Atlan vs OpenMetadata
Ten of fourteen models named Atlan first on the direct prompt; zero named OpenMetadata. Atlan was named by fourteen of the fourteen models and OpenMetadata by thirteen and Atlan carries 58 labels and OpenMetadata 27, so the shares are not directly comparable.
Named in four categories this edition.
Named in two categories 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 data catalogs and governance page.
By framing
AtlanFirst choices, of fourteen modelsOpenMetadata
Across every category in the October 2026 Edition, Atlan and OpenMetadata were named in the same answer fifty-six times, of the 184 answers naming Atlan and the 94 naming OpenMetadata. In those answers OpenMetadata took the first choice eight times and Atlan sixteen.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | |||
| GPT-5.4 mini | | | | | ||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | ||||
| Grok 4.1 Fast | | | | | | |
| 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 | | | | |
Atlan OpenMetadata first choice named as an alternative argued againstblank: not namedEach cell is one answer, Atlan on the left and OpenMetadata on the right.The direct prompt
Atlan first, OpenMetadata an alternative
10 of 14 modelsOpenMetadata was named in the answer but not as the choice, or not at all.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.Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.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
OpenMetadata18%#1 of 16Atlan11%#3 of 16Atlan44%#1 of 15OpenMetadata18%#2 of 15Atlan28%#2 of 11OpenMetadata4%#5 of 11What the models said about Atlan
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Options to Avoid ... Commercial tools (Collibra, Alation, Atlan, Select Star)” DeepSeek V4 Flash · budget prompt · hard negative
“Avoid pricier ones like Atlan/Alation ($10k+/year).” Grok 4.1 Fast · budget prompt · hard negative
“a lower-tier hosted catalog like Atlan or DataGalaxy can reduce ops burden, but these are usually not the best fit for a tight budget” GPT-5.4 mini · budget prompt · soft negative
“Atlan is cited as: Gartner recognizes Atlan as a Leader in both the Metadata Management Solutions Magic Quadrant (2025) and, as of 2026, the Magic Quadrant for Data and Analytics Governance Platforms” Muse Glimmer 30B · comparative prompt · first choice
“Atlan is the leading active metadata platform in the current generation of the category and the most commonly shortlisted catalog for cloud-native data stacks in 2026.” Claude Haiku 4.5 · direct prompt · first choice
“Some modern entrants (like Atlan) bridge this gap by offering strong automation but allowing developers to extend functionality via API.” Qwen 3.7 Flash · scale prompt · first choice
What the models said about OpenMetadata
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.
“While open source options like OpenMetadata and DataHub are credible, they require substantial in-house engineering expertise to deploy, maintain, and scale.” Mistral Small · negative prompt · soft negative
“Only choose this if you have a dedicated data platform engineer who has the bandwidth to manage and upgrade the infrastructure.” Gemini 3.5 Flash · scale prompt · soft negative
“OpenMetadata is generally the better starting point due to its simpler stack and faster time-to-value.” MiniMax M2.5 · budget prompt · first choice
“OpenMetadata (Best Overall Open Source) ... this is widely considered the best open-source data catalog” GLM 4.7 FlashX · budget prompt · first choice
“The Best All-Around (Open Source): OpenMetadata ... this is currently the top contender.” Qwen 3.7 Flash · budget prompt · first choice
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.