IT AI Index
Index Vendors › Flagsmith · September 2026 Edition
1 category · Ranked

Flagsmith

149Judge labels
17First choices
12Negative labels
12 of 12Models named it
1Category
September 2026 Edition. Every number here is derived from the raw labels under vendor table vv2026-09.2, every buyer segment counted.
Best standing
17% in Feature flags for mid-market buyers
Rank 2 of 31 in the mid-market standingaccepted challenger
2 of 12 models made it the first choice on the direct prompt; 9% of its 56 labels there were negative.
By buyer segmentStrongest at mid-market.
In feature flags · 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 Flagsmith 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 rateLabelsQuadrant
Feature flagsDeveloper platform17%2 of 319%56accepted challenger

Movement

This is the first edition on this tier, so no move can be computed for Flagsmith yet. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Flagsmith across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.531004
GPT-5.4 mini12003
Gemini 3.5 Flash14016
Perplexity Sonar11114
Grok 4.1 Fast06006
Mistral Small02215
DeepSeek V4 Flash05106
Llama 4 Maverick10304
Qwen 3.7 Flash12115
Kimi K204105
GLM 4.7 FlashX02114
MiniMax M2.504004

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
Direct29 labels4
Paraphrase16 labels3
Comparative33 labels2not counted in share
Budget-constrained29 labels9
Scale-constrained16 labels1
Negative26 labels1not counted in share
First choiceAlternativeMentionNegative149 labels in all, every segment counted; 17 of the 20 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.

“Flagsmith is arguably the best entry-level SaaS platform. They offer a "Forever Free" plan that is surprisingly generous” Qwen 3.7 Flash · Feature flags · budget prompt · first choice
“self-hosting Unleash or using the free tier of Flagsmith are often the most cost-effective choices” Claude Haiku 4.5 · Feature flags · budget prompt · first choice
“The best feature flag platform for a company with a limited budget is Statsig, Flagsmith, or GrowthBook.” Llama 4 Maverick · Feature flags · budget prompt · first choice
“Flagsmith caters to mid-market companies, and it wins for teams that need deployment flexibility” Claude Haiku 4.5 · Feature flags · direct prompt · first choice

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.

“Platforms with significant limitations or red flags ... Flagsmith: ... The free tier is very limited (50k requests/month)” Mistral Small · Feature flags · negative prompt · hard negative
“Flagsmith is one platform to evaluate carefully if you need advanced rollout automation, guardrail metrics, or a large integration ecosystem” Perplexity Sonar · Feature flags · negative prompt · soft negative
“Platforms like Unleash and Flagsmith offer free, open-source self-hosted versions... present two major "buyer beware" scenarios” Gemini 3.5 Flash · Feature flags · negative prompt · soft negative
“Why to be caution: Resource Constraints and Missing Guardrails.” Qwen 3.7 Flash · Feature flags · negative prompt · soft negative

Named alongside

The products named in the same answers as Flagsmith, over the 149 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Flagsmith was named but was not.
ProductSame answerTook the first choice insteadHead to head
Unleash118 of 1495Not in the top three
GrowthBook89 of 1497Not in the top three
Statsig87 of 1497Not in the top three
PostHog68 of 14911Not in the top three
Split60 of 1491Not in the top three
DevCycle24 of 1494Not in the top three
Harness FME15 of 1490Not in the top three
Optimizely13 of 1490Not in the top three
A head-to-head page exists where both products are in a category's top three. 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 Flagsmith. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 122 of the 149 answers that named Flagsmith and are not a share of its labels.

Domains cited

harness.io82
growthbook.io74
amplitude.com57
getunleash.io53
guptadeepak.com49
configcat.com48
toolradar.com47
statsig.com46
guideflow.com44
launchdarkly.com44

544 of the 544 domain citations in answers naming Flagsmith came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Is this your product?

Claim this page

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 Flagsmith'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 Flagsmith, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at flagsmith.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.

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