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Artifact and container registries · November 2026 Edition

Sonatype Nexus Repository vs Amazon ECR

Four of fourteen models named Sonatype Nexus Repository first on the direct prompt; zero named Amazon ECR. Sonatype Nexus Repository was named by thirteen of the fourteen models and Amazon ECR by ten and Sonatype Nexus Repository carries 38 labels and Amazon ECR 14, so the shares are not directly comparable.

Sonatype Nexus Repository

accepted challenger

Named in one category this edition.

Amazon ECR

accepted challenger

Named in one category this edition.

First-choice share28%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate5%7%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#3A position in a field of 15; printed, not drawn.
Labels3814A 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.JFrog Artifactory was named alongside these two in twelve of the fourteen direct answers. Sonatype Nexus Repository vs JFrog Artifactory · Sonatype Nexus Repository vs GitHub Packages · Sonatype Nexus Repository vs Harbor

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
Direct40
Paraphrase051 against Sonatype Nexus Repository
Comparative10
Budget-constrained120
Scale-constrained10
Negative001 against Sonatype Nexus Repository · 1 against Amazon ECR
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 4.5
GPT-5.4 miniAE
Gemini 3.5 Flash
Perplexity SonarAEAE
Grok 4.20
Mistral SmallAE
DeepSeek V4 FlashAE
Llama 4 Maverick
Qwen 3.7 FlashAEAE
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5AE
GPT-6 LunaAEAE
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

4 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
Kimi K2Sonatype Nexus Repository alternatives: Cloudsmith, GitHub Packages
GLM 4.7 FlashXSonatype Nexus Repository alternatives: Harbor, JFrog Artifactory
MiniMax M2.5Sonatype Nexus Repository alternatives: AWS CodeArtifact, GitHub Packages, Google Artifact Registry, JFrog Artifactory

Neither was the first choice, one was named

7 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashGitHub Packages, GitLab Package Registry alternatives: AWS CodeArtifact, Azure Artifacts, Cloudsmith, ECR, JFrog Artifactory, Sonatype Nexus Repository
Perplexity SonarCloudsmith alternatives: AWS CodeArtifact, GitHub Packages, JFrog Artifactory, Sonatype Nexus Repository
Mistral SmallJFrog Artifactory alternatives: AWS CodeArtifact, Azure Artifacts, Cloudsmith, Google Artifact Registry, Harbor, Sonatype Nexus Repository
DeepSeek V4 FlashGitHub Packages, JFrog Artifactory alternatives: AWS CodeArtifact, Azure Artifacts, Cloudsmith, Google Artifact Registry, Sonatype Nexus Repository
Llama 4 MaverickJFrog Artifactory alternatives: Amazon Elastic Container Registry, GitHub Packages, Google Artifact Registry, Sonatype Nexus Repository
GPT-6 LunaCloudsmith alternatives: AWS CodeArtifact, JFrog Artifactory, Sonatype Nexus Repository
Muse Glimmer 30BJFrog Artifactory alternatives: Cloudsmith, Sonatype Nexus Repository

Neither was named

3 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Artifactory, Nexus Repository alternatives: AWS CodeArtifact, GitHub Packages, GitLab Package Registry
Grok 4.20JFrog Artifactory alternatives: AWS CodeArtifact, Azure Artifacts, Cloudsmith, GHCR, GitHub Packages, Harbor, ProGet, Sonatype Lifecycle
Qwen 3.7 FlashJFrog Artifactory alternatives: AWS ECR, Azure Container Registry, GitLab Package Registry, Google Artifact Registry, 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 nine points.
Sonatype Nexus Repository12%#2 of 13
Amazon ECR3%#5 of 13
The full small business standing →
Mid-marketThe figures above
Sonatype Nexus Repository leads by twenty points.
Sonatype Nexus Repository28%#1 of 15
Amazon ECR8%#3 of 15
The full mid-market standing →
Enterprise
Sonatype Nexus Repository leads by twenty points.
Sonatype Nexus Repository22%#2 of 16
Amazon ECR2%#7 of 16
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. Five of six in this category shown.

“Avoid Nexus OSS for containers unless you have time to tune it.” DeepSeek V4 Flash · negative prompt · hard negative
“though it may require more setup and maintenance than JFrog or cloud-native options” Mistral Small · paraphrase prompt · soft negative
“The Best All-Around Free Solution: Sonatype Nexus Repository OSS ... widely considered the industry standard for cost-conscious companies.” Qwen 3.7 Flash · budget prompt · first choice
“Sonatype Nexus Repository Community Edition or Harbor are the best choices due to their comprehensive feature sets and zero cost” Mistral Small · budget prompt · first choice
“The best artifact repository for a company with a limited budget is Sonatype Nexus Community Edition, which is free and self-hosted.” Llama 4 Maverick · budget 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. Four of five in this category shown.

“you should still: Ensure they are properly configured and not publicly exposed unless necessary.” Mistral Small · negative prompt · soft negative
“AWS workloads: Amazon ECR. It supports image scanning, lifecycle cleanup, and cross-account or cross-region replication.” GPT-6 Luna · paraphrase prompt · first choice
“Primarily AWS, ECS/EKS/Fargate today → start with Amazon ECR for zero egress pull costs inside AWS and IAM-native access.” Muse Glimmer 30B · paraphrase prompt · first choice
“Best default for most mid-sized B2B companies: AWS ECR, ACR, or Artifact Registry depending on your cloud.” GPT-5.4 mini · 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.