POS Systems: AI Market Discovery Index

Benchmark Summary

Square remains the coverage leader in the POS Systems benchmark, with valid recommendation coverage of 55.2% in August 2026, down from 73.0% in July 2026. The gap to the next brand, Lightspeed at 50.5% in August 2026, stands at 4.7 percentage points. The largest coverage increase was Epos Now, which rose from 5.7% in July 2026 to 6.1% in August 2026. The largest decline was Square, which fell from 73.0% in July 2026 to 55.2% in August 2026.

This was a month of significant movement, with eight of the ten tracked brands posting declines beyond normal month-to-month variation. Beyond Square, other notable decliners included Clover (Fiserv, Inc.) falling from 60.8% in July 2026 to 45.1% in August 2026, Toast dropping from 64.6% to 48.4%, and Lightspeed declining from 65.6% to 50.5%. The category-wide pullback in recommendation coverage was accompanied by lower presence rates across most brands. The benchmark records this pattern; it does not establish why presence and recommendation coverage moved together this month.

The benchmark began with 800 prompt-surface observations in each month and produced 630 qualified observations in July 2026 and 641 in August 2026 after qualification.

Current Benchmark at a Glance

Qualified surface breadth counts the canonical AI surface families with at least one qualified observation, which are ChatGPT, Copilot, Gemini, Perplexity, AI Overviews, and AI Mode. The benchmark held full breadth across all six families in both months.

For the strategic interpretation of this benchmark, read CiteWorks Studio's analysis of How AI Search Is Recommending POS Systems

Research Scope and Qualification

The public benchmark is narrower than the raw collection universe by design. The funnel below shows how observations are progressively qualified.

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

Current Brand Standings

This table is the primary current-month benchmark view, sorted by valid recommendation coverage.

How to Read the Standings

• Presence rate: share of qualified observations where the brand is mentioned at all.
• Valid recommendation coverage: share of qualified observations where the brand appears in a valid recommendation shortlist.
• Top-three rate: share of qualified observations where the brand appears in the top three recommended positions.
• Rank-one rate: share of qualified observations where the brand is the single top recommendation.
• Net sentiment: share of positive mentions minus negative mentions among all mentions.

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

Recommendation Coverage Movement

Largest Decline: Square

Square saw the largest coverage decline, falling from 73.0% in July 2026 to 55.2% in August 2026, a drop of 17.8 percentage points. Its presence rate fell from 98.9% to 77.2%, its top-three rate declined from 65.6% to 52.4%, and its rank-one rate dropped from 45.4% to 37.3%. Despite the decline, Square remains the category leader.

Other Significant Declines

Eight of the ten tracked brands recorded declines beyond normal month-to-month variation in August 2026. Clover (Fiserv, Inc.) declined by 15.7 percentage points, Toast by 16.2 points, and Lightspeed by 15.1 points. Smaller but still significant declines were recorded by TouchBistro (down 9.1 points), Shopify POS (down 8.1 points), SpotOn (down 4.2 points), and Revel Systems (down 3.1 points). Each of these brands also saw its presence rate fall, with declines in every case.

Stable Brands

Epos Now was the only brand to increase, moving from 5.7% in July 2026 to 6.1% in August 2026, within normal month-to-month variation. NCR Aloha declined from 1.9% to 0.9%, also within normal variation. Both remain at low absolute levels of recommendation coverage, with Epos Now present in 69 observations and NCR Aloha in 29 in August 2026.

Category Leader: Square

Square maintained the top valid recommendation coverage position in August 2026 at 55.2%, ahead of Lightspeed at 50.5% and Toast at 48.4%. Square also holds the highest top-three rate at 52.4% and the highest rank-one rate at 37.3% in August 2026.

Recommendation Placement Snapshot

Coverage alone does not show how prominently a brand is recommended. The top-three and rank-one rates below show how often leading brands appear in the most visible positions.

Square converted its coverage into top placement in August 2026, appearing first in 37.3% of qualified observations versus 13.4% for Toast. Lightspeed, despite close coverage to Toast, rarely appeared in the first position, showing how similar coverage levels can hide very different first-position rates.

Buyer-Intent Distribution

All qualified observations in both months fell into the Brand Recommendation class of buyer-intent discovery.

The current public series measures brand-recommendation discovery only and does not yet contain qualified observations in the Pricing & Value or Multi-Brand Comparison classes.

Historical Measurement Record

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

The July 2026 measurement is the baseline for this series.

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 sales attributable to AI recommendations.
• Every possible AI response across all model versions and personalizations.
• Organic-search ranking positions outside AI-generated answers.
• Social media mention volume or sentiment.
• Private or sponsored channels such as paid placements.
• Causality from a metric movement alone; the benchmark records change, not why it occurred.

About This Benchmark

The LLM Authority Index AI Market Discovery Index tracks how often and how prominently brands are recommended by major AI and search surfaces across a vertical. Each month, a consistent set of prompt-surface observations is collected across six canonical AI families, then qualified into a public benchmark that measures presence, recommendation coverage, placement, and sentiment for each tracked brand.

Research links:

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

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