workspace platform

Current Documentation

• ARCHITECTURE.md - v4.6.1 architecture.
• FEATURE_STATUS.md - current feature status and historical status ledger.
• RELEASE_NOTES.md - release notes index.
• RELEASE_NOTES_v4.6.1.md - v4.6.1 release refresh notes.
• RELEASE_NOTES_v4.6.0.md - v4.6.0 Living Brain history.
• RELEASE.md - release checklist and exact artifact guidance.
• SECURITY.md - security posture.
• docs/CHANGELOG.md - changelog.
• docs/V4_6_1_RELEASE_REFRESH_REPORT.md - v4.6.1 release refresh report.
• docs/V4_6_0_LIVING_BRAIN_EXPERIENCE_REPORT.md - v4.6.0 Living Brain design notes.

License

MIT. See LICENSE.