How long before a law firm appears in AI search results?

Why is there no single answer to how long AI visibility takes?

Because an AI answer that names a law firm depends on several inputs that update at different speeds. The engine has to be allowed to crawl the site, has to index the page, has to prefer the page's passage over a competitor's, and has to find the firm corroborated in directories and reviews. A firm that fixes all four at once will still see them arrive in sequence.

The table below lists the five clocks Firm AEO tracks for every engagement. The first two columns come from the engines' and directories' own documentation where it exists. The typical ranges in the last column are Firm AEO's working estimates, labelled as such, not measured averages.

How fast do ChatGPT, Google AI, Perplexity and Copilot pick up a change?

Engines that search the live web pick up a change once their crawler revisits the page. Google's Search Central documentation says crawling can take anywhere from a few days to a few weeks, that requesting a recrawl repeatedly does not speed it up, and that a request does not guarantee inclusion. Google AI Overviews and AI Mode draw on the same index, so that window applies to both.

OpenAI is the only engine that publishes a figure for its own crawler: its bot documentation says it can take about 24 hours from a robots.txt update for its systems to adjust, and that a site blocking OAI-SearchBot will not be shown in ChatGPT search answers. Microsoft Bing, which grounds Copilot, supports IndexNow, a protocol that notifies participating search engines as soon as a page is added or updated rather than waiting for a crawler. Perplexity and Anthropic do not publish recrawl times.

The slowest engine path is the one with no search at all. When ChatGPT, Claude or Gemini answers from model memory without retrieving pages, the answer reflects training data that ends months before the model ships. A firm's work reaches that path only when a new model is released, which no firm can schedule.

What do the published agency timelines say?

The published figures are vendor claims, and the vendors disagree. Lexicon Legal Content's generative engine optimization guide, updated August 28, 2026, says initial AI citation improvements typically appear within 30 to 60 days on low-competition queries, consistent AI Overview citations generally take 3 to 6 months, and high-competition personal injury markets in Florida, California and Texas take 6 to 12 months.

Juris Digital's law firm GEO guide, updated October 4, 2026, declines to give a figure at all, saying there is no fixed timeline because access fixes, content changes and corrections to outside sources take different amounts of time to be reflected. Neither firm publishes a dataset behind its position, so Firm AEO treats both as opinions. One Lexicon claim is contradicted by outside data: the guide says a page not on page one is unlikely to earn an AI Overview citation, while Ahrefs' March 2026 study found only about 38% of AI Overview citations ranked in Google's top ten.

Does new content get cited faster than old content?

Somewhat, but age is not the main factor. Ahrefs' July 28, 2025 study of 16.975 million citations across seven AI platforms found the pages AI assistants cite average 1,064 days old, against 1,432 days for pages in organic results, which Ahrefs describes as 25.7% fresher. ChatGPT's in-text citations were the youngest at 958 days. Google AI Overviews averaged 1,432 days, close to organic search.

The same study's author notes that the average cited page is still 2.9 years old. For a law firm, that means a practice page published last week is not favoured simply for being new, and an older page that already earns citations should be updated in place rather than replaced with a new URL. Keeping the URL keeps whatever history the page has; dating the update keeps the freshness signal.

• •ChatGPT citations: 958 days average age
• •Copilot: 1,056 days
• •Gemini: 1,118 days
• •Perplexity: 1,166 days
• •Google AI Overviews: 1,432 days

What can a law firm reasonably expect at 30, 90 and 180 days?

A reasonable expectation is a sequence of measurable inputs, not a promised share of answers. At 30 days the access and indexing clocks should have run; at 90 days the rewritten pages have had time to compete for passages; at 180 days directory and review work starts to show. The milestones below are illustrative and assume the firm measures monthly with the same prompt set each time.

Under ABA Model Rule 7.1, a firm should not repeat a vendor's timeline in its own marketing as if it were a result, and a vendor that guarantees a date for being recommended by ChatGPT is promising something no vendor controls. The firm's ethics counsel decides how any claim about AI visibility reads under the rule.

• •1. Day 1 to 7: robots.txt confirmed open to the search bots of OpenAI, Anthropic, Perplexity, Google and Microsoft; baseline ledger recorded across the prompt set.
• •2. Day 30: rewritten and new practice pages indexed in Google and Bing; first citations of those URLs may appear on low-competition prompts.
• •3. Day 90: cited-URL column in the ledger shows which pages win passages; directory profiles reconciled to the site.
• •4. Day 180: review recency and directory corroboration in place; share of answers compared against the day-one baseline on identical prompts.
• •5. Every 12 months: directory selection cycles and new model releases checked, because both reset the slowest clocks.