One of fourteen models named Apache Kafka first on the direct prompt; one named Aiven for Apache Kafka. Apache Kafka was named by fourteen of the fourteen models and Aiven for Apache Kafka by twelve and Apache Kafka carries 51 labels and Aiven for Apache Kafka 23, so the shares are not directly comparable.
Named in three categories this edition.
Named in one category this edition.
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen 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.
Across every category in the November 2026 Edition, Apache Kafka and Aiven for Apache Kafka were named in the same answer twenty-three times, of the 163 answers naming Apache Kafka and the 57 naming Aiven for Apache Kafka. In those answers Aiven for Apache Kafka took the first choice zero times and Apache Kafka four.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | ||||||
| Gemini 3.5 Flash | ||||||
| Perplexity Sonar | ||||||
| Grok 4.20 | ||||||
| Mistral Small | ||||||
| DeepSeek V4 Flash | ||||||
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | ||||||
| Kimi K2 | ||||||
| GLM 4.7 FlashX | ||||||
| MiniMax M2.5 | ||||||
| GPT-6 Luna | ||||||
| Muse Glimmer 30B |
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.
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Avoid Self-Hosting Kafka: The total cost of ownership (TCO) of engineer hours spent troubleshooting Kafka brokers... far exceeds the cost of a managed vendor.” Gemini 3.5 Flash · direct prompt · hard negative
“Why cautious/avoid: Extremely high operational complexity—requires deep expertise in clustering, KRaft mode, tuning, monitoring, scaling, and disaster recovery.” Grok 4.20 · negative prompt · soft negative
“Caution Due to Operational Complexity: Apache Kafka (and Confluent)... You shouldn't necessarily "avoid" it, but you must be extremely cautious.” Qwen 3.7 Flash · negative prompt · soft negative
“Apache Kafka (self-managed or open-source) is generally the best event streaming platform for a company with a limited budget.” Grok 4.20 · budget prompt · first choice
“The open-source standard for durable, replayable event streams... You want control, portability, and a widely used foundation” GPT-6 Luna · comparative prompt · first choice
“Apache Kafka (The Industry Standard) ... Choose Kafka if you need the most mature ecosystem, highest throughput ceiling” Kimi K2 · comparative prompt · first choice
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“High operational overhead—not ideal for mid-market without dedicated SREs” Grok 4.20 · direct prompt · soft negative
“Aiven or Redpanda – These are often cited as the best choices for small to mid-market companies” Mistral Small · direct prompt · first choice
“I'd recommend starting with Aiven for its balance of features and cost-effectiveness” GLM 4.7 FlashX · paraphrase prompt · first choice
“Choose Aiven or Instaclustr when portability, upstream Apache Kafka compatibility, hybrid deployment, or running in your own cloud account matters” Perplexity Sonar · paraphrase prompt · alternative
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.