Streaming platforms · September 2026 Edition
Redpanda vs Apache Kafka
Four of twelve models named Redpanda first on the direct prompt; zero named Apache Kafka. Redpanda was named by eleven of the twelve models and Apache Kafka by twelve and Redpanda carries 57 labels and Apache Kafka 51, so the shares are not directly comparable.
Named in one category this edition.
Named in two categories this edition.
First-choice share17%17%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate9%29%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#3A position in a field of 11; printed, not drawn.
Labels5751A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Redpanda reading right to left. Rank and label count are printed, not drawn.Confluent Cloud was named alongside these two in nine of the twelve direct answers. Confluent Cloud vs Redpanda · Confluent Cloud vs Apache Kafka
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the streaming platforms page.
By framing
How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
RedpandaFirst choices, of twelve modelsApache Kafka
Direct404 against Apache Kafka
Paraphrase00
Comparative010
Budget-constrained481 against Apache Kafka
Scale-constrained111 against Redpanda · 1 against Apache Kafka
Negative124 against Redpanda · 9 against Apache Kafka
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.
The direct prompt
The plain question, one answer per model, grouped by where Redpanda and Apache Kafka stood in it.
Redpanda first, Apache Kafka not the choice
4 of 12 modelsApache Kafka was named in the answer but not as the choice, or not at all.Gemini 3.5 FlashGoldcast, Redpanda alternatives: Aiven for Apache Kafka, Demio, Livestorm, Sequel.io, WarpStream
DeepSeek V4 FlashRedpanda alternatives: Amazon MSK, Confluent Cloud, Dacast, GoTo Webinar
Kimi K2Confluent Cloud, Redpanda alternatives: Aiven for Apache Kafka
MiniMax M2.5Confluent Cloud, Redpanda alternatives: Aiven for Apache Kafka, Amazon MSK, Bizzabo, Dacast
Neither was the first choice, one was named
7 of 12 modelsThe answer put something else first and named one of the two as an alternative.GPT-5.4 miniConfluent Cloud alternatives: Amazon MSK, Redpanda
Perplexity SonarGoldcast alternatives: Aiven for Apache Kafka, Bizzabo, Confluent Cloud, Redpanda
Grok 4.1 FastConfluent Cloud alternatives: Aiven for Apache Kafka, Amazon MSK, Redpanda
Mistral SmallDacast alternatives: Aiven for Apache Kafka, Bizzabo, Redpanda
Llama 4 MaverickDacast alternatives: Aiven for Apache Kafka, Amazon MSK, Apache Kafka, Confluent Cloud, Redpanda, Virtual PRO
Qwen 3.7 FlashAmazon Kinesis Data Streams, Azure Event Hubs alternatives: Aiven for Apache Kafka, Confluent Cloud, Google Cloud Pub/Sub, Redpanda
GLM 4.7 FlashXConfluent Cloud alternatives: Aiven for Apache Kafka, Amazon Kinesis Data Streams, Apache Pulsar, NATS JetStream, Redpanda
Neither was named
1 of 12 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5Goldcast alternatives: Bizzabo, Hubilo
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Redpanda leads by twenty-two points.
Redpanda30%#1 of 11Apache Kafka7%#4 of 11Mid-marketThe figures above
Level: the same share of first choices.
Redpanda17%#2 of 11Apache Kafka17%#3 of 11Enterprise
The order flips: Apache Kafka leads at enterprise.
Apache Kafka14%#2 of 9Redpanda10%#3 of 9What the models said about Redpanda
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“it is not Apache Kafka internally, so compatibility and operational behavior should be tested against real workloads before committing” Perplexity Sonar · negative prompt · soft negative
“Redpanda: good Kafka compatibility, but it is not a perfect drop-in replacement. Some Kafka features are unsupported” GPT-5.4 mini · negative prompt · soft negative
“it may have a newer ecosystem compared to Confluent and AWS-native services” Llama 4 Maverick · negative prompt · soft negative
“"I have zero DevOps resources and want to pay pennies to start." | Redpanda Serverless | True serverless, scales to zero” Gemini 3.5 Flash · budget prompt · first choice
“Redpanda (a modern, C++ based, Kafka-compatible binary that is much easier to run self-hosted)” Gemini 3.5 Flash · negative prompt · first choice
“Redpanda or Confluent are typically the best starting points for mid-market B2B companies.” MiniMax M2.5 · direct prompt · first choice
What the models said about Apache Kafka
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Deprecated, being removed ... Kafka 4.0 (2025) removed ZooKeeper entirely.” Kimi K2 · negative prompt · hard negative
“While it's a popular and widely-used platform, it may not be suitable for small static websites or low-traffic applications.” Llama 4 Maverick · negative prompt · soft negative
“misconfigurations around idempotence, in-flight requests, and acknowledgments can cause ordering or delivery issues” GPT-5.4 mini · negative prompt · soft negative
“Kafka is the dominant default — it's been in production at massive scale for over a decade, has the largest ecosystem of connectors and tools” DeepSeek V4 Flash · comparative prompt · first choice
“Apache Kafka - Open-source and free... highly scalable and widely used, making it ideal if you have technical expertise in-house.” Claude Haiku 4.5 · budget prompt · first choice
“Choose Confluent / Kafka if you are an enterprise building a broad, mission-critical real-time data architecture” Gemini 3.5 Flash · comparative prompt · first choice
Comparisons are drawn for the top three products in each category. The output is the models' output; nothing here is a recommendation by the index.