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@sqzrDev sqzrDev released this 18 May 10:47
v1.1.0_EN
400ee47

BIBIM v1.1.0

Release date: 2026-05-18

Self-hosted LLM release — Connect BIBIM to your own Ollama, LM Studio, vLLM, or llama.cpp server. Built for teams under NDA, enterprises with data-residency requirements, and heavy users tired of paying per token.

TL;DR

Drop in your local LLM server URL and BIBIM runs on it. No cloud round-trip, no data leaving your network, zero token cost.

What's new

1. Self-hosted local LLM support (NEW)

Connect BIBIM directly to any OpenAI-compatible LLM server running on your corporate GPU, a rented cloud GPU instance (RunPod / Vast.ai), or your own workstation.

Tested setups:

  • Ollama — most common, ideal for personal workstation
  • LM Studio — GUI-first option
  • vLLM — production / corporate GPU cluster standard
  • llama.cpp server — lightweight, works on CPU / Apple Silicon
  • Any other server speaking the OpenAI /v1/chat/completions shape (gateways like OpenRouter included)

Setup matches cloud BYOK friction — one field, one paste:

  1. Settings → Local LLM (Self-hosted) section
  2. Paste the server URL (e.g. http://localhost:11434/v1)
  3. Click Test & Save
  4. Models installed on your server are auto-detected and shown in a picker
  5. Done — start chatting immediately

2. Curated recommended models — BIBIM-validated

We ran an OpenRouter sweep against our Revit 2024 smoke matrix to see which open-weights models actually hold up on Revit API C# (generic coding benchmarks don't translate). Models that support tool calling, 30B+ parameters:

Model VRAM (4-bit) Notes
Gemma 4 26B A4B IT ⭐ ~16GB BIBIM-validated top non-Claude pick. Fits RTX 4090
Codestral 2508 (22B) ~14GB Fastest. Simple tasks only
Llama 3.3 70B Instruct ~40GB+ Won't fit a single 24GB GPU. A100 / dual 3090 class

⚠ Smaller models (≤7B) have low Revit API tool-calling reliability and tend to fail code generation. Non-recommended models still work but result quality is not guaranteed.

3. Authenticated self-hosted setups (Bearer token)

For setups behind auth, the Advanced section now has an API key (Bearer token) field covering:

  • vLLM launched with --api-key <token>
  • Self-hosted LLM behind an authenticated reverse proxy
  • Cloud GPU rental endpoints (RunPod, Vast.ai, etc.) with endpoint keys
  • Tailscale / Cloudflare Tunnel gateway tokens

The value is sent as Authorization: Bearer <value> on every request. Leave blank for default Ollama / LM Studio (no auth).

4. Settings panel UX overhaul

  • Active model chip — One-line summary at the top of the panel: "Active: Claude Sonnet 4.6 · sk-ant-...Ab3c". You always know what's powering BIBIM at a glance.
  • Configured key sections collapse — Provider sections whose key is already saved render as a compact ✓ Key configured: ...Ab3c [Replace] row. Returning users see roughly half the visual density.
  • Single Local LLM entry in the model picker — The three previously-separate OSS options (Gemma / Llama / Codestral) are now one Local LLM (Self-hosted) entry whose note dynamically shows your active server-side model (e.g. Active: gemma2:27b).
  • Section reorder — Guide → Current setup → Provider keys → Model picker → Feedback. Reads top-to-bottom as the actual setup flow.

Automatic migration

When existing v1.0.2 / v1.0.3 users first launch v1.1.0:

  • If claude_model holds an old OpenRouter id (e.g. google/gemma-4-26b-a4b-it), it migrates to "local" and stashes the model fragment as local.model_name
  • A rag_config.json.bak backup is created automatically

→ Existing setup keeps working with no reconfiguration.

One-line marker in the debug log:

[ConfigService]: Migrated saved model id 'google/gemma-4-26b-a4b-it' → 'local' (local.model_name = 'gemma-4-26b-a4b-it', rewrote rag_config.json).

Bug fixes / improvements

Local LLM polish

  • Chat unblocked for unauthenticated Local LLM setups. The pre-flight gate in the user_message handler used to reject any request with an empty ApiKey, which broke the default Ollama / LM Studio install (no auth = empty key is correct). The gate is now provider-aware: Local validates LocalServerUrl, cloud providers validate ApiKey. Error message for Local now points to the URL field instead of misdirecting users to add a key.
  • Friendly guidance when model auto-detect fails — "Settings → Advanced → fill in the model name override" message (previously a confusing 404 error).
  • API key field is now correctly labelled "API key (Bearer token)"; tooltip leads with "Sent as Authorization: Bearer <value> header".
  • Settings panel visual density reduced ~50% for returning users.

Security hardening

  • Auto-updater is now host-whitelisted and time-bounded. The download_update handler accepts only https://github.com / https://objects.githubusercontent.com URLs (defense-in-depth against a hypothetical GitHub Releases compromise or WebView hijack), wraps the full body stream in a 10-minute CancellationTokenSource, and cleans up partial downloads on timeout / network failure. Typed progress messages (timeout / network / untrusted_url) let the UI route specific error toasts.

Analyzer correctness

  • BIBIM001 (Transaction-required) no longer hides missing-Transaction bugs in generated code. The previous heuristic short-circuited as "satisfied" whenever the enclosing method was named Execute — on the false premise that BibimExecutionHandler wraps Execute in an outer Transaction. It does not (RunCommit uses no wrapper; RunDryRun uses a TransactionGroup, which can't host modification APIs directly). Bare doc.Delete(id) inside Execute was passing silently, then either failing at runtime or leaving the document inconsistent. The heuristic now requires a real Transaction using ancestor; TransactionGroup / SubTransaction are explicitly rejected via regex as false-positive satisfiers. Roslyn retry usually auto-fixes the resulting warning, so most users will experience this as "code generation is slightly more robust".

Performance

  • RoslynCompilerService is now a true panel-level singleton. Its constructor scans AppDomain.GetAssemblies() (~100–300 ms each). Six call sites in BibimDockablePanelProvider were calling new RoslynCompilerService() directly despite BibimApp.OnStartup already registering a process-wide instance. Reclaims ~1–2 s of compounded startup work per session.
  • LocalRevitRagService cache fast-path no longer takes a lock. The BM25 engine for search_revit_api builds once per session under a build lock, but cached reads now skip the lock entirely (volatile read + double-check). Parallel search_revit_api tool_use blocks dispatched in a single LLM turn no longer serialize.

Logging

  • Log path moved: %USERPROFILE%\bibim_v3_debug.txt → %APPDATA%\BIBIM\logs\bibim_debug.txt. Matches the rest of the addon's storage layout under %APPDATA%\BIBIM\ and stops leaving an orphan file at the home-directory root. Old logs are not migrated — left in place so you don't lose support artifacts.
  • Diagnostics report now includes a LogFile check that surfaces the current log size and flags the legacy path if a stale bibim_v3_debug.txt is still present.

Code health (no user-visible change)

  • #if NET48 conditional serialization attributes removed across CodeLibraryModels.cs, SessionModels.cs, TaskFlowModels.cs (112 occurrences). JsonHelper uses Newtonsoft.Json on both targets, so the [JsonPropertyName] branch on net8 was being silently ignored at runtime. Single [JsonProperty] now applies to both. −432 lines of zero-value conditional compilation.
  • ConversationContextManager deleted — 122-line class with zero references.
  • GeminiProvider.SendStreamingAsync now parses functionCall + thoughtSignature from SSE chunks and stashes them on StreamResult.ToolUseBlocks for forward compatibility with a future streaming + tools wiring.
  • BibimApp.OnShutdown now logs the exception message if DocumentChanged unsubscribe throws (was swallowed silently).
  • *.tsbuildinfo added to .gitignore so TypeScript's incremental-build cache stops cluttering git status.

UX / i18n

  • Feedback buttons in chat messages now render 👍 Helpful / 👎 Not Helpful (was literal "Up" / "Down" — the i18n keys already existed and were used in tooltips, just not in button labels).
  • Multi-select question card now reads Select all that apply from i18n (was hardcoded English) and is translated in the Korean build.

64 / 64 unit tests passing (3 new tests added for the BIBIM001 heuristic fix; 1 stale test rewritten to assert the corrected behavior).

Affected users

Environment v1.1.0
Cloud BYOK (Anthropic / OpenAI / Gemini) No change — existing keys keep working
Already running self-hosted LLM New option — connect via Local LLM section
NDA / data-residency constraints New option — BIBIM now runs entirely on your infrastructure

Builds

Target Status
Revit 2024 (net48) ✅
Revit 2025 (net8.0-windows) ✅
Revit 2026 (net8.0-windows) ✅
Revit 2027 (net10.0-windows) ✅

Requirements

Source

github.com/SquareZero-Inc/bibim-revit

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