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Feature flags · November 2026 Edition

LaunchDarkly vs PostHog Feature Flags

Four of fourteen models named LaunchDarkly first on the direct prompt; zero named PostHog Feature Flags. LaunchDarkly was named by fourteen of the fourteen models and PostHog Feature Flags by thirteen and LaunchDarkly carries 69 labels and PostHog Feature Flags 35, so the shares are not directly comparable.

LaunchDarkly

criticized challenger

Named in two categories this edition.

PostHog Feature Flags

accepted challenger

Named in one category this edition.

First-choice share24%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate39%3%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#7A position in a field of 8; printed, not drawn.
Labels6935A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, LaunchDarkly reading right to left. Rank and label count are printed, not drawn.Flagsmith was named alongside these two in twelve of the fourteen direct answers. LaunchDarkly vs Flagsmith · LaunchDarkly vs ConfigCat · LaunchDarkly vs GrowthBook

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 feature flags page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
LaunchDarklyFirst choices, of fourteen modelsPostHog Feature Flags
Direct407 against LaunchDarkly
Paraphrase603 against LaunchDarkly
Comparative110
Budget-constrained125 against LaunchDarkly
Scale-constrained101 against LaunchDarkly
Negative0011 against LaunchDarkly · 1 against PostHog Feature Flags
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the November 2026 Edition, LaunchDarkly and PostHog Feature Flags were named in the same answer eighty-eight times, of the 205 answers naming LaunchDarkly and the 106 naming PostHog Feature Flags. In those answers PostHog Feature Flags took the first choice thirteen times and LaunchDarkly twenty-five.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where LaunchDarkly and PostHog Feature Flags stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
LaunchDarkly PostHog Feature Flags first choice named as an alternative argued againstblank: not namedEach cell is one answer, LaunchDarkly on the left and PostHog Feature Flags on the right.

The direct prompt

The plain question, one answer per model, grouped by where LaunchDarkly and PostHog Feature Flags stood in it.

LaunchDarkly first, PostHog Feature Flags not the choice

4 of 14 modelsPostHog Feature Flags was named in the answer but not as the choice, or not at all.
GPT-5.4 miniLaunchDarkly alternatives: Flagsmith, GrowthBook, Unleash
Perplexity SonarLaunchDarkly alternatives: ConfigCat, GrowthBook, Harness FME, Statsig, Unleash
Grok 4.20LaunchDarkly alternatives: Flagsmith, GrowthBook, Harness FME, Statsig, Unleash
MiniMax M2.5Flagsmith, LaunchDarkly alternatives: GrowthBook, Split, Unleash

Neither was the first choice, one was named

3 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashStatsig alternatives: Flagsmith, PostHog Feature Flags, Schematic, Unleash
DeepSeek V4 FlashGrowthBook alternatives: Flagsmith, LaunchDarkly, Unleash
GPT-6 LunaStatsig alternatives: Flagsmith, LaunchDarkly

Neither was named

7 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Flagsmith alternatives: Reflag, Statsig
Mistral SmallFlagsmith, Unleash alternatives: ConfigCat, Split
Llama 4 Maverickno first choice
Qwen 3.7 FlashConfigCat, GrowthBook alternatives: Flagsmith, Unleash
Kimi K2Flagsmith, Statsig alternatives: GrowthBook
GLM 4.7 FlashXFlagsmith, GrowthBook alternatives: Split, Unleash
Muse Glimmer 30BReflag alternatives: Flagsmith, Statsig, WorkOS Feature Flags

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
PostHog Feature Flags leads by fourteen points.
PostHog Feature Flags16%#3 of 8
LaunchDarkly2%#6 of 8
The full small business standing →
Mid-marketThe figures above
The order flips: LaunchDarkly leads at mid-market.
LaunchDarkly24%#1 of 8
PostHog Feature Flags4%#7 of 8
The full mid-market standing →
Enterprise
LaunchDarkly leads by fifty-six points.
LaunchDarkly56%#1 of 10
PostHog Feature Flags0%#10 of 10
The full enterprise standing →

What the models said about LaunchDarkly

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Avoid paid-heavy tools like LaunchDarkly, Split.io, or DevCycle” Grok 4.20 · budget prompt · hard negative
“avoid it if you have a strict budget long-term” Gemini 3.5 Flash · budget prompt · hard negative
“LaunchDarkly is mature, but usage-based pricing can become complex; model evaluations, seats, environments, and experimentation costs before committing.” Perplexity Sonar · negative prompt · soft negative
“One of the most established leaders in the feature management space, ideal for large engineering organisations and enterprise teams” Claude Haiku 4.5 · comparative prompt · first choice
“Best Overall (Gold Standard) | LaunchDarkly | Industry standard, unmatched governance/RBAC, deep integrations.” Gemini 3.5 Flash · paraphrase prompt · first choice
“Choose LaunchDarkly when governance, compliance, approvals, SDK breadth, and safe enterprise releases matter most.” Perplexity Sonar · comparative prompt · first choice

What the models said about PostHog Feature Flags

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.

“they're not purely flag-focused—overkill or bloat if that's all you need” Grok 4.20 · negative prompt · soft negative
“For most early-stage companies with a tight budget, PostHog offers the best bang for buck” Qwen 3.7 Flash · budget prompt · first choice
“Choose PostHog or ConfigCat on their managed free tiers.” Gemini 3.5 Flash · budget prompt · first choice
“Choose PostHog when feature flags should live alongside product analytics and session-level product insights.” Perplexity Sonar · comparative prompt · alternative
Also compared

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.