AI Index / Open-source log management tools

Best Open-source log management tools

What AI assistants actually recommend when buyers ask about open-source log management tools — measured on a rolling 4-week window across 4 engines, published as open data.

Updated 2026-09-18 · 28 sampled answers · rolling 4-week window · methodology

Rankings are measured from sampled AI answers — never editorial, never paid. Orbator builds AI-visibility tooling; when Orbator itself appears in any category, it is measured by the same rules as everyone else.

Rolling 4-week window28 samples4 enginesmethodologydata studies

Measured by Orbatormethodology owner Henrik Tellewindow ends Sep 18, 2026

Sample: 28 AI answers · Window: Aug 21, 2026Sep 18, 2026 (4-week rolling) · trend vs prior 4 weeks (98 answers)

Samples by engine: GEMINI 7 (last run Sep 6, 2026) · CHATGPT 7 (last run Sep 6, 2026) · CLAUDE 7 (last run Sep 7, 2026) · PERPLEXITY 7 (last run Sep 6, 2026) · GROK 0 (last run Aug 18, 2026 — stalest)

How these numbers are made: sampling design · prompt provenance · what counts as a mention · what we cannot see

On the record: This ranking is frozen as a dated snapshot every day. View this category's history to see what entered and left the ranking and when, or read what the engines actually said on a given day.

What is the best open-source log management tools?

Across 28 sampled AI answers from 4 engines, Grafana is recommended most often — appearing in 85.7% of recommendations, followed by Loki (82.1%) and Graylog (71.4%).

This is a measurement of share of voice across 4 AI engines — not an editorial pick. See the full ranking below.

How this ranking is measured

Orbator asked Gemini, ChatGPT, Claude and Perplexity buyer questions about open-source log management tools and sampled 28 answers between Aug 21, 2026 and Sep 18, 2026. Recommendation share counts the answers that recommended or listed a product, so a passing mention or a warning adds nothing to it. A category publishes once it holds at least 20 independently sampled answers in the window. Read the full methodology or download this ranking as CSV.

How to choose Open-source log management tools

The seven sampled prompts split into five intents, and the leaders differ by intent. Loki was recommended in 100% of the 12 best_in_category runs. Grafana and Loki each led the 12 recommendation runs at 83.3%. In the 6 alternatives runs and the 6 comparison runs, Grafana, Graylog and Loki each sat at 83.3%. The 6 problem_solving runs, which cover pipelines handling millions of events per day, went to OpenSearch at 100%.

So the shortlist depends on the question being asked. A buyer framing the decision as pick-one for a small DevOps team lands on a different set than one framing it as scale engineering. Engine agreement also varies. Graylog ran from 35.7% of ChatGPT's 14 answers to 100% of Gemini's 7 answers in the 4-week window to 2026-09-05. No pricing fact is recorded for any of the five, so cost has to be checked at source.

Written from this window's measured data · not yet reviewed

recommendedlistedneutral mentionwarned againstRecommendation share counts answers that recommend or list it — neutral mentions and warnings shown for transparency
#ProductShareTrendEngines
1

grafana.com

85.7%

95% CI 68.594.3%

24 mentions · avg pos 3.4

first pick 41.7%

GEMINI 100%CHATGPT 85.7%CLAUDE 85.7%PERPLEXITY 71.4%
Claim
2
Loki

82.1%

95% CI 64.492.1%

23 mentions · avg pos 3.1

first pick 47.8%

GEMINI 100%CHATGPT 71.4%CLAUDE 57.1%PERPLEXITY 100%
Claim
3

graylog.org

71.4%

95% CI 52.984.7%

20 mentions · avg pos 3.7

first pick 15%

GEMINI 85.7%CHATGPT 57.1%CLAUDE 42.9%PERPLEXITY 100%
Claim
4

kubernetes.io

67.9%

95% CI 49.382.1%

19 mentions · avg pos 3.3

first pick 42.1%

GEMINI 85.7%CHATGPT 71.4%CLAUDE 57.1%PERPLEXITY 57.1%
Claim
Features: Secret and configuration management ↗ source · verified Sep 5, 2026
5

openobserve.ai

53.6%

95% CI 35.870.5%

15 mentions · avg pos 5.1

first pick 6.7%

GEMINI 57.1%CHATGPT 42.9%CLAUDE 42.9%PERPLEXITY 71.4%
Claim
6

signoz.io

50%

95% CI 32.667.4%

14 mentions · avg pos 4.6

first pick 0%

GEMINI 57.1%CHATGPT 57.1%CLAUDE 28.6%PERPLEXITY 57.1%
Claim
7

elastic.co

46.4%

95% CI 29.564.2%

13 mentions · avg pos 3.5

first pick 30.8%

GEMINI 71.4%CHATGPT 42.9%CLAUDE 42.9%PERPLEXITY 28.6%
Claim
8

opensearch.org

46.4%

95% CI 29.564.2%

13 mentions · avg pos 6.1

first pick 0%

GEMINI 42.9%CHATGPT 57.1%CLAUDE 28.6%PERPLEXITY 57.1%
Claim
9

prometheus.io

42.9%

95% CI 26.560.9%

12 mentions · avg pos 3.1

first pick 25%

GEMINI 14.3%CHATGPT 42.9%CLAUDE 85.7%PERPLEXITY 28.6%
Claim
10
Grafana Loki

42.9%

95% CI 26.560.9%

12 mentions · avg pos 4

first pick 16.7%

GEMINI 85.7%CHATGPT 14.3%CLAUDE 42.9%PERPLEXITY 28.6%
Claim
11

opentelemetry.io

39.3%

95% CI 23.657.6%

11 mentions · avg pos 4.2

first pick 9.1%

GEMINI 42.9%CHATGPT 85.7%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
12
ELK

32.1%

95% CI 17.950.7%

9 mentions · avg pos 5.6

first pick 22.2%

GEMINI 85.7%CLAUDE 28.6%PERPLEXITY 14.3%
Claim
13
Logstash

25%

95% CI 12.743.4%

7 mentions · avg pos 2.6

first pick 28.6%

GEMINI 71.4%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
14
Kibana

25%

95% CI 12.743.4%

7 mentions · avg pos 5.1

first pick 28.6%

GEMINI 71.4%CHATGPT 28.6%
Claim
15
ELK Stack

25%

95% CI 12.743.4%

7 mentions · avg pos 7

first pick 28.6%

GEMINI 71.4%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
16

fluentbit.io

21.4%

95% CI 10.239.5%

6 mentions · avg pos 3

first pick 16.7%

GEMINI 28.6%CHATGPT 14.3%CLAUDE 28.6%PERPLEXITY 14.3%
Claim
17

clickhouse.com

21.4%

95% CI 10.239.5%

6 mentions · avg pos 5.2

first pick 16.7%

GEMINI 14.3%CHATGPT 42.9%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
18

vector.co

17.9%

95% CI 7.935.6%

5 mentions · avg pos 3.2

first pick 20%

GEMINI 14.3%CHATGPT 14.3%CLAUDE 14.3%PERPLEXITY 28.6%
Claim
19

fluentd.org

17.9%

95% CI 7.935.6%

5 mentions · avg pos 6.6

first pick 0%

GEMINI 42.9%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
20

docker.com

14.3%

95% CI 5.731.5%

4 mentions · avg pos 1.3

first pick 75%

GEMINI 42.9%CLAUDE 14.3%
Claim
Pricing: Pro: $11 a month, $9 a year (free tier available) ↗ source · verified Sep 5, 2026
Features: Docker Compose ↗ source · verified Sep 5, 2026
Platforms: Linux ↗ source · verified Sep 5, 2026
21

splunk.com

14.3%

95% CI 5.731.5%

4 mentions · avg pos 3

first pick 0%

CHATGPT 28.6%PERPLEXITY 28.6%
Claim
22

mongodb.com

14.3%

95% CI 5.731.5%

4 mentions · avg pos 8

first pick 0%

GEMINI 14.3%CHATGPT 14.3%CLAUDE 28.6%
Claim
Pricing: M2: $9 a month (free tier available) ↗ source · verified Sep 5, 2026
Features: Multi-document ACID transactions ↗ source · verified Sep 5, 2026
Platforms: AWS ↗ source · verified Sep 5, 2026
Integrations: Apache Kafka ↗ source · verified Sep 5, 2026
23

datadoghq.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 3.7

first pick 0%

CHATGPT 28.6%CLAUDE 14.3%
Claim
24
Kafka

10.7%

95% CI 3.727.2%

3 mentions · avg pos 4.3

first pick 0%

GEMINI 14.3%CLAUDE 14.3%PERPLEXITY 14.3%
Claim
25

parseable.com

10.7%

95% CI 3.727.2%

3 mentions · avg pos 4.5

first pick 33.3%

CLAUDE 28.6%PERPLEXITY 14.3%
Claim
26

wazuh.com

7.1%

95% CI 222.6%

2 mentions · avg pos 3

first pick 50%

GEMINI 28.6%
Claim
27
syslog-ng

7.1%

95% CI 222.6%

2 mentions · avg pos 6

first pick 0%

GEMINI 28.6%
Claim
28

aws.amazon.com

7.1%

95% CI 222.6%

2 mentions · avg pos 10.5

first pick 0%

GEMINI 28.6%
Claim
Features: pay-as-you-go approach for pricing ↗ source · verified Sep 5, 2026
29

min.io

3.6%

95% CI 0.617.7%

1 mentions · avg pos 1

first pick 100%

GEMINI 14.3%
Claim
30

newrelic.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 2

first pick 0%

CHATGPT 14.3%
Claim
31

datadog.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 3

first pick 0%

CHATGPT 14.3%
Claim
32
Splunk Enterprise

3.6%

95% CI 0.617.7%

1 mentions · avg pos 4

first pick 0%

PERPLEXITY 14.3%
Claim
33
VictoriaLogs

3.6%

95% CI 0.617.7%

1 mentions · avg pos 4

first pick 0%

PERPLEXITY 14.3%
Claim
34
LogTide

3.6%

95% CI 0.617.7%

1 mentions · avg pos 5

first pick 0%

GEMINI 14.3%
Claim
35
Quickwit

3.6%

95% CI 0.617.7%

1 mentions · avg pos 5

first pick 0%

CHATGPT 14.3%
Claim
36
Redpanda

3.6%

95% CI 0.617.7%

1 mentions · avg pos 5

first pick 0%

CLAUDE 14.3%
Claim
37

kafka.apache.org

3.6%

95% CI 0.617.7%

1 mentions · avg pos 7

first pick 0%

GEMINI 14.3%
Claim
38

rabbitmq.com

3.6%

95% CI 0.617.7%

1 mentions · avg pos 8

first pick 0%

GEMINI 14.3%
Claim
39
Promtail

3.6%

95% CI 0.617.7%

1 mentions · avg pos 26

first pick 0%

GEMINI 14.3%
Claim
40

betterstack.com

3.6%

95% CI 0.617.7%

1 mentions

first pick 0%

CHATGPT 14.3%
Claim
41
Papertrail

3.6%

95% CI 0.617.7%

1 mentions

first pick 0%

CHATGPT 14.3%
Claim

Reading the numbers: Share is a point estimate on 28 sampled answers, so each row also shows its 95% CI — the Wilson score interval around that share. When two products' intervals overlap, the gap between them isn't statistically meaningful at this sample size. First pick is the share of a product's recommending answers where it was named first, which separates “always mentioned” from “usually the top recommendation”. Full methodology.

Independence: Orbator customers are badged for disclosure. Customer status does not affect prompts, sampling, extraction, or ranking — see the methodology. Your product on this list? Claim it to see the prompts behind your rank and track it weekly.

Watch this category

These rankings move. Get one email a week on who AI recommends in Open-source log management tools. No account needed.

Compare the leaders

Head-to-head pages for products ranked in Open-source log management tools. Each one sets out sourced facts side by side, plus which product AI assistants recommend more, engine by engine.

The top five Open-source log management tools, one by one

Loki was recommended in 85.7% of 42 sampled answers in the 4-week window to 2026-09-05, and was first recommendation in 50% of runs. Its mention breakdown splits into 25 recommended and 11 listed. Engine spread runs from 100% of Gemini's 7 answers, Grok's 7 and Perplexity's 7, down to 64.3% of ChatGPT's 14 answers.

Grafana was recommended in 83.3% of 42 sampled answers in the same window, with a first recommendation rate of 37.1%. The breakdown is 24 recommended against 11 listed. Highest engine share was 100% of Gemini's 7 answers, matched by Grok and Perplexity at 7 runs each; lowest was 64.3% of ChatGPT's 14 answers.

Kubernetes was recommended in 66.7% of 42 sampled answers, with 20 recommended and 8 listed. It ran from 100% of Gemini's 7 answers and Grok's 7 answers down to 42.9% of Perplexity's 7 answers. Its published feature fact is automated rollouts and rollbacks, last verified 2026-09-05.

OpenSearch was recommended in 66.7% of 42 sampled answers and led the problem_solving intent at 100% of 6 runs. Its breakdown is 16 recommended, 12 listed, 2 warned against. Highest was 100% of Grok's 7 answers, lowest 42.9% of Claude's 7 answers.

Graylog was recommended in 66.7% of 42 sampled answers, with 11 recommended and 17 listed, the only top-five product listed more often than recommended. It reached 100% of Gemini's 7 answers and 35.7% of ChatGPT's 14 answers.

Written from this window's measured data · not yet reviewed

Where the engines disagree

Four of the five engines recommended the same product most among the top five. Loki led for Claude across 7 answers, for Gemini across 7 answers, for Grok across 7 answers and for Perplexity across 7 answers. ChatGPT was the exception, with OpenSearch leading among the top five across its 14 answers.

The widest gap between engines belongs to Graylog. It was recommended in 35.7% of ChatGPT's 14 answers and in 100% of Gemini's 7 answers, a spread of 64.3 points. Kubernetes also moved a long way across engines, from 42.9% of Perplexity's 7 answers to 100% of Gemini's 7 answers. Loki and Grafana were the steadiest of the five, each sitting at 100% on three engines and 64.3% of ChatGPT's 14 answers.

Written from this window's measured data · not yet reviewed

What moved this window

This is the first measured window on record for open-source log management tools. It runs 2026-08-08 to 2026-09-05, 28 days, on 42 sampled answers across 45 ranked products and five engines. There is no prior window to compare against, so no product entered or left the top ten and no share change can be reported yet.

Loki leads the first window, recommended in 85.7% of those 42 answers and first recommendation in 50% of runs. Grafana follows at 83.3% of 42. Kubernetes, OpenSearch and Graylog all sit at 66.7% of 42, separated in this snapshot only by how often they were listed rather than recommended and by average position, which ranges from 3 for Kubernetes to 6.7 for Graylog. The next window will show which of those holds.

Written from this window's measured data · not yet reviewed

What the engines actually said

Every number on this page is measured from sampled answers, and those answers are kept. The archive holds dated excerpts of what each engine answered, never full answers. Read the answer archive for open-source log management tools to see the excerpts by date and engine, or view the ranking history to see what entered and left this ranking and when.

Questions buyers ask about Open-source log management tools

What is the best open-source log management tools?

Across 28 sampled AI answers from 4 engines (Aug 21, 2026 to Sep 18, 2026), Grafana is recommended most often for open-source log management tools, appearing in 85.7% of recommendations, followed by Loki (82.1%). This is a measurement of what AI assistants recommend, not an editorial verdict.

What does ChatGPT recommend for open-source log management tools?

ChatGPT recommends Grafana most often for open-source log management tools. It appears as a recommendation in 85.7% of ChatGPT's sampled answers in this window (Aug 21, 2026 to Sep 18, 2026). Other engines answer differently. The per-engine breakdown in the ranking shows each one.

How is this measured?

Orbator samples AI answers to buyer questions across 4 engines and counts how often each product is recommended. No product pays for placement. The open-source log management tools ranking is based on 28 answers in the current 4-week window (Aug 21, 2026 to Sep 18, 2026). Full methodology is published at https://www.orbator.io/ai-index/methodology.

Compare the top open-source log management tools side by side

Verified facts for the most-recommended products — each sourced and dated. No editorial scoring, just the data side by side.

Kuberneteskubernetes.ioDockerdocker.comMongoDBmongodb.comAWSaws.amazon.com
PricingPro: $11 a month, $9 a year (free tier available) ↗ sourceverified Sep 5, 2026M2: $9 a month (free tier available) ↗ sourceverified Sep 5, 2026
FeaturesSecret and configuration management ↗ sourceverified Sep 5, 2026Docker Compose ↗ sourceverified Sep 5, 2026Multi-document ACID transactions ↗ sourceverified Sep 5, 2026pay-as-you-go approach for pricing ↗ sourceverified Sep 5, 2026
PlatformsLinux ↗ sourceverified Sep 5, 2026AWS ↗ sourceverified Sep 5, 2026
IntegrationsApache Kafka ↗ sourceverified Sep 5, 2026

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