Perplexity cites startup-sized brands at a near-zero rate, making it the toughest AI search engine for young companies: it went a full three consecutive weeks at exactly 0.0% in May 2026 and still sits around 5% in June. Claude is the most startup-friendly engine on average. Across the full quarter it cited startups about 24% of the time, the highest of any engine. But Claude's lead is shrinking. It peaked near 44% in late spring 2026, the highest startup citation rate of any engine in any single week in our study's history, then cooled to roughly 18% by June. That pushed the June ranking close together: Gemini at about 23%, ChatGPT at 22%, Grok at 19%, Claude at 18%, and Perplexity near 5%. If you are a startup trying to get recommended by AI search engines, the engine you target still matters as much as the content you publish. Claude remains structurally your best shot on average. Perplexity remains structurally hostile. And the order keeps moving, which is why per-engine visibility is worth watching continuously.
This finding comes from our AEO Research study covering 20 queries across 5 categories and 25 B2B SaaS brands, tracked weekly from March through June 2026. The startup accessibility gap is not new, and while Claude's lead has narrowed sharply since its spring peak, the structural divide between Perplexity and Claude has held. This article breaks down the data, explains why the gap exists, and maps out what startups can actually do about it.
The Bottom Line
- Perplexity cited zero startup brands across three consecutive weeks in May and stays near zero (about 5%) in June. Its citation list is overwhelmingly enterprise and midmarket brands: HubSpot, Salesforce, Pipedrive, Asana, Mailchimp, Amplitude, Vercel, Netlify.
- Claude peaked at 44.4% startup citations in a single late-May week, a study high, then fell to roughly 18% in June. It still leads on a full-quarter average of about 24%, and it remains the only engine that regularly places startups like Close (CRM) and PostHog (Analytics) in #1 positions. Claude's startup citations have been sliding, so its lead is no longer a runaway.
- When Claude went offline for one week, startup citations collapsed from 15% to 9% across all engines, the lowest in the study's history. When Claude returned, startup share rebounded to 18.6%.
The Engine Accessibility Score: How Each Engine Treats Startups
Engine Accessibility Score measures the percentage of an engine's total citations that go to startup-sized brands. The spread was at its widest in late May 2026, when Claude spiked. As of June 2026 the picture has shifted: Claude has fallen back from its peak and the engines now sit much closer together, though Claude still leads on a full-quarter average.
| Engine | Startup Citation Rate (June 2026) | Q2 Average | Trend |
|---|---|---|---|
| Claude | ~18% | ~24% (highest) | Fell from a 44.4% late-May peak |
| Gemini | ~23% | ~18% | Rose past Claude in June |
| ChatGPT | ~22% | ~20% | Stable, now near the top |
| Grok | ~19% | ~21% | Stable |
| Perplexity | ~5% | ~6% | Near zero, still the toughest engine |
Claude's late-May peak of 44.4% meant nearly half of its citations went to startup brands, the highest startup rate any engine reached in a single week in our study. That was a real peak, not a measurement error, and not a permanent state: by June, Claude's rate had cooled to about 18%, slipping just behind Gemini, ChatGPT, and Grok for the month, even as it held the highest full-quarter average at about 24%. At its peak Claude favored startups other engines ignored. PostHog earned 3 Claude citations across analytics queries. Close earned its first citation in five weeks, exclusively from Claude. Claude also placed PostHog as the #1 brand for "analytics tools for startups 2026," a position no other engine gave to a startup brand for that query.
Perplexity's 0.0% is equally striking. Across approximately 60 engine-query combinations over three weeks, Perplexity cited no startup brand. Not once. Its citations went exclusively to enterprise brands (HubSpot, Salesforce, Asana, Mailchimp) and midmarket brands (Amplitude, Vercel, Netlify, Pipedrive). Perplexity is not accidentally overlooking startups. It is structurally selecting against them.
What to do: If you are a startup, track your visibility on Claude and Grok separately from the other engines. These two engines account for the vast majority of startup citations. On Perplexity, the current data suggests that direct startup visibility is nearly impossible without significant third-party authority. Focus Perplexity effort on earning editorial mentions rather than expecting direct brand citations.
The Claude Effect: What Happens When the Startup-Friendly Engine Goes Offline
Our research includes a natural experiment that proves Claude's structural importance for startups. In one week, Claude went offline due to an infrastructure failure. The result was immediate and dramatic.
| Metric | Claude Active (Cycle Before) | Claude Offline | Claude Returns (May 2026) |
|---|---|---|---|
| Startup citations (all engines) | 7 | 5 | 13 |
| Startup share of total citations | 15% | 9% | 18.6% |
| PostHog citations | 5 | 3 | 7 |
| Engines citing startups | 3 of 4 | 2 of 4 | 4 of 5 |
When Claude disappeared, startup citations dropped to their study low of 9%. PostHog, the most cited startup in the study, fell from 5 to 3 citations. Close earned zero citations (it only gets cited by Claude). The startup visibility floor collapsed because the one engine most willing to cite startups was absent.
When Claude returned the following week, startup citations immediately rebounded to 13 (18.6% of all citations), and PostHog surged from 3 to 7 citations. Claude alone accounted for 4 of the 13 startup citations. Without Claude, the remaining four engines produced just 9 startup citations across 80 engine-query combinations. That rebound is also roughly where Claude has settled in June, around 18%, after its late-May spike faded.
PostHog's trajectory now tracks Claude's presence more closely than any other variable. Remove Claude from each week's count and PostHog normalizes to roughly 1.0 citations per engine. With Claude, it rises to 1.75+. PostHog is the study's most engine-dependent brand.
What to do: Startups should still treat Claude as their primary AI visibility channel on average, while recognizing that its lead has narrowed and engine behavior keeps shifting month to month. Build the content Claude's retrieval system favors: evidence-based technical documentation, comparison pages with honest assessments, and structured product pages. Claude uses Brave Search for retrieval and appears to weight technical accuracy and specificity over domain authority, which creates an opening that Perplexity's authority-focused system closes. Because the per-engine ranking moves, track Claude alongside the others rather than assuming its spring lead holds.
Why Perplexity Excludes Startups
Perplexity's zero startup citation rate is not random. It reflects how Perplexity's retrieval and ranking system works. Perplexity favors high-authority editorial sources, established review platforms, and publications with long track records. These sources naturally cover incumbent brands that have accumulated years of editorial mentions, G2 reviews, and industry coverage. Startups without that accumulated third-party presence do not appear in the source pool Perplexity draws from.
The data shows this clearly. Perplexity's 8 cited brands in the most recent week were all enterprise or midmarket: HubSpot, Salesforce, Pipedrive, Asana, Mailchimp, Amplitude, Vercel, Netlify. Every one of these brands has hundreds of G2 reviews, extensive editorial coverage, and years of industry presence. Close (a startup CRM) was mentioned by 4 of 5 engines but cited by only Claude. Perplexity mentioned Close zero times.
This pattern has held across three consecutive weeks. Perplexity's startup citation rate went from 8% in April to 0% in three straight weeks in May. It is not a temporary dip. It is a structural characteristic of how Perplexity evaluates source authority.
What to do: Do not invest startup resources trying to earn direct Perplexity citations in the short term. Instead, invest in the upstream sources Perplexity trusts: earn G2 reviews (aim for 50+), get included in editorial roundups on publications like TechCrunch, TechRadar, or industry-specific sites, and build a Capterra profile with current data. Over time, these investments build the authority profile Perplexity requires. In the meantime, focus your AI visibility effort on Claude and Grok, where startups have a structural advantage.
Grok: The Second-Best Engine for Startups
Grok cited startups at about 21% across the quarter, peaking at 25% during the late-May week, which keeps it consistently among the most startup-friendly engines alongside Claude. Grok's startup citations went to PostHog, Render, Fly.io, and Beehiiv, all of which were cited exclusively by Grok or by Grok and Claude together.
Grok's startup accessibility comes from its source diversity. Grok pulls heavily from Reddit (50 URLs in that peak week) and YouTube (52 URLs), platforms where startup brands often have more organic presence than they do on established editorial sites. A PostHog discussion in r/analytics or a Fly.io recommendation in r/selfhosted directly feeds Grok's recommendation system. These community sources are where startups compete on product quality and user enthusiasm rather than on accumulated editorial authority.
Three brands in the study (Beehiiv, Render, Fly.io) were cited exclusively by Grok in that peak week. Without Grok in the tracking set, these three brands would have zero AI citations. For startup brands in developer tools, analytics, or content creation categories, Grok is their entire AI citation presence.
What to do: Build Reddit presence in the subreddits where your category is discussed. Grok's Reddit citations come from authentic discussion threads, not promotional posts. Identify the 5 to 10 subreddits where your buyers ask recommendation questions, participate genuinely, and build post history. Reddit participation is free but time-intensive. The payoff is concentrated: strong Reddit presence directly drives Grok citations, and Grok is one of only two engines that gives startups meaningful citation rates.
ChatGPT and Gemini: The Middle Ground
On a full-quarter average, ChatGPT cited startups at about 20% and Gemini at about 18%, placing both in the middle: well above Perplexity's near-zero and below Claude's quarter-leading 24%. In June, though, both climbed as Claude fell, with Gemini around 23% and ChatGPT around 22%.
ChatGPT's startup accessibility has been among the most stable of any engine, holding near 20% across the quarter. ChatGPT is the engine where brand website content matters most (22.9% brand-site citation rate), which creates an opening for startups with well-structured product pages. At the late-May peak, ChatGPT cited PostHog, Heap, and ClickUp (its first citation ever, after weeks of being mentioned but never cited).
Gemini has been the most volatile engine on this metric. Its startup rate swung from 19% in April down to 9.1% in May, then back up to roughly 23% in June, when it briefly led all engines. That swing is a reminder that no single month defines an engine, and that a window which looks narrow one month can reopen the next.
What to do: For ChatGPT, invest in your website. Structure pricing pages, feature comparisons, and product documentation for answer-first extraction. ChatGPT reads brand websites at a higher rate than any other engine, and it gives startups a steady citation rate near 20%. For Gemini, focus on blog content and editorial mentions, and watch the metric month to month, because its startup rate moves more than any other engine's.
The Startup Visibility Formula: Which Engines to Prioritize
Based on a full quarter of weekly data, here is the priority order for startups seeking AI search visibility. The rates below are full-quarter averages, which smooth out the month-to-month swings (Claude's June rate, for example, fell to about 18%).
| Priority | Engine | Startup Rate (Q2 avg) | Why | Key Action |
|---|---|---|---|---|
| 1 | Claude | ~24% | Highest on a quarter average, though its June rate slipped behind Gemini and ChatGPT. Only engine to cite niche startups like Close. | Technical docs, evidence-based content, Brave Search optimization |
| 2 | Grok | ~21% | Consistently strong. Reddit and YouTube sourcing favors startup community presence. | Reddit participation, YouTube coverage |
| 3 | ChatGPT | ~20% | Largest user base. Reads brand websites. Stable startup rate. | Website optimization, answer-first pages |
| 4 | Gemini | ~18% | Most volatile, but rose to the top in June. Blog and editorial dependent. | Blog content, editorial roundup placement |
| 5 | Perplexity | ~6% | Near zero, lowest by far, including three straight weeks at 0%. Long-term authority play only. | G2 reviews, editorial coverage (long-term) |
The critical insight is that Claude leads on average but no single engine holds a runaway lead, and the order keeps moving month to month. When the startup-friendly engines are all active, startups receive 18-24% of all citations. When one goes offline, the floor drops to 9-15%. For startups, the question is not whether to invest in AI search optimization. It is which engines to invest in first, and how to keep watching as their behavior shifts.
Loudmink tracks startup visibility per engine across all five AI search engines, showing which engines cite you and which are blind spots. Run a free scan to see your per-engine startup visibility, with plans from $99/mo.
What Startups Should Do About Perplexity's Zero
Perplexity's 0% startup rate does not mean you should ignore it entirely. It means you should invest in Perplexity indirectly rather than directly. The sources Perplexity trusts (editorial roundups, G2 profiles, authoritative review sites) also benefit your visibility on the other four engines. Building a strong G2 profile helps with Perplexity, Claude, Gemini, and ChatGPT simultaneously.
The timeline matters. Perplexity's authority threshold appears to require a critical mass of third-party coverage that most startups take 12 to 18 months to build. In the meantime, focus direct effort on Claude and Grok, where the data shows startups can earn citations with smaller third-party footprints. Use your ChatGPT and Grok wins as proof points when pitching to editorial publications, which in turn builds the authority profile Perplexity eventually recognizes.
The brands that have crossed Perplexity's threshold in our data (Amplitude, Vercel, Netlify) all share common traits: 200+ G2 reviews, coverage in multiple editorial roundups, presence on comparison sites, and years of accumulated mentions. These are not overnight achievements. They are the compound result of sustained third-party presence building.
What to do: Set Perplexity as a 12-month goal, not a 90-day target. Invest in the upstream sources now (G2 reviews, editorial pitches, comparison site placements) while focusing your immediate AI visibility effort on Claude and Grok. Track your Perplexity mentions monthly through AI search monitoring. The transition from "mentioned" to "cited" on Perplexity will require crossing an authority threshold that your ongoing third-party investments are building toward.
Frequently Asked Questions
Why does Perplexity never cite startup brands?
Perplexity's retrieval system prioritizes high-authority editorial sources, established review platforms, and publications with long track records. These sources naturally cover incumbent brands with years of accumulated coverage. Startups without extensive G2 reviews, editorial mentions, and industry presence do not appear in the source pool Perplexity draws from. This produced zero startup citations across three consecutive weeks in May 2026, and Perplexity has stayed near zero (about 5%) since, the lowest of any engine.
Which AI search engine should startups prioritize?
Claude on average, but the order shifts month to month. Across the full quarter Claude cited startups at about 24%, the highest of any engine, though that lead has narrowed. Claude peaked near 44% in late May, then fell to about 18% in June, slipping behind Gemini (~23%), ChatGPT (~22%), and Grok (~19%) for the month. Over the quarter, Claude and Grok (~21%) remain the most consistent startup-friendly engines, with ChatGPT (~20%) close behind. Perplexity stays near zero. Because the ranking keeps moving, track all five AI search engines rather than committing to one.
Can a startup ever get cited by Perplexity?
Yes, but it requires building the authority profile Perplexity trusts. Brands in our study that earn Perplexity citations (Amplitude, Vercel, Netlify) have 200+ G2 reviews, coverage in multiple editorial roundups, and years of accumulated industry presence. For most startups, this is a 12 to 18 month investment. Focus on Claude and Grok for near-term AI visibility while building the third-party coverage Perplexity requires.
How does Claude decide to cite startups?
Claude uses Brave Search for retrieval and appears to weight technical accuracy, specificity, and evidence-based content over domain authority. This creates structural openings for startups that publish detailed technical documentation, honest comparison content, and product pages with specific facts. Claude placed PostHog as the #1 analytics tool for startups and was the only engine to cite Close CRM, suggesting it evaluates content quality independently of brand size.
What happened to startup visibility when Claude went offline?
Startup citations collapsed from 15% to 9% of all citations, the lowest in our study's history. PostHog dropped from 5 to 3 citations. Close dropped to zero. When Claude returned, startup share rebounded to 18.6% and PostHog surged to 7 citations. The natural experiment proved that Claude is structurally essential for startup visibility in AI search.
Updated for June 2026: Claude's startup citation rate has fallen from its ~44% spring peak to about 18%, though it still leads on a full-quarter average (~24%). Perplexity remains near zero.