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Index › Developer platform › Artifact registries › Sonatype Nexus Repository vs Amazon ECR
Artifact and container registries · October 2026 Edition

Sonatype Nexus Repository vs Amazon ECR

Five of fourteen models named Sonatype Nexus Repository first on the direct prompt; zero named Amazon ECR. Sonatype Nexus Repository was named by eleven of the fourteen models and Amazon ECR by eight and Sonatype Nexus Repository carries 20 labels and Amazon ECR 12, so the shares are not directly comparable.

Sonatype Nexus Repository

accepted challenger

Named in one category this edition.

Amazon ECR

accepted challenger

Named in two categories this edition.

First-choice share11%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate5%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#5A position in a field of 16; printed, not drawn.
Labels2012A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Sonatype Nexus Repository reading right to left. Rank and label count are printed, not drawn.Cloudsmith was named alongside these two in ten of the fourteen direct answers. JFrog Artifactory vs Sonatype Nexus Repository · JFrog Artifactory vs Amazon ECR · Sonatype Nexus Repository vs Amazon Elastic Container Registry

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 artifact and container registries page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Sonatype Nexus RepositoryFirst choices, of fourteen modelsAmazon ECR
Direct501 against Sonatype Nexus Repository
Paraphrase05
Comparative00
Budget-constrained10
Scale-constrained10
Negative00
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.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Sonatype Nexus Repository and Amazon ECR stood in it.
ModelDirectAEParaphraseAEComparativeAEBudget-constrainedAEScale-constrainedAENegativeAE
Claude Haiku 4.5AE
GPT-5.4 miniAE
Gemini 3.5 Flash
Perplexity SonarAE
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashXAEAE
MiniMax M2.5
GPT-6 LunaAE
Muse Glimmer 30BAE
Sonatype Nexus RepositoryAE Amazon ECR first choice named as an alternative argued againstblank: not namedEach cell is one answer, Sonatype Nexus Repository on the left and Amazon ECR on the right.

The direct prompt

The plain question, one answer per model, grouped by where Sonatype Nexus Repository and Amazon ECR stood in it.

Sonatype Nexus Repository first, Amazon ECR not the choice

5 of 14 modelsAmazon ECR was named in the answer but not as the choice, or not at all.
GPT-5.4 miniSonatype Nexus Repository alternatives: AWS CodeArtifact, JFrog Artifactory
DeepSeek V4 FlashSonatype Nexus Repository alternatives: Azure Artifacts, Cloudsmith
GLM 4.7 FlashXSonatype Nexus Repository alternatives: Cloudsmith, Harbor, JFrog Artifactory
MiniMax M2.5Sonatype Nexus Repository alternatives: AWS CodeArtifact, Cloudsmith, JFrog Artifactory
Muse Glimmer 30BSonatype Nexus Repository alternatives: CloudRepo, Cloudsmith, JFrog Artifactory

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.
Perplexity SonarJFrog Artifactory alternatives: Cloudsmith, Sonatype Nexus Repository
Kimi K2GitHub Packages alternatives: AWS CodeArtifact, Azure Artifacts, Sonatype Nexus Repository
GPT-6 LunaCloudsmith alternatives: AWS CodeArtifact, JFrog Artifactory, Sonatype Nexus Repository

Neither was named

6 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5no first choice
Gemini 3.5 FlashCloudsmith alternatives: AWS CodeArtifact, Azure Artifacts, GitLab Package Registry, Google Artifact Registry, Sonatype Lifecycle
Grok 4.1 FastCloudsmith alternatives: AWS CodeArtifact
Mistral SmallCloudsmith alternatives: AWS, Google Cloud, Packagecloud
Llama 4 MaverickCloudsmith alternatives: Packagecloud
Qwen 3.7 FlashJFrog Artifactory alternatives: AWS CodeArtifact, Azure Artifacts, Sonatype Lifecycle

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
Sonatype Nexus Repository leads by five points.
Sonatype Nexus Repository5%#5 of 12
Amazon ECR0%#12 of 12
The full small business standing →
Mid-marketThe figures above
Sonatype Nexus Repository leads by three points.
Sonatype Nexus Repository11%#2 of 16
Amazon ECR8%#5 of 16
The full mid-market standing →
Enterprise
Sonatype Nexus Repository leads by nineteen points.
Sonatype Nexus Repository21%#2 of 13
Amazon ECR1%#– of 13
The full enterprise standing →

What the models said about Sonatype Nexus Repository

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

“Limited integrations vs. leaders; self-host adds ops overhead.” Grok 4.1 Fast · direct prompt · soft negative
“Enterprise-grade artifact repository manager that allows development teams to store, organize, and distribute software components... Both are viable for a 500-person company.” Muse Glimmer 30B · scale prompt · first choice
“the best artifact repository for a company with a limited budget is Sonatype Nexus Repository (Community Edition)” GLM 4.7 FlashX · budget prompt · first choice
“For most mid-market B2B companies, Sonatype Nexus Repository Pro is the strongest all-around recommendation” DeepSeek V4 Flash · direct prompt · first choice

What the models said about Amazon ECR

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

“If you want a single default recommendation without more context, I'd lean toward Amazon ECR for a mid-sized B2B company” GPT-5.4 mini · paraphrase prompt · first choice
“AWS Elastic Container Registry (ECR) is the obvious choice if you're running on AWS” Claude Haiku 4.5 · paraphrase prompt · first choice
“For most mid-sized B2B companies, I'd start with Amazon ECR if you're on AWS” GLM 4.7 FlashX · paraphrase prompt · first choice
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.