Meet PJT-1.
PJT-1 is an intelligent AI partner that works with your team, understands your business, and powers enterprise AI.
Not a chatbot.
A partner.
PJT-1 isn't a model that just answers — it understands your work and acts alongside your team.
Works with your team
Collaborates with people and partners to get real work done.
Understands your business
Grasps the context of your projects, docs, and knowledge.
Powers enterprise AI
Drives search, assist, and agents behind the scenes.
Operates safely
Guardrails and governance you can trust.
See how PJT-1
thinks.
Given a question, PJT-1 understands context, retrieves knowledge, reasons with evidence, then answers or acts.
The intelligence engine
behind the workspace.
PJT-1 indexes the workspace, understands context, reasons with evidence, and acts through agents.
Ingest
Index documents, messages, and tasks.
Understand
Grasp the workspace context.
Reason
Reason to grounded answers.
Act
Take action through agents.
The capabilities
under the hood.
The pieces that add workspace intelligence on top of foundation models.
Workspace Context
Understands projects, docs, and threads.
- Projects
- Docs
- Conversations
- Tasks
Knowledge Retrieval
Answers grounded in your own data.
- Grounded answers
- Citations
- Semantic search
- Freshness
Multi-model
Picks the best model per task.
- Best model per task
- Routing
- Fallbacks
- Cost-aware
Reasoning & Planning
Breaks complex work into steps.
- Decompose
- Multi-step
- Tool use
- Self-check
Memory
Remembers context and carries it forward.
- Short & long term
- Per-workspace
- Recall
- Continuity
Guardrails
Safe input and output controls.
- I/O filters
- PII redaction
- Policy
- Safe tools
Evaluation
Continuously measures quality.
- Quality metrics
- Regression evals
- Feedback
- Monitoring
API
A developer API to embed in your product.
- REST & SDK
- Webhooks
- Streaming
- Agents
Build on top
of PJT-1.
Embed PJT-1 into your product in a few lines, compose agents, and get governance built in.
Embed via API
Add it to your product in a few lines.
Build agents
Compose agents that take real actions.
Govern & evaluate
Guardrails, audit, and continuous evals.
// Ask PJT-1 about your workspace import { PJT1 } from "@apexstack/pjt1"; const pjt = new PJT1({ apiKey: process.env.PJT1_KEY }); const answer = await pjt.ask({ query: "Why did checkout conversion drop?", workspace: "acme", ground: true, // cite sources }); console.log(answer.text, answer.citations);
Start building
with PJT-1.
Create a workspace and see the moment AI understands your work.