How much does search over internal documents for law firms and legal teams cost?
Search over internal documents for law firms and legal teams typically costs about $6,400. Half of the 16 priced job posts we tracked fall between $400 and $18,350, and one in ten reaches $32,400 or more.
Band: 25th to 75th percentile of fixed budgets and hourly estimates. Line: median.
Key facts
- Typical cost: $6,400, with the middle half of posts between $400 and $18,350.
- That is 156% above the $2,500 median across all AI builds we track.
- Most posts expect one to three months, with a median of $1,500.
- Fixed-price median $250; hourly estimate median $16,200.
- Hourly rates mostly run from $28 to $88 an hour.
- Most requested skills: Python, Artificial Intelligence and React.
What the build includes
Search over internal documents lets staff ask questions in plain language and get answers from company files with sources, using retrieval-augmented generation (RAG) rather than training a model.
Legal builds put confidentiality first. Privileged documents need strict access controls, answers need citations, and a lawyer stays responsible for anything sent to a client or court.
A typical scope
- Ingestion from drives, wikis and databases
- Text splitting and embedding
- A vector store and retrieval logic
- A chat or search interface with citations
- Access control so people only see what they should
Systems it usually connects to
- Practice management software
- Document management systems
- E-signature tools
- Court and research databases
What drives the cost
Most posts expect one to three months, with a median of $1,500. Part of that gap is built in, because hourly estimates are calculated from expected length. Fixed-price posts state a median of $250, while hourly posts work out at $16,200 on our estimate: 65 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work.
| Expected length | Median cost | Priced posts |
|---|---|---|
| Under 1 month | Too few posts | 1 |
| 1 to 3 months | $1,500 | 11 |
| 3 to 6 months | Too few posts | 3 |
| Over 6 months | Too few posts | 1 |
Posts asking for expert-level talent have a median of $11,200, 75 times the $150 for intermediate talent. 64% of posts ask for experts.
| Seniority requested | Median cost | Priced posts |
|---|---|---|
| Entry level | Too few posts | 0 |
| Intermediate | $150 | 5 |
| Expert | $11,200 | 11 |
What moves the price most
- How many sources there are and how messy the documents are
- Permissions, which are often harder than the AI
- How accurate answers must be, which sets the testing effort
Skills and hourly rates
The skills named most often in these posts are Python (55%), Artificial Intelligence (32%), React (27%) and LangChain (23%). Read this as the working stack for this kind of build, and as a checklist when assessing who should do it.
Hourly posts for this work typically offer $28 to $88 an hour, the middle half of posted rates. The median top of the range is $85 an hour across 9 hourly posts. These are rates in the open freelance market: agencies and in-house teams usually cost more.
Who is buying
64% of posts ask for expert-level talent. A typical post draws about 16 applicants.
What to check before you commit
- Make sure document permissions carry through to answers
- Build a test set of real questions with known answers
- Decide how new and changed documents get re-indexed
Frequently asked questions
How much does search over internal documents for law firms and legal teams cost?
Search over internal documents for law firms and legal teams typically costs about $6,400. Half of the 16 priced job posts we tracked fall between $400 and $18,350, and one in ten reaches $32,400 or more. That is 156% above the $2,500 median across all AI builds we track.
How long does search over internal documents for law firms and legal teams take?
14% of posts expect the work done in under a month, 64% in one to three months and 22% over a longer stretch. Most posts expect one to three months, with a median of $1,500.
Why do estimates vary so much?
Fixed-price posts state a median of $250, while hourly posts work out at $16,200 on our estimate: 65 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work. Scope matters most: how many sources there are and how messy the documents are and permissions, which are often harder than the AI move the price the most.
What hourly rate should I expect?
Most hourly posts offer $28 to $88 an hour, with a median top rate of $85. Agencies and in-house specialists usually charge more than the open freelance market.
What skills does this work need?
Posts most often ask for Python, Artificial Intelligence, React and LangChain.
Do I need an expert?
Posts asking for expert-level talent have a median of $11,200, 75 times the $150 for intermediate talent. 64% of posts ask for experts.
Does the industry change the price?
For law firms and legal teams, the median of $6,400 is above the $2,150 median for search over internal documents across all industries. Legal builds put confidentiality first. Privileged documents need strict access controls, answers need citations, and a lawyer stays responsible for anything sent to a client or court.
Where do these numbers come from?
From 16 public job posts published between December 2025 and November 2026: 7 fixed budgets as stated and 9 hourly posts we costed from their rate, expected length and assumed hours. They are what buyers offered, not signed contract prices.
About this data
These figures come from 16 public job posts published between December 2025 and November 2026: 7 fixed budgets as stated, and 9 hourly posts costed from their rate, expected length and assumed hours. They show what buyers offered, not signed contract prices, and hourly figures assume the work runs its full length. Read the method
Cite this page. The AI Build Index. "Search over internal documents for legal: what it costs." Published by VIZIO AI. Updated 2026-11-04. https://aibuildindex.com/cost/document-search-rag-for-legal
Get this page as JSON or Markdown.
We also build these systems, so we have a stake in this market. How the index is built.
Search over internal documents, other industries
Other builds for legal
Have a scope? Get a fixed price.
Send the brief and get a fixed price and timeline within one working day, set next to this range.