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
Free for 7 days. No card required. 30,000 credits and the full Construction and Architecture library. Sign in with Google or Apple using your work email. Keep it after the trial at $4,000/mo.
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.
Free trial
Try it free for 7 days.
Free for 7 days. No card required. Keep it after the trial from $4,000/mo. It starts with a shared code, spec and permitting reference; project documents are connected when you decide.
Your 7 free days
$0
Free for 7 days. No card required. 30,000 credits and the full Construction and Architecture library. Sign in with Google or Apple using your work email.
If you keep it
$4,000/mo · about $133 a day
5,500,000 credits/mo. Up to 18M raw-token-equivalent of shared built-environment reference, queryable from day one. Choose it when your trial ends; nothing is charged until you do.
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.
Free for 7 days. No card required. 30,000 credits and the full Construction and Architecture library. Sign in with Google or Apple using your work email. Keep it after the trial at $4,000/mo, or talk to us about a rollout built around your team.
Use cases
What Construction and Architecture teams run on it.
Starting points to test during the free trial. Your professionals keep every judgment; the library supplies shared reference.
Code and permit questions
Ask which code provision or permit path applies to a design question and get a consistent first read before the plan check.
Specification checks
Compare a spec section against shared reference to find the questions to raise before it goes to the contractor.
Project handoff briefs
Summarize what the next team needs to know at design-to-construction and construction-to-operations handoffs.
Connect it to your work
Build it into the way your team already runs.
Two HTTPS calls. Create a handle for your own authorized material with /v1/compress, then ask questions with /v1/context/run. Call it from a scheduled job, a webhook or an internal tool, and post the answer where your team already works. See the API docs.
Shared project workspace
Architects, engineers and contractors ask against the same prepared built-environment reference, with project files connected as authorized.
Scheduled RFI and submittal digests
Call /v1/context/run each day over new RFIs and submittals and post the questions that need an engineer's eye.
Sensor and site-report triggers
When an inspection report or site sensor alert is logged, trigger a run call that returns the relevant code and spec questions to the project engineer.
FAQ
Common questions.
Read the published evaluation or the guide to source-grounded answers.
Does it replace the code official or engineer of record?
No. It provides shared reference and consistent first reads. Determinations and stamped decisions stay with the responsible professionals.
Can we connect our project documents?
Yes, when authorized. Project files go through /v1/compress; the shared library works before any project file is connected.
How strong is the evidence?
In our published evaluation the library scored +0.55 versus no context and +0.52 versus raw retrieval. Some thread-level checks in that evaluation were thin, so run it on your own representative questions during the free trial.
What does the Construction and Architecture plan include?
Free for 7 days. No card required. 30,000 credits and the full Construction and Architecture library. Sign in with Google or Apple using your work email. Keep it after the trial at $4,000/mo with 5,500,000 credits per month.