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Artifact and container registries · October 2026 Edition

Amazon ECR vs GitHub Packages

Zero of fourteen models named Amazon ECR first on the direct prompt; one named GitHub Packages. Amazon ECR was named by eight of the fourteen models and GitHub Packages by twelve and Amazon ECR carries 12 labels and GitHub Packages 42, so the shares are not directly comparable.

Amazon ECR

accepted challenger

Named in two categories this edition.

GitHub Packages

accepted challenger

Named in one category this edition.

First-choice share8%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%24%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#7A position in a field of 16; printed, not drawn.
Labels1242A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Amazon ECR 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 Amazon ECR · JFrog Artifactory vs GitHub Packages · Sonatype Nexus Repository vs Amazon ECR

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.
Amazon ECRFirst choices, of fourteen modelsGitHub Packages
Direct011 against GitHub Packages
Paraphrase50
Comparative00
Budget-constrained02
Scale-constrained002 against GitHub Packages
Negative007 against GitHub Packages
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 Amazon ECR and GitHub Packages stood in it.
ModelDirectAEGPParaphraseAEGPComparativeAEGPBudget-constrainedAEGPScale-constrainedAEGPNegativeAEGP
Claude Haiku 4.5AEGP
GPT-5.4 miniAE
Gemini 3.5 FlashGPGPGPGPGP
Perplexity SonarAE
Grok 4.1 FastGPGPGP
Mistral SmallGPGP
DeepSeek V4 FlashGPGPGP
Llama 4 Maverick
Qwen 3.7 FlashGPGP
Kimi K2GPGPGPGP
GLM 4.7 FlashXAEAEGPGP
MiniMax M2.5GPGP
GPT-6 LunaAEGPGP
Muse Glimmer 30BAEGP
AE Amazon ECRGP GitHub PackagesAE first choiceAE named as an alternativeAE argued againstblank: not namedEach cell is one answer, Amazon ECR on the left and GitHub Packages on the right.

The direct prompt

The plain question, one answer per model, grouped by where Amazon ECR and GitHub Packages stood in it.

GitHub Packages first, Amazon ECR not the choice

1 of 14 modelsAmazon ECR was named in the answer but not as the choice, or not at all.
Kimi K2GitHub Packages alternatives: AWS CodeArtifact, Azure Artifacts, Sonatype Nexus Repository

Neither was named

13 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5no first choice
GPT-5.4 miniSonatype Nexus Repository alternatives: AWS CodeArtifact, JFrog Artifactory
Gemini 3.5 FlashCloudsmith alternatives: AWS CodeArtifact, Azure Artifacts, GitLab Package Registry, Google Artifact Registry, Sonatype Lifecycle
Perplexity SonarJFrog Artifactory alternatives: Cloudsmith, Sonatype Nexus Repository
Grok 4.1 FastCloudsmith alternatives: AWS CodeArtifact
Mistral SmallCloudsmith alternatives: AWS, Google Cloud, Packagecloud
DeepSeek V4 FlashSonatype Nexus Repository alternatives: Azure Artifacts, Cloudsmith
Llama 4 MaverickCloudsmith alternatives: Packagecloud
Qwen 3.7 FlashJFrog Artifactory alternatives: AWS CodeArtifact, Azure Artifacts, Sonatype Lifecycle
GLM 4.7 FlashXSonatype Nexus Repository alternatives: Cloudsmith, Harbor, JFrog Artifactory
MiniMax M2.5Sonatype Nexus Repository alternatives: AWS CodeArtifact, Cloudsmith, JFrog Artifactory
GPT-6 LunaCloudsmith alternatives: AWS CodeArtifact, JFrog Artifactory, Sonatype Nexus Repository
Muse Glimmer 30BSonatype Nexus Repository alternatives: CloudRepo, Cloudsmith, JFrog Artifactory

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
GitHub Packages leads by thirty-three points.
GitHub Packages33%#1 of 12
Amazon ECR0%#12 of 12
The full small business standing →
Mid-marketThe figures above
The order flips: Amazon ECR leads at mid-market.
Amazon ECR8%#5 of 16
GitHub Packages5%#7 of 16
The full mid-market standing →
Enterprise
Amazon ECR leads by one point.
Amazon ECR1%#– of 13
GitHub Packages0%#12 of 13
The full enterprise standing →

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

What the models said about GitHub Packages

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 direct, unrestricted use of public community images from Docker Hub, GitHub Container Registry, npm/PyPI, Artifact Hub” Muse Glimmer 30B · negative prompt · hard negative
“GitHub Packages does not natively support PyPI (Python). If your team writes a significant amount of Python, GitHub Packages will not be a complete solution.” Gemini 3.5 Flash · direct prompt · soft negative
“Cons: Often less mature in terms of advanced proxying, virtual repositories, and advanced binary management compared to dedicated tools.” Gemini 3.5 Flash · scale prompt · soft negative
“For most small to medium companies, GitHub Packages is often the best choice if you're already using GitHub” Claude Haiku 4.5 · budget prompt · first choice
“The Best "All-in-One" Option: GitHub Packages / GitLab Package Registry” Gemini 3.5 Flash · budget prompt · first choice
“Top Recommendation: GitHub Packages” Kimi K2 · direct 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.