Prompt size at turn 12
45× smallerCrystal footprint vs raw-accumulating at the final turn. Crystal: 1,360 tokens. Raw accumulating: 61,146 tokens — 45× larger and growing every call.
Construction and Architecture plan
Check code, spec and permit questions against one shared project reference.
A prepared library of building-code concepts, specification language, permitting terminology and project-handoff vocabulary for architects, engineers and project managers. Start the free trial with the reference layer, and add your authorized project documents when you are ready.
Start free 7-day trial · $4,000/mo
Free for 7 days. Card required. Monthly credit allowance included.
Multi-turn benchmark
Instruction retention varied across arms through 12 turns.
Three arms, same underlying model, same question set — no context, raw-accumulating, hosted crystal. At turn 12 the crystal sent 1,360 tokens; the raw arm sent 61,146 — 45× more, compounding every call.
Instruction retention
Mixed retentionA formatting rule planted at turn 1 was checked deterministically every subsequent turn. No-context retained it through all checkable turns. Crystal: 1 / 2 checkable turns held.
Answer quality — 12 turns
No degradation detectedAll three arms produced substantive answers through turn 12 with no meaningful quality decline. The separating factors are prompt size and instruction retention, not raw answer quality.
How this was run. 12 turns, Construction and Architecture vertical, The same model held constant across all three arms. Raw-accumulating arm: source corpus injected at turn 1, then full conversation history re-sent on every subsequent turn — the window grows every call.
Subscription
$4,000/mo for Construction and Architecture.
Free for 7 days, then a workspace subscription. Card required. It starts with a shared code, spec and permitting reference; project documents are connected when you decide.
Monthly allowance
5,500,000 credits/mo
Up to 18M raw-token-equivalent of shared built-environment reference, queryable from day one.
Why this can cost less
Raw RAG can inflate every prompt with retrieved text. The crystal keeps shared operating judgment compact and reusable, so teams buy a monthly memory layer instead of repeatedly paying for larger, noisier context windows.
Context crystals
Representative coverage.
Each plan includes protected access to prepared industry memory across the recurring work areas below. Your team sees the benefit in chat while the library's source construction remains private.
Code and Permit
Orient a permit or code question. Example question: “What do reviewers in this jurisdiction typically look for in a submittal?”
- Building-code concept orientation
- Permit-submittal language cues
- Jurisdiction review topic taxonomy
Specifications
Check spec language and scope boundaries. Example question: “Where does this trade’s scope end and the next begin?”
- Material specification language checks
- Trade scope relationship cues
- Submittal and closeout terminology
Project Handoffs
Sort RFIs and coordinate drawings. Example question: “What kind of issue is this RFI, and who usually owns it?”
- RFI issue classification
- Drawing coordination vocabulary
- Construction administration review cues
Try the Construction and Architecture library free for 7 days.
$4,000/mo after the free trial. Or talk to us about a rollout built around your team.