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Index › Products › Apache Pulsar · October 2026 Edition
2 categories · Ranked

Apache Pulsar

83Judge labels
1First choices
26Negative labels
14 / 14Models named it
2Categories
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.8, every buyer segment counted.
Best standing
2% in Streaming for mid-market buyers
Rank 8 of 98 in the mid-market standingaccepted challenger
0 of 14 models made it the first choice on the direct prompt; 21% of its 33 labels there were negative.
What the models named instead of Apache Pulsar →
By buyer segmentRead the same way at every buyer size.
In streaming · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Apache Pulsar for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrantSince September 2026
Streaming platformsData platform2%8 of 9821%33accepted challenger=heldSince September 2026: 2% → 2%, ±0 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
Telemetry pipelinesIT operations and endpoint0%41 of 1240%3under 10 labels · led by OpenTelemetry Collector at 37%

Movement

Since September 2026, Apache Pulsar held within the floor in all two categories: no change cleared 11 points.

Best category · Streaming · by segment

Small business▼−4Since September 2026: 4% → 0%, −4 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
0%from 4% in September 2026
Inside the floor by 7 pointsRank 9 → 84 of 84
Mid-market=heldSince September 2026: 2% → 2%, ±0 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
2%from 2% in September 2026
Inside the floor by 11 pointsRank 11 → 8 of 94
Enterprise▼−2Since September 2026: 2% → 0%, −2 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
0%from 2% in September 2026
Inside the floor by 9 pointsRank 7 → 13 of 64

All categories · Mid-market

CategorySeptember 2026NowChangeReadingRank
Streaming2%2%=heldSince September 2026: 2% → 2%, ±0 points. Inside the 11-point floor: within noise. Read over the models both editions asked.Within noiseRank 11 → 8 of 98
Telemetry pipelines0%0%newNew since September 2026: not ranked then, 0% now.New this editionRank 41 of 124, unchanged

Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.

The floor is 11 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions

By model

How each model treated Apache Pulsar across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
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ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500101
GPT-5.4 mini01203
Gemini 3.5 Flash01012
Perplexity Sonar00202
Grok 4.2001315
Mistral Small01304
DeepSeek V4 Flash01113
Llama 4 Maverick00112
Qwen 3.7 Flash01001
Kimi K201023
GLM 4.7 FlashX11013
MiniMax M2.502103
GPT-6 Luna00101
Muse Glimmer 30B03003

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct6 labelsNone
Paraphrase0 labelsNone
Comparative29 labelsNone
Budget-constrained6 labels1
Scale-constrained14 labelsNone
Negative28 labelsNone
First choiceAlternativeMentionNegative83 labels in all, every segment counted; 1 of the 1 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“## Top Recommendation: Apache Pulsar (Self-Hosted)” GLM 4.7 FlashX · Streaming · budget prompt · first choice
“A cloud-native, multi-tenant event streaming platform designed for high scalability, geo-replication, and flexible messaging patterns.” Muse Glimmer 30B · Streaming · comparative prompt · alternative
“Geo-replication, tiered storage, multi-tenancy, separate compute/storage | Higher resource use (3 layers), smaller ecosystem” Grok 4.20 · Streaming · comparative prompt · alternative
“Choose Apache Pulsar if you need multi-tenancy, geo-replication, or the flexibility of both queue and streaming semantics” DeepSeek V4 Flash · Streaming · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Avoid: ... self‑hosted Pulsar (unless you’re a large enterprise)” GLM 4.7 FlashX · Streaming · negative prompt · hard negative
“Pulsar introduces unnecessary operational overhead” Gemini 3.5 Flash · Streaming · negative prompt · hard negative
“Apache Pulsar is not recommended for small-scale applications or those without strict multi-tenancy needs.” Llama 4 Maverick · Streaming · negative prompt · soft negative
“Less mature ecosystem/connectors than Kafka. Struggles with large messages/high throughput in tests.” Grok 4.20 · Streaming · negative prompt · soft negative

Named alongside

The products named in the same answers as Apache Pulsar, over the 83 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Apache Pulsar was named but was not.
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ProductSame answerTook the first choice insteadHead to head
Amazon Kinesis Data Streams51 of 832Not among the top eight
Azure Event Hubs43 of 830Not among the top eight
RabbitMQ23 of 832Not among the top eight
NATS JetStream12 of 832Not among the top eight
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Apache Pulsar. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 72 of the 83 answers that named Apache Pulsar and are not a share of its labels.

Domains cited

devopsschool.com43
dacast.com28
redpanda.com28
automq.com24
airbyte.com23
guideflow.com23
apidog.com22
confluent.io22
textql.com22
linkedin.com19

254 of the 254 domain citations in answers naming Apache Pulsar came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Search and answers

apache.org is not in Google's top ten for any of the category's searches. In the answers, Apache Pulsar takes 2% of first choices and Confluent Cloud takes 39%.
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In search

Google, US estimates
Position for “event streaming platform”
–
not in the top ten
Position for “event streaming platforms”
–
not in the top ten
Searches for its name, Google
880 a month (“apache pulsar”)
AI search demand for its name, est.
26 a month
Organic visits to its site
about 1,144,025 a month
Searches its site ranks for
44,247 · 10,306 in the top three
Sites linking to it
174,267
Paid Google search
No ads found in the estimate; that does not mean it runs none
Ads on GoogleDetailLess
1 ads · 1 text · 0 shown in the last 30 days

First shown March 2025, as GridGain Systems, verified. 1 more by other advertisers linking to it.

On Google's pages: 1

In answers

This edition
Share of first choices
2%
rank 8 of 98 in streaming
Segment leader
39%
Confluent Cloud
First choices
1 across its categories
Named in
83 answers
Its own site cited
in 72 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

What it publishes

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Addresses on apache.org
2,858
subdomains included
Content
1,384
counted in the table below
Documentation
375
Product · Integration
16 · 0
KindPagesLast 90 days2025-10 to 2026-09LatestCategories named
News or press1,081122026-09-03
Blog22812026-07-01
Template or tool38undated
Report or ebook14undated
Conference or event1002026-06-09
Glossary or explainer9undated
Case study2undated
Webinar or virtual event2undated
How it is countedHide how it is counted

Every page apache.org exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.

Names read as Apache Pulsar

What the judge wrote, as written, with how often. The vendor table decides that these count as Apache Pulsar; a claim can dispute any of them.
Pulsar 9Apache Pulsar (self‑hosted) 1

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Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Apache Pulsar's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Apache Pulsar, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Apache Pulsar by email, built from the raw record of the edition. It shows:

  • where Apache Pulsar is named, by buyer and by framing, and which cells hold its first choices;
  • the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
  • its vocabulary against the segment leader's, and the pages the models cited;
  • who was chosen in the answers that did not name Apache Pulsar, and every reason the record gives;
  • a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
  • one page of published figures cleared to show a buyer.
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A verification link goes to your work email; an address at apache.org is approved on the spot, any other is reviewed by hand. Your email is never published. Claiming gives no say over labels, shares, verdicts or which quotes appear.