Intapp Celeste Review: What Professional Services Firm Owners Need to Know (2026)

Published: May 1, 2026 | By: The Crossing Report

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You have probably started hearing the name Intapp Celeste. A conference speaker mentioned it. A vendor referenced it in an email. A colleague at a larger firm brought it up. If you are looking for a straight Intapp Celeste review — one that tells you whether this matters for your 10- or 20-person firm or whether it is another enterprise product dressed up in practitioner language — this is it.

No product marketing. No press release summary. Here is the honest assessment.

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What Is Intapp Celeste?

Intapp launched Celeste on February 25, 2026. It is an agentic AI platform built specifically for professional services firms — law, accounting, consulting, investment banking, and private capital. "Agentic" means the software can take multi-step actions on your behalf rather than just answering questions. It is not a chatbot that responds when you type. It is a system that runs workflows — checking conflicts, summarizing client history, identifying business development opportunities — without you prompting each step.

The platform runs on Claude (Anthropic), which is the same underlying language model that powers many of the AI tools the broader market is currently building on. What Intapp adds on top of Claude is what makes Celeste distinct.

The Context Engine — How It Learns Your Firm

The Celeste Context Engine is Intapp's answer to the core problem with generic AI: it doesn't know your firm.

When you ask a generic AI about a client or matter, it has no idea which clients your firm serves, how you work, what your billing patterns look like, or what terminology is specific to your practice. The Context Engine ingests firm-specific data — client relationship networks, matter history, billing patterns, terminology, and methodological practices — so that Celeste's outputs are grounded in your actual firm context rather than general training data.

This is the difference between "draft a client memo on this legal issue" and "draft a client memo for ABC Corporation based on our prior work on the restructuring matter last spring, using our standard formatting and the terminology from the client's industry." The second version is what a senior associate actually knows how to do. The Context Engine is what gives an AI system that same grounding.

The Governed AI Framework — Why Compliance Matters Here

Professional services firms have constraints that general businesses don't: ethical walls, independence requirements, MNPI (material non-public information) restrictions, attorney-client privilege, conflicts clearance.

A generic AI tool has no concept of any of these. You can instruct it to be careful, but it has no mechanism to enforce an ethical wall between two client matters, and it cannot check a new client against your conflicts database before you accept the engagement.

Celeste's Governed AI framework is built around this. The system applies firm compliance standards automatically — it knows which staff members are walled off from which matters and which information should not cross those walls. For law firms and accounting firms with complex client portfolios, this is not a nice-to-have. It is a prerequisite for using AI on real client work.

For a deeper look at why professional services compliance requirements create a distinct product category, see our earlier analysis on why generic AI tools fall short for professional services firms.

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What Intapp Celeste Actually Does (The Four Core Use Cases)

Intapp has announced four primary use cases for Celeste. Here is what each one means in practice.

Client Intake and Conflicts Clearance

This is the most operationally valuable use case for most professional services firms. Every time you consider taking on a new client or matter, you need to clear it against your existing client relationships to identify conflicts. At a small firm, someone does this manually — often by searching email, client management software, and memory.

Celeste automates this against your full matter history. When a new intake arrives, the system runs a conflict check, surfaces related prior matters, flags risk areas, and generates a clearance summary. What used to take a paralegal or administrator 30–60 minutes can be completed in minutes, with more thoroughness.

Business Development and Cross-Selling

Celeste analyzes your existing client relationships — matter history, industry, services purchased — and identifies where you have natural cross-sell or expansion opportunities you may not be actively pursuing. If a client used you for one service two years ago and has since expanded, Celeste can surface that as an outreach opportunity.

For small and mid-size professional services firms, this is relationship intelligence that was previously available only to large firms with CRM systems and dedicated BD staff. Most 10–30 person firms are leaving obvious cross-sell revenue on the table because they don't have visibility across the client base.

Work Delivery — Research, Drafting, Matter Management

This is the use case most people imagine when they think of AI in professional services: automated research, document drafting, matter summaries. Celeste provides this, and importantly, it does it within your compliance framework — so research output is grounded in your matter context and constrained by your ethical walls.

This is where comparison to tools like Harvey matters most. Harvey is deeply focused on legal research and document quality. Celeste's work delivery capability is broader (it serves accounting and consulting firms, not just law) but may not match Harvey's raw quality on pure legal work. More on this below.

What It Does NOT Do

Celeste is not a standalone billing system, a financial management tool, or a client-facing portal. It is a workflow AI layer that sits on top of your existing systems. If your practice management infrastructure is disorganized — matters not properly tagged, client data scattered — Celeste will reflect that disorganization back at you. The quality of Celeste's output depends directly on the quality of the data you bring to it.

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Is Intapp Celeste Built for a Firm Your Size?

This is the question the product page won't answer directly. Here is the honest answer.

Intapp's Historical Market Position

Intapp (NASDAQ: INTA) is a mid-market to enterprise software company. Their core products — DPS Conflicts, Intapp Time, Intapp Intake — are standard infrastructure at firms with 50–500+ professionals. Intapp's commercial relationships are generally with firms large enough to have dedicated IT or practice technology staff.

Celeste inherits this market positioning. As of May 2026, it is in limited release and pricing is not publicly disclosed. The pattern with Intapp products is that they are enterprise-licensed and require implementation support. A 10-person firm is generally not who this product is built for — at least not yet.

Signals That Suggest When a Firm Should Look at Celeste

Despite the enterprise tilt, there are conditions under which a smaller firm should pay attention:

• You already use Intapp products (DPS, Intapp Time). Adding Celeste is an incremental layer, not a new vendor relationship.
• You have 30+ professionals and your conflicts process is consuming significant administrative time.
• Your firm regularly handles multi-party matters where conflicts complexity is genuinely high (M&A, complex litigation, large audit clients).
• You are preparing for growth to 50+ professionals and want infrastructure that will scale.

If none of these apply, Celeste is worth monitoring as a horizon signal, but it is not a practical evaluation for today.

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Intapp Celeste vs. Other Agentic AI Options for Professional Services

vs. Harvey (Law Firm AI)

Harvey raised at an $11 billion valuation in 2025 and now processes thousands of workflows daily across BigLaw and mid-size law firms. Harvey is built almost exclusively for legal work — research, drafting, due diligence, document review. It is widely considered best-in-class for the quality of legal output.

Celeste and Harvey are targeting different problems. Harvey helps lawyers do legal work faster and better. Celeste helps professional services firms run their business operations — intake, BD, conflicts, client management — with AI embedded in the workflow. A large law firm might use both. A 15-person firm choosing between them should evaluate which problem is costing them more time: work quality or operational overhead. For more on Harvey's current capabilities for smaller firms, see our analysis of Harvey's expansion and what it means for small law firms.

vs. Microsoft Copilot + Copilot Studio

Microsoft Copilot is available to any firm on Microsoft 365 at $30/user/month (Copilot for Microsoft 365). It integrates with Word, Outlook, Teams, and SharePoint. Copilot Studio allows firms to build custom agents on top of their Microsoft environment.

Compared to Celeste, Copilot is horizontal — it was not built with professional services compliance in mind. It has no native concept of ethical walls, conflicts clearance, or matter-level information barriers. A firm can attempt to build those constraints into Copilot Studio, but it requires technical configuration and ongoing governance. Celeste has them built in.

Copilot's advantage: it is available now, at a known price, to any firm that already pays for Microsoft 365. For firms below 30 professionals who cannot access Celeste, Copilot with careful configuration is the practical alternative today.

vs. Building Custom Agents on Claude

Some technically inclined firm owners have begun exploring building their own agentic workflows directly on Anthropic's Claude API. This is viable, and firms with a developer on staff or an IT vendor can build targeted agents for specific workflows.

The tradeoff: custom-built agents on Claude are powerful but require ongoing maintenance, compliance review, and prompt engineering. They are not pre-configured for professional services governance. Celeste's value proposition is that the governance layer is already built, tested, and maintained by a company that specializes in professional services software. For a 12-person firm without technical staff, that out-of-the-box governance is worth paying for — if you can access it.

For the governance considerations that apply regardless of which platform you choose, see our review of AI governance frameworks for law firms and professional services.

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The Bottom Line: Is Intapp Celeste Worth Evaluating in 2026?

If you have 50+ professionals and already use Intapp: Yes, you should be requesting a demo. The limited release window is an opportunity to be among the first firms with production experience on the platform.

If you have 20–50 professionals and a complex client portfolio: Yes, with the expectation that implementation will be heavier than the product page suggests. Budget 90–120 days for data preparation and rollout. Evaluate whether your current conflicts and intake processes are costing enough time to justify the investment.

If you have under 20 professionals: Monitor it, but do not prioritize it for 2026. The ROI is unlikely to justify the cost and implementation complexity at your scale. Your practical alternatives — Clio's agentic AI capabilities for law firms, Karbon's automation for accountants, purpose-built intake tools — will deliver faster payback.

The broader signal from Celeste's launch is worth paying attention to regardless of firm size: the professional services AI market is maturing rapidly from point tools (chatbots, document drafters) to full agentic platforms that run across your firm's workflows. Firms that are building their data infrastructure now — organized matter histories, clean client data, documented processes — are the ones that will be able to plug into platforms like Celeste when they become accessible at smaller firm sizes.

That infrastructure work is the thing to do today.

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The One Action for This Week

Pull your conflicts clearance process into a document. How long does it currently take? Who does it? What information do they check and where? This is the baseline measurement that any AI evaluation — Celeste, Copilot, or something else — needs to start from. If you don't know your current process cost, you can't evaluate whether any tool is worth the investment.

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Sources:

• Intapp press release: "Intapp Announces Celeste: Agentic AI for Professional Firms" (February 25, 2026)
• CPA Practice Advisor: "Intapp Launches Agentic AI Platform for Professional Firms" (February 25, 2026)
• intapp.com/celeste — product overview and use case documentation
• Anthropic/Claude partnership: Intapp launch announcement (February 2026)

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Related Reading

• Why Generic AI Tools Don't Work for Your Firm — And What Purpose-Built Tools Are Getting Right
• Harvey at $11 Billion: What the Legal AI Arms Race Means for Your 15-Person Firm
• AI Governance Frameworks for Law Firms: Allrize GRC and Microsoft Purview