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Cloud cost management · November 2026 Edition

AWS Cost Explorer vs OpenCost

Zero of fourteen models named AWS Cost Explorer first on the direct prompt; zero named OpenCost. AWS Cost Explorer was named by fourteen of the fourteen models and OpenCost by eight and AWS Cost Explorer carries 47 labels and OpenCost 10, so the shares are not directly comparable.

AWS Cost Explorer

accepted challenger

Named in two categories this edition.

OpenCost

accepted challenger

Named in two categories this edition.

First-choice share9%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate19%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#7A position in a field of 19; printed, not drawn.
Labels4710A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, AWS Cost Explorer reading right to left. Rank and label count are printed, not drawn.Vantage was named alongside these two in thirteen of the fourteen direct answers. Vantage vs AWS Cost Explorer · Vantage vs OpenCost · CloudZero vs AWS Cost Explorer

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 cloud cost management page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
AWS Cost ExplorerFirst choices, of fourteen modelsOpenCost
Direct002 against AWS Cost Explorer
Paraphrase10
Comparative002 against AWS Cost Explorer
Budget-constrained42
Scale-constrained002 against AWS Cost Explorer
Negative103 against AWS Cost Explorer
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 AWS Cost Explorer and OpenCost stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
AWS Cost Explorer OpenCost first choice named as an alternative argued againstblank: not namedEach cell is one answer, AWS Cost Explorer on the left and OpenCost on the right.

The direct prompt

The plain question, one answer per model, grouped by where AWS Cost Explorer and OpenCost stood in it.

Neither was the first choice, one was named

1 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Mistral SmallVantage alternatives: AWS Cost Explorer, CloudZero

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 miniVantage alternatives: CloudZero, IBM Apptio Cloudability, Native Cloud Tools, VMware Tanzu CloudHealth
Gemini 3.5 FlashCloudZero alternatives: Finout, Kubecost, Vantage
Perplexity SonarVantage alternatives: CAST AI, CloudKeeper, CloudZero, Finout, Kubecost
Grok 4.20Vantage alternatives: CloudZero, Finout
DeepSeek V4 FlashVantage alternatives: CAST AI, CloudZero, Economize
Llama 4 MaverickVantage
Qwen 3.7 FlashVantage alternatives: Amnic, CAST AI, CloudZero, nOps
Kimi K2Vantage alternatives: CloudZero, Economize
GLM 4.7 FlashXVantage alternatives: CAST AI, Cloudaware, IBM Apptio Cloudability, nOps
MiniMax M2.5Vantage alternatives: Economize
GPT-6 LunaCloudZero alternatives: Finout, Vantage
Muse Glimmer 30BVantage alternatives: CloudZero, Finout, IBM Apptio Cloudability

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
AWS Cost Explorer leads by twelve points.
AWS Cost Explorer12%#2 of 17
OpenCost0%#12 of 17
The full small business standing →
Mid-marketThe figures above
AWS Cost Explorer leads by five points.
AWS Cost Explorer9%#3 of 19
OpenCost4%#7 of 19
The full mid-market standing →
Enterprise
Level: the same share of first choices.
AWS Cost Explorer0%#13 of 14
OpenCost0%#– of 14
The full enterprise standing →

What the models said about AWS Cost Explorer

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

“Free (or low cost), built directly into management consoles, but limited in cross-cloud normalization and container-level breakdown.” Gemini 3.5 Flash · comparative prompt · soft negative
“its single-cloud limitation means it doesn't provide the cross-cloud visibility that many modern organizations require” MiniMax M2.5 · comparative prompt · soft negative
“are free but don't trust them for actual optimization. They are reporting tools, not optimization platforms.” DeepSeek V4 Flash · negative prompt · soft negative
“Native tools from providers (AWS Cost Explorer/Budgets, Azure Cost Management, Google Cloud Billing) are often sufficient, free or low-cost” Grok 4.20 · negative prompt · first choice
“best first choice is usually the cloud provider's native cost tools ... teams can use native tools like AWS Cost Explorer” GPT-5.4 mini · budget prompt · first choice
“Native Cloud Provider Tools (Best Starting Point – Completely Free for Basics)... Built-in, no extra cost.” Grok 4.20 · budget prompt · first choice

What the models said about OpenCost

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

“Only Kubernetes: OpenCost / Kubecost is the lowest cost, completely free, and gives real-time cost allocation” Muse Glimmer 30B · budget prompt · first choice
“1. OpenCost ⭐ *Highly Recommended* - Cost: Completely free” GLM 4.7 FlashX · budget prompt · first choice
“OpenCost (free) or Kubecost's free tier — purpose-built for container cost monitoring” Kimi K2 · budget 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.