IT AI Index
Index Data platform September 2026 Edition

Streaming platforms

Asked as “event streaming platform”, and as “managed Kafka or streaming service”, on behalf of a mid-market B2B company. 53 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.
Standing
Contested
32% of first choices, contested.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

01The standing

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. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrant
01Confluent Cloud32%16%50endorsed leader
02Redpanda17%9%57accepted challenger
03Apache Kafka17%29%51criticized challenger
04Amazon MSK6%18%33accepted challenger
05Aiven for Apache Kafka4%0%27accepted challenger
06WarpStream4%27%11criticized challenger
07Amazon Kinesis Data Streams2%25%36criticized challenger
08Azure Event Hubs2%19%27accepted challenger
09Apache Pulsar2%27%37criticized challenger
Show the two products at 0%, ordered by negative rate
11RabbitMQ0%42%12criticized challenger
10Google Cloud Pub/Sub0%19%27accepted challenger
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
01
02
03
04
05
06
07
08
09
10
11
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative50%
Key
01Confluent Cloud32%
02Redpanda17%
03Apache Kafka17%
04Amazon MSK6%
05Aiven for Apache Kafka4%
06WarpStream4%
07Amazon Kinesis Data Streams2%
08Azure Event Hubs2%
09Apache Pulsar2%
10Google Cloud Pub/Sub0%
11RabbitMQ0%

02What they warned about

Three of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, Gemini 3.5 Flash, Perplexity Sonar, Mistral Small, DeepSeek V4 Flash, Llama 4 Maverick, Qwen 3.7 Flash, Kimi K2 and MiniMax M2.5 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Apache Kafka
29%
15 of 51 labels negative · 10 of 12 models · 1 hard negative
“Deprecated, being removed ... Kafka 4.0 (2025) removed ZooKeeper entirely.” Kimi K2, negative prompt
Amazon Kinesis Data Streams
25%
9 of 36 labels negative · 7 of 12 models · 1 hard negative
“Don't force Kinesis or low-tier managed queues.” DeepSeek V4 Flash, negative prompt
Apache Pulsar
27%
10 of 37 labels negative · 7 of 12 models · 1 hard negative
“Unless you are a massive enterprise with strict multi-tenancy needs, steer clear of self-hosting Pulsar.” Gemini 3.5 Flash, negative prompt
Confluent Cloud
16%
8 of 50 labels negative · 7 of 12 models
“**Vendor self-managed** (Confluent Platform) adds enterprise features but licenses run roughly **$50K–$500K+/year** plus per-environment fees.” DeepSeek V4 Flash, scale prompt

03What they cite

Citations exist only for the models that return a source list: twelve of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

63 of 72 answers in this category came back with a source list, from 12 of 12 models: citations where the model returns them, or the search results it consulted. 6 of those lists are Google grounding redirects that name no site and are left out of the counts. 770 links across 230 sites, every framing counted. Ranked by the number of answers carrying the site or page.

vendor site · Guideflow24 answers · 25 citations · 10 models
21 answers · 45 citations · 6 models
vendor site · AutoMQ21 answers · 33 citations · 10 models
21 answers · 23 citations · 9 models
18 answers · 20 citations · 8 models
vendor site · Redpanda16 answers · 23 citations · 6 models
13 answers · 15 citations · 7 models
vendor site · Instaclustr11 answers · 29 citations · 9 models
11 answers · 11 citations · 7 models
vendor site · Dacast10 answers · 15 citations · 5 models
10 answers · 11 citations · 8 models
10 answers · 11 citations · 8 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

04How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ModelDirect“What is the best event streaming platform for a mid-market B2B company?”Paraphrase“Which managed Kafka or streaming service would you recommend to a mid-sized B2B company?”Comparative“What are the top event streaming platforms and how do they differ?”Budget-constrained“What is the best event streaming platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an event streaming platform. What should we look at?”Negative“Which event streaming platforms should I avoid or be cautious about?”
Claude Haiku 4.5Goldcast
Two alternativesBizzabo, Hubilo
Aiven for Apache KafkaChanged
One alternativeAmazon MSK
against: Confluent Cloud
YouTube
Six alternativesBrightcove, Kaltura, Kick, Twitch, VIDIZMO EnterpriseTube, Vimeo
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Azure Event Hubs, Google Cloud Pub/Sub, RabbitMQ, Redis Streams
no first choicenothing named
GPT-5.4 miniConfluent Cloud
Two alternativesAmazon MSK, Redpanda
Confluent CloudHeld
Two alternativesAmazon MSK, Google Cloud Pub/Sub
Apache Kafka
Three alternativesAmazon Kinesis Data Streams, Apache Pulsar, Redpanda
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Azure Event Hubs, Google Cloud Pub/Sub, RabbitMQ, Redpanda
against: Confluent Cloud
no first choiceagainst: Apache Kafka, Redpanda
Gemini 3.5 FlashGoldcast, Redpanda
Five alternativesAiven for Apache Kafka, Demio, Livestorm, Sequel.io, WarpStream
against: Amazon MSK, Confluent Cloud
Aiven for Apache KafkaChanged
Three alternativesConfluent Cloud, Redpanda, WarpStream
against: Amazon MSK
Apache Kafka, Confluent Cloud
Six alternativesAmazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda, WarpStream
Redpanda, WarpStream
Two alternativesAutoMQ, NATS JetStream
against: Amazon MSK, Apache Kafka
Confluent Cloud, Redpanda
One alternativeWarpStream
against: Amazon MSK, Apache Kafka
against: ActiveMQ, Amazon Kinesis Data Streams, Apache Kafka, Apache Pulsar, Apache Samza, Apache Storm, RabbitMQ, Redis Pub/Sub, Redis Streams
Perplexity SonarGoldcast
Four alternativesAiven for Apache Kafka, Bizzabo, Confluent Cloud, Redpanda
Confluent CloudChanged
Three alternativesAiven for Apache Kafka, Amazon MSK, Instaclustr for Apache Kafka
against: Raff Managed Kafka
Apache Kafka
Six alternativesAmazon Kinesis Data Streams, Apache Flink, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda
Apache Kafka
Three alternativesAmazon Kinesis Data Streams, Google Cloud Pub/Sub, Redpanda
no first choiceagainst: Apache Kafka, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, NATS JetStream, Redpanda, WarpStream
Grok 4.1 FastConfluent Cloud
Three alternativesAiven for Apache Kafka, Amazon MSK, Redpanda
against: Apache Kafka
Confluent CloudHeld
Three alternativesAiven for Apache Kafka, Amazon MSK, Redpanda
against: Upstash
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda
Apache Kafka, Redpandaagainst: Amazon Kinesis Data Streams, Amazon MSK, Confluent CloudConfluent Cloud
Two alternativesAmazon Kinesis Data Streams, Apache Kafka
against: Apache Pulsar, Redpanda
against: Amazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, RabbitMQ
Mistral SmallDacast
Three alternativesAiven for Apache Kafka, Bizzabo, Redpanda
DoubleCloud Managed Service for Apache Kafka, UpstashChanged
Two alternativesConfluent Cloud, Redpanda
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Apache Pulsar, Confluent Cloud, Google Cloud Pub/Sub, Redpanda
Apache Kafka, Redpanda
Two alternativesConfluent Cloud, OBS Studio
no first choiceagainst: Amazon Kinesis Data Streams, Apache Kafka
DeepSeek V4 FlashRedpanda
Four alternativesAmazon MSK, Confluent Cloud, Dacast, GoTo Webinar
against: Apache Kafka, Apache Pulsar
Amazon MSK, Confluent CloudChanged
Two alternativesAiven for Apache Kafka, Redpanda
against: Amazon Kinesis Data Streams
Apache Kafka
Seven alternativesAmazon Kinesis Data Streams, Amazon MSK, Apache Pulsar, Azure Event Hubs, Confluent Cloud, Google Cloud Pub/Sub, Redpanda
WarpStream
Six alternativesAiven for Apache Kafka, Apache Kafka, RabbitMQ, Redpanda, StreamYard, YouTube Live
against: Amazon MSK
Apache Kafka
Seven alternativesAmazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Confluent Cloud, Google Cloud Pub/Sub, Redpanda, WarpStream
against: Confluent Cloud
against: Amazon Kinesis Data Streams, Amazon SQS, Apache Kafka, Apache Pulsar, AutoMQ, Azure Event Hubs, Confluent Cloud, RabbitMQ, Redis Pub/Sub, Redpanda, WarpStream
Llama 4 MaverickDacast
Six alternativesAiven for Apache Kafka, Amazon MSK, Apache Kafka, Confluent Cloud, Redpanda, Virtual PRO
against: Apache Pulsar
Confluent CloudChanged
Four alternativesAiven for Apache Kafka, Amazon MSK, Instaclustr for Apache Kafka, WarpStream
no first choiceStreamShark
Two alternativesApache Kafka, Apache Pulsar
no first choiceagainst: Amazon Kinesis Data Streams, Apache Kafka, Apache Pulsar, AutoMQ, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda, WarpStream
Qwen 3.7 FlashAmazon Kinesis Data Streams, Azure Event Hubs
Four alternativesAiven for Apache Kafka, Confluent Cloud, Google Cloud Pub/Sub, Redpanda
against: Apache Kafka
Confluent CloudChanged
Two alternativesAmazon MSK, Redpanda
Apache Kafka
Five alternativesAmazon MSK, Azure Event Hubs, Confluent Cloud, Google Cloud Pub/Sub, Redpanda
Redpanda
Three alternativesApache Kafka, Google Cloud Pub/Sub, NATS
Amazon MSK, Confluent Cloudagainst: Amazon Kinesis Data Streams, Apache Kafka, Confluent Cloud, Google Cloud Pub/Sub, NATS JetStream, RabbitMQ
Kimi K2Confluent Cloud, Redpanda
One alternativeAiven for Apache Kafka
against: Apache Kafka
Amazon MSK, Confluent CloudChanged
One alternativeRedpanda
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda
Apache Kafka
Three alternativesOBS Studio, StreamYard, YouTube Live
no first choice
Two alternativesConfluent Cloud, Redpanda
against: Apache Kafka, Apache Pulsar, Apache Storm 2.x, Knative eventing-rabbitmq, NATS Streaming, RabbitMQ
GLM 4.7 FlashXConfluent Cloud
Five alternativesAiven for Apache Kafka, Amazon Kinesis Data Streams, Apache Pulsar, NATS JetStream, Redpanda
Confluent CloudHeld
Three alternativesAiven for Apache Kafka, Amazon MSK, Redpanda
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Apache Pulsar, NATS Streaming, RabbitMQ, Redpanda
Apache Kafka, Apache Pulsar
Four alternativesAutoMQ, EventLive, Eventzilla, Redpanda
against: Confluent Cloud, IBM Event Streams
no first choiceagainst: Amazon Kinesis Data Streams, Apache Kafka, Apache Pulsar, Azure Event Hubs, Facebook Live, Google Cloud Pub/Sub, Instagram Live, YouTube Live
MiniMax M2.5Confluent Cloud, Redpanda
Four alternativesAiven for Apache Kafka, Amazon MSK, Bizzabo, Dacast
Confluent CloudChanged
Three alternativesAiven for Apache Kafka, Amazon MSK, Instaclustr for Apache Kafka
Apache Kafka
Five alternativesAmazon Kinesis Data Streams, Apache Pulsar, Azure Event Hubs, Google Cloud Pub/Sub, Redpanda
Apache Kafka
Two alternativesAiven for Apache Kafka, Redpanda
no first choiceagainst: Amazon Ring, Disney+, Netflix, Roku, Tving, Twitch
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Seventy-two rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 10:36yes97 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 13:25yes35 s
Direct recommendationGemini 3.5 Flashgemini-3.5-flash2026-09-17 11:22yes1233 s
Direct recommendationPerplexity Sonarsonar2026-09-17 11:01yes206 s
Direct recommendationGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 10:37yes4022 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-09-17 13:52yes54 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 13:21yes1816 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 12:59yes55 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 11:24yes532 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-09-17 11:37yes1556 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 13:57yes15103 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 09:27yes524 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 12:24yes1511 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 10:47yes47 s
ParaphraseGemini 3.5 Flashgemini-3.5-flash2026-09-17 12:03yes927 s
ParaphrasePerplexity Sonarsonar2026-09-17 12:13yes205 s
ParaphraseGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 12:33yes3316 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-09-17 12:55yes106 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 09:23yes1721 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 12:43yes53 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 09:47no036 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-09-17 09:27yes1521 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 13:22yes2455 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 10:51yes527 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 10:42yes98 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 10:37yes49 s
ComparativeGemini 3.5 Flashgemini-3.5-flash2026-09-17 11:33yes1628 s
ComparativePerplexity Sonarsonar2026-09-17 13:39yes207 s
ComparativeGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 11:48yes159 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-09-17 10:25yes57 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 12:33yes912 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 13:07yes53 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 11:26no035 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-09-17 10:49yes1553 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 11:07yes1062 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 10:06yes520 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 11:33no04 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 13:31no03 s
Budget constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 13:53yes1223 s
Budget constrainedPerplexity Sonarsonar2026-09-17 11:38yes205 s
Budget constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 12:54yes3916 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 11:25yes97 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 10:12yes2018 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 11:17yes52 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 12:07no037 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 11:04yes821 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 12:38yes962 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 13:26yes587 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 10:42no07 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 09:53no07 s
Scale constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 13:48yes1138 s
Scale constrainedPerplexity Sonarsonar2026-09-17 14:03yes206 s
Scale constrainedGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 12:50yes1712 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 09:32no09 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 13:47yes2024 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 12:59yes53 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 13:08no037 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 12:41yes1526 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 12:33yes10102 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 10:20yes523 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 11:26yes2711 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 10:07yes24 s
Negative framingGemini 3.5 Flashgemini-3.5-flash2026-09-17 12:53yes2727 s
Negative framingPerplexity Sonarsonar2026-09-17 09:25yes206 s
Negative framingGrok 4.1 Fastspacexai/grok-4.1-fast-non-reasoning via vertex2026-09-17 10:54yes1810 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-09-17 14:07yes55 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 11:30yes2533 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 11:10yes54 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 10:15yes844 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-09-17 13:22yes2550 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 12:52yes24122 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 10:51yes1947 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

Category-scoped readings
Aiven read as Aiven for Apache Kafka
Amazon Kinesis read as Amazon Kinesis Data Streams
Instaclustr (NetApp) read as Instaclustr for Apache Kafka
Unresolved, counted raw
Amazon Ring
Apache Samza
Apache Storm
Apache Storm 2.x
CrocOTT
Cvent
Disney+
DoubleCloud Managed Service for Apache Kafka
Eventzilla
Hubilo
JW Player
JWP Connatix
Kick
Knative eventing-rabbitmq
Lightstreamer
LinkedIn
Managed Service for Apache Kafka
Marketful
Netflix
Roku
Sequel.io
Spark Streaming
Streamlabs
TikTok
Tving
VIDIZMO EnterpriseTube
Virtual PRO
Webex Events
Discontinued, still offered
No shut-down product was recommended here.
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