Object storage · October 2026 Edition
Amazon S3 vs Wasabi Object Storage
Three of fourteen models named Amazon S3 first on the direct prompt; one named Wasabi Object Storage. Both were named by all fourteen models and Amazon S3 carries 67 labels and Wasabi Object Storage 54, so the shares are not directly comparable.
Named in four categories this edition.
Named in one category this edition.
First-choice share12%10%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate34%28%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 9; printed, not drawn.
Labels6754A 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.Backblaze B2 was named alongside these two in ten 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
Direct314 against Amazon S3 · 1 against Wasabi Object Storage
Paraphrase135 against Amazon S3 · 1 against Wasabi Object Storage
Comparative110
Budget-constrained015 against Amazon S3 · 3 against Wasabi Object Storage
Scale-constrained201 against Wasabi Object Storage
Negative109 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 October 2026 Edition, Amazon S3 and Wasabi Object Storage were named in the same answer 138 times, of the 215 answers naming Amazon S3 and the 160 naming Wasabi Object Storage. In those answers Wasabi Object Storage took the first choice twenty-two times and Amazon S3 thirty-five.
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 4.1 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 | | | | | |
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
3 of 14 modelsWasabi Object Storage was named in the answer but not as the choice, or not at all.GPT-5.4 miniAmazon S3 alternatives: Azure Blob Storage, Google Cloud Storage
MiniMax M2.5Amazon S3, Azure Blob Storage alternatives: Backblaze B2, Google Cloud Storage, Wasabi Object Storage
GPT-6 LunaAmazon S3 alternatives: Azure Blob Storage, Cloudflare R2, Google Cloud Storage
Wasabi Object Storage first, Amazon S3 not the choice
1 of 14 modelsAmazon S3 was named in the answer but not as the choice, or not at all.Qwen 3.7 FlashBackblaze B2, Wasabi Object Storage
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 FlashCloudflare R2 alternatives: Backblaze B2, Wasabi Object Storage
Perplexity SonarGoogle Cloud Storage alternatives: Amazon S3, Backblaze B2, Wasabi Object Storage
Grok 4.1 FastBackblaze B2 alternatives: Cloudflare R2, Wasabi Object Storage
Mistral SmallBackblaze B2 alternatives: Amazon S3, Cloudian HyperStore
DeepSeek V4 FlashBackblaze B2 alternatives: Amazon S3, Cloudflare R2
GLM 4.7 FlashXBackblaze B2 alternatives: Amazon S3, Cloudflare R2, MinIO AIStor, Wasabi Object Storage
Muse Glimmer 30Bno first choice alternatives: Amazon S3, Backblaze B2, Cloudflare R2, Wasabi Object Storage
Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5no first choice
Llama 4 Maverickno first choice
Kimi K2Cloudflare R2 alternatives: Azure Blob Storage, Backblaze B2, Google Cloud Storage
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 fifteen points.
Wasabi Object Storage20%#2 of 9Amazon S35%#5 of 9Mid-marketThe figures above
The order flips: Amazon S3 leads at mid-market.
Amazon S312%#3 of 9Wasabi Object Storage10%#4 of 9Enterprise
Amazon S3 leads by twenty-one points.
Amazon S344%#1 of 12Wasabi Object Storage23%#2 of 12What 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 eight in this category shown.
“Avoid hyperscalers (AWS/GCP/Azure) on tight budgets due to egress/API add-ons.” Grok 4.1 Fast · budget prompt · hard negative
“Traditional hyperscalers like AWS S3 are incredibly powerful but often punish growing mid-sized companies with unpredictable API transaction fees and steep "egress taxes"” Gemini 3.5 Flash · paraphrase prompt · soft negative
“Be cautious if… You're comparing only the per-GB storage price. Requests, retrievals, transfers, replication, and archive-tier rules can also affect the bill” GPT-6 Luna · negative prompt · soft negative
“Best for: Enterprise workloads, S3-native applications... AWS S3, Azure Blob, and GCS offer the most comprehensive feature sets” GLM 4.7 FlashX · comparative prompt · first choice
“If you want one answer without more context: choose Amazon S3 unless your company is already standardized on Azure or GCP.” GPT-5.4 mini · direct prompt · first choice
“The industry standard. Most third-party tools default to S3 compatibility because it has the largest ecosystem” Qwen 3.7 Flash · 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.
“Services to Avoid ... Wasabi Technologies | • 90‑day minimum retention per object” MiniMax M2.5 · negative prompt · hard negative
“Why avoid or extra cautious? 90-day minimum retention policy” Grok 4.1 Fast · negative prompt · hard negative
“Wasabi has a 90-day minimum storage commitment... This is fine for long-term archives but terrible for highly volatile temporary files.” Gemini 3.5 Flash · scale prompt · soft negative
“Wasabi - Best Overall Value ... Bottom line: For pure cost savings, Backblaze B2 or Wasabi will save you 70-80%” Kimi K2 · budget prompt · first choice
“the best object storage service is typically either Wasabi or Backblaze B2” Qwen 3.7 Flash · direct prompt · first choice
“Choose Wasabi if: - You want the simplest, most predictable pricing” Kimi K2 · paraphrase prompt · first choice
Also compared
Backblaze B2 vs Amazon S3Backblaze B2 vs Wasabi Object StorageCloudflare R2 vs Amazon S3Cloudflare R2 vs Wasabi Object StorageAmazon S3 vs Azure Blob StorageAmazon S3 vs DigitalOcean SpacesAmazon S3 vs Google Cloud StorageAmazon S3 vs Cloudian HyperStoreWasabi Object Storage vs Azure Blob StorageWasabi Object Storage vs DigitalOcean SpacesWasabi Object Storage vs Google Cloud StorageWasabi Object Storage vs Cloudian HyperStoreAll twenty-eight head-to-head pages and the full object storage standing
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.