Object storage · November 2026 Edition
Amazon S3 vs Wasabi Object Storage
Five of fourteen models named Amazon S3 first on the direct prompt; zero named Wasabi Object Storage. Both were named by all fourteen models and Amazon S3 carries 68 labels and Wasabi Object Storage 57, so the shares are not directly comparable.
Named in five categories this edition.
Named in one category this edition.
First-choice share16%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate35%19%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 8; printed, not drawn.
Labels6857A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Amazon S3 reading right to left. Rank and label count are printed, not drawn.Cloudflare R2 was named alongside these two in twelve of the fourteen direct answers. Backblaze B2 vs Amazon S3 · Backblaze B2 vs Wasabi Object Storage · Cloudflare R2 vs Amazon S3
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 object storage 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 S3First choices, of fourteen modelsWasabi Object Storage
Direct503 against Amazon S3 · 1 against Wasabi Object Storage
Paraphrase117 against Amazon S3
Comparative110
Budget-constrained115 against Amazon S3 · 1 against Wasabi Object Storage
Scale-constrained101 against Amazon S3
Negative008 against Amazon S3 · 9 against Wasabi Object Storage
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, Amazon S3 and Wasabi Object Storage were named in the same answer 144 times, of the 227 answers naming Amazon S3 and the 170 naming Wasabi Object Storage. In those answers Wasabi Object Storage took the first choice twenty times and Amazon S3 thirty-one.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Amazon S3 and Wasabi Object Storage stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | |||
| GPT-5.4 mini | | | | | | |
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | | | |
| Grok 4.20 | | | | | | |
| 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 | | | | | | |
Amazon S3 Wasabi Object Storage first choice named as an alternative argued againstblank: not namedEach cell is one answer, Amazon S3 on the left and Wasabi Object Storage on the right.The direct prompt
The plain question, one answer per model, grouped by where Amazon S3 and Wasabi Object Storage stood in it.
Amazon S3 first, Wasabi Object Storage an alternative
5 of 14 modelsWasabi Object Storage was named in the answer but not as the choice, or not at all.Claude Haiku 4.5Amazon S3 alternatives: Azure Blob Storage, Google Cloud Storage
GPT-5.4 miniAmazon S3 alternatives: Cloudflare R2, Google Cloud Storage
Gemini 3.5 FlashAmazon S3, Cloudflare R2 alternatives: Azure Blob Storage, Backblaze B2, Google Cloud Storage, MinIO AIStor, Wasabi Object Storage
Mistral SmallAmazon S3 alternatives: Azure Blob Storage, Backblaze B2, Google Cloud Storage, MEGA S4
GPT-6 LunaAmazon S3 alternatives: Azure Blob Storage, Cloudflare R2, Google Cloud Storage
Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.Perplexity SonarBackblaze B2 alternatives: Amazon S3, Azure Blob Storage, Cloudflare R2, Google Cloud Storage
Grok 4.20Cloudflare R2 alternatives: Amazon S3, Backblaze B2
Llama 4 MaverickBackblaze B2 alternatives: Amazon S3, Cloudflare R2
Qwen 3.7 FlashBackblaze B2 alternatives: Amazon S3, Azure Blob Storage, Cloudflare R2, Google Cloud Storage, Wasabi Object Storage
Kimi K2Cloudflare R2 alternatives: Azure Blob Storage, Backblaze B2, Wasabi Object Storage
GLM 4.7 FlashXBackblaze B2, Cloudflare R2 alternatives: Amazon S3, Azure Blob Storage, Google Cloud Storage
MiniMax M2.5Backblaze B2 alternatives: Amazon S3, Cloudflare R2
Muse Glimmer 30BBackblaze B2 alternatives: Cloudflare R2, Wasabi Object Storage
Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.DeepSeek V4 FlashBackblaze B2 alternatives: Cloudflare R2
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
Wasabi Object Storage leads by nine points.
Wasabi Object Storage16%#3 of 8Amazon S37%#4 of 8Mid-marketThe figures above
The order flips: Amazon S3 leads at mid-market.
Amazon S316%#3 of 8Wasabi Object Storage4%#4 of 8Enterprise
Amazon S3 leads by twenty-eight points.
Amazon S343%#1 of 11Wasabi Object Storage15%#2 of 11What the models said about Amazon S3
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Avoid using their Standard S3 tiers if you are on a budget—their egress fees ($90+ per TB downloaded) will catch you off guard.” Gemini 3.5 Flash · budget prompt · hard negative
“AWS S3 Standard for small workloads: $0.023/GB + $0.09/GB egress adds up fast” Kimi K2 · budget prompt · hard negative
“Avoid for tight budgets: AWS S3, Azure Blob, or Google Cloud Storage” Grok 4.20 · budget prompt · hard negative
“The Industry Standard: AWS S3 ... Best for: Deep ecosystem integration, complex security/compliance needs, and teams already built on AWS.” Gemini 3.5 Flash · direct prompt · first choice
“For most mid-market B2B companies, AWS S3 is the safest choice due to its maturity, extensive feature set, and broad integration support.” Claude Haiku 4.5 · direct prompt · first choice
“Market leader with a full tier ladder from frequent access to archive... S3 is the default if you are already on AWS” Muse Glimmer 30B · comparative prompt · first choice
What the models said about Wasabi Object Storage
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Verdict: Avoid unless you're certain your use case fits their model (long-term cold storage).” DeepSeek V4 Flash · negative prompt · hard negative
“Services with Significant Gotchas (Strongly Consider Avoiding for Most Users) - Wasabi” Grok 4.20 · negative prompt · hard negative
“Wasabi's 90-day minimum retention is the most commonly cited reason to avoid a service” Mistral Small · negative prompt · hard negative
“Wasabi and Backblaze B2 are the top recommendations for budget-conscious companies” Mistral Small · budget prompt · first choice
“Wasabi Hot Cloud Storage — *Best All-Around for Backups & IT Operations*” Gemini 3.5 Flash · paraphrase prompt · first choice
“Wasabi is also frequently mentioned for S3-compatible use: $0.0070/GB-mo with FREE egress, but with a 1 TB minimum” Muse Glimmer 30B · paraphrase 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.