Product Liability Lawyers: AI Market Discovery Index

Benchmark Summary

The Lanier Law Firm led valid recommendation coverage in September 2026 at 30.1%, down from 45.2% in July 2026. The market leader's coverage fell 15.1 percentage points over two months. The gap to the next brand, Morgan & Morgan, was 2.9 percentage points in September 2026. The largest coverage increase was Wilshire Law Firm, rising to 12.0% in September 2026 from 8.0% in July 2026. The largest coverage decline was The Lanier Law Firm, falling to 30.1% in September 2026 from 45.2% in July 2026, a drop of 15.1 percentage points.

Movement this month was significant for four brands, all declines. The Lanier Law Firm fell 15.1 percentage points from baseline, Weitz & Luxenberg fell 13.0 points, Baron & Budd fell 9.6 points, and Motley Rice fell 5.6 points. Each of these four brands declined in each of the two months since July 2026, indicating a sustained rather than one-off shift. No brand posted a significant increase this month; Wilshire Law Firm's coverage rose in each month of the series, reaching 12.0% in September 2026 from 8.0% in July 2026, yet remained within normal month-to-month variation, and its rank-one rate moved from 0.0% in July 2026 to 3.5% in September 2026.

The benchmark began with 670 prompt-surface observations in September 2026 and produced 316 qualified observations after qualification.

Current Benchmark at a Glance

Qualified surface breadth counts the number of canonical AI surface families with at least one qualified observation. The six families are ChatGPT, Copilot, Gemini, Perplexity, AI Overviews, and AI Mode. August 2026 sat between these months with 262 qualified observations.

For the strategic interpretation of this benchmark, read CiteWorks Studio's analysis of How AI Search Is Recommending Product Liability Lawyers

Research Scope and Qualification

The public benchmark is narrower than the raw collection universe by design.

Brand-level percentages use the qualified observations as the public denominator, not the raw collection. AI Market Discovery Methodology

Current Brand Standings

How to Read the Standings

• Presence rate: share of qualified observations where the brand is mentioned in any context.
• Valid recommendation coverage: share of qualified observations where the brand receives a valid recommendation.
• Top-three rate: share of qualified observations where the brand appears among the top three recommendations.
• Rank-one rate: share of qualified observations where the brand is the first or primary recommendation.
• Net sentiment: share of positive mentions minus negative mentions, divided by total mentions.

For formulas and denominator rules, see AI Market Discovery Metric Definitions.

Recommendation Coverage Movement

Largest Decline: The Lanier Law Firm

The Lanier Law Firm fell 15.1 percentage points in valid recommendation coverage, from 45.2% in July 2026 to 30.1% in September 2026, declining in both months of the series. Despite the drop, the brand remains the category leader. Its presence rate dropped 14.1 points to 34.8%, and its top-three rate fell 14.8 points to 19.9%. The monthly move from August 2026 to September 2026 was a further 4.3-point decline.

Largest Decline: Weitz & Luxenberg

Weitz & Luxenberg declined 13.0 percentage points, from 37.7% in July 2026 to 24.7% in September 2026, declining in both months of the series. Its presence rate fell 10.8 points to 31.0%, and its top-three rate dropped 11.1 points to 21.5%.

Largest Decline: Baron & Budd

Baron & Budd declined 9.6 percentage points, from 16.3% in July 2026 to 6.7% in September 2026, declining in both months of the series. The largest single-month move was 9.4 points between July and August 2026, suggesting most of the loss occurred early. Its presence rate fell 9.2 points to 7.6%.

Largest Decline: Motley Rice

Motley Rice declined 5.6 percentage points, from 8.8% in July 2026 to 3.2% in September 2026, declining in both months of the series. Its presence rate fell 6.5 points to 7.3%, and its top-three rate dropped 4.1 points to 2.2%. The move from August 2026 to September 2026 was a 4.0-point decline, its largest single-month move.

Category Leader: The Lanier Law Firm

The Lanier Law Firm held the lead in September 2026 at 30.1%, down 15.1 points from 45.2% in July 2026. Morgan & Morgan's presence rate rose to 60.4% in September 2026, the highest presence rate in the category. The leader's rank-one rate of 2.5% was well below Morgan & Morgan's 11.1%, meaning the coverage leader is not the first-choice leader.

Recommendation Placement Snapshot

Coverage alone does not show how prominently a brand is recommended. Morgan & Morgan led both top-three and rank-one rates among the leading brands in September 2026.

Close coverage can hide different first-position rates. Weitz & Luxenberg held a top-three rate 4.4 points above Morgan & Morgan in September 2026, yet its rank-one rate was 4.1 points lower, while The Lanier Law Firm's top-three rate exceeded Morgan & Morgan's by 2.8 points but carried a rank-one rate 8.6 points lower. Morgan & Morgan converts modest top-three placement into first-choice recommendation far more effectively than its higher-coverage competitors.

Buyer-Intent Distribution

All qualified observations in both months fell into the Brand Recommendation class.

The current public series measures brand recommendation discovery only and cannot answer pricing, value, or head-to-head comparison questions. August 2026 also held 262 observations in the Brand Recommendation class.

Historical Measurement Record

This is an evergreen benchmark URL. New measurements are added to the same report.

Evidence and Source Layer

The benchmark is built from prompt-level observations that retain the query, AI/search surface, answer, brand outcome, recommendation placement, sentiment, and where exposed, citations or attributable evidence sources. Source presence is evidence about the information environment. It is not automatically proof that the source caused the recommendation.

Scope Boundaries

This public benchmark does not measure:

• Market share or attributable sales
• Every possible AI response to every possible query
• Organic-search ranking performance
• Social media mention volume
• Private or sponsored channels
• Causality from a metric movement alone

A single movement, even a large one, should not be treated as causal without further investigation.

About This Benchmark

The LLM Authority Index AI Market Discovery Index tracks how often and how prominently brands appear in AI-generated answers, providing a neutral, repeatable measure of AI visibility and recommendation patterns across the product liability lawyers vertical.

• AI Market Discovery Methodology
• AI Market Discovery Metric Definitions
• AI Market Discovery Research Standards
• Modeled AI Authority Value

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The public industry benchmark shows category-level standings. It cannot identify the specific prompts, competitors, or sources driving an individual brand's result.

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