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IT AI Index
Index › Products › OpenTofu · October 2026 Edition
1 category · Ranked

OpenTofu

159Judge labels
49First choices
3Negative labels
14 / 14Models named it
1Category
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.8, every buyer segment counted.
Best standing
35% in IaC for mid-market buyers
Rank 2 of 59 in the mid-market standingendorsed leader
4 of 14 models made it the first choice on the direct prompt; 0% of its 54 labels there were negative.
What the models named instead of OpenTofu →
By buyer segmentStrongest at mid-market.
In iac · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named OpenTofu for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrantSince September 2026
Infrastructure as codeCloud and infrastructure35%2 of 590%54endorsed leader▼−5Since September 2026: 39% → 34%, −5 points. Inside the 11-point floor: within noise. Read over the models both editions asked.

Movement

Since September 2026, OpenTofu held within the floor in its one category: no change cleared 11 points.

Best category · IaC · by segment

Small business▼−5Since September 2026: 33% → 28%, −5 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
28%from 33% in September 2026
Inside the floor by 6 pointsRank 2 of 42, unchanged
Mid-market▼−5Since September 2026: 39% → 34%, −5 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
34%from 39% in September 2026
Inside the floor by 6 pointsRank 2 of 51, unchanged
Enterprise▼−4Since September 2026: 18% → 13%, −4 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
13%from 18% in September 2026
Inside the floor by 7 pointsRank 2 of 57, unchanged

All categories · Mid-market

CategorySeptember 2026NowChangeReadingRank
IaC39%34%▼−5Since September 2026: 39% → 34%, −5 points. Inside the 11-point floor: within noise. Read over the models both editions asked.Within noiseRank 2 of 59, unchanged

Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.

The floor is 11 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions

By model

How each model treated OpenTofu across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
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ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500101
GPT-5.4 mini31004
Gemini 3.5 Flash51006
Perplexity Sonar32005
Grok 4.2023005
Mistral Small01001
DeepSeek V4 Flash42006
Llama 4 Maverick10102
Qwen 3.7 Flash12104
Kimi K221003
GLM 4.7 FlashX12003
MiniMax M2.502103
GPT-6 Luna33006
Muse Glimmer 30B41005

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct30 labels12
Paraphrase24 labels5
Comparative33 labels15not counted in share
Budget-constrained33 labels27
Scale-constrained16 labels5
Negative23 labels13not counted in share
First choiceAlternativeMentionNegative159 labels in all, every segment counted; 49 of the 77 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Use OpenTofu as your primary provisioning tool — it's free, open source, and fully compatible with the massive Terraform ecosystem.” DeepSeek V4 Flash · IaC · budget prompt · first choice
“write your code in standard HCL (which is fully compatible with both OpenTofu and Terraform). This keeps your options open.” Gemini 3.5 Flash · IaC · scale prompt · first choice
“I'd recommend starting with OpenTofu (or Terraform if you prefer HashiCorp's support and don't mind the BSL license)” DeepSeek V4 Flash · IaC · paraphrase prompt · first choice
“OpenTofu (an open-source fork of Terraform) stands out as the best infrastructure-as-code (IaC) tool overall.” Grok 4.20 · IaC · budget prompt · first choice

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

No model argued against it.

Named alongside

The products named in the same answers as OpenTofu, over the 159 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and OpenTofu was named but was not.
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ProductSame answerTook the first choice insteadHead to head
Pulumi147 of 1599Not among the top eight
AWS CloudFormation100 of 1592Not among the top eight
AWS CDK71 of 1590Not among the top eight
Azure Bicep64 of 1590Not among the top eight
Spacelift35 of 1592Not among the top eight
Crossplane33 of 1590Not among the top eight
Puppet27 of 1590Not among the top eight
Chef24 of 1590Not among the top eight
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named OpenTofu. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 149 of the 159 answers that named OpenTofu and are not a share of its labels.

Domains cited

pulumi.com120
spacelift.io68
guideflow.com60
checkthat.ai50
firefly.ai38
gartsolutions.com35
cio.economictimes.indiatimes.com34
cortex.io34
sentinelone.com34
docs.aws.amazon.com32

505 of the 505 domain citations in answers naming OpenTofu came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Search and answers

opentofu.org is not in Google's top ten for any of the category's searches. In the answers, OpenTofu takes 35% of first choices and Terraform takes 57%.
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In search

Google, US estimates
Position for “infrastructure-as-code tool”
–
not in the top ten
Position for “infrastructure-as-code tools”
–
not in the top ten
Searches for its name, Google
3,600 a month (“opentofu”)
AI search demand for its name, est.
77 a month
Organic visits to its site
about 4,792 a month
Searches its site ranks for
1,014 · 100 in the top three
Sites linking to it
2,613
Paid Google search
No ads found in the estimate; that does not mean it runs none
Ads on Google
None found in Google's ad transparency records for the US

In answers

This edition
Share of first choices
35%
rank 2 of 59 in iac
Segment leader
57%
Terraform
First choices
49 across its categories
Named in
159 answers
Its own site cited
in 149 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

What it publishes

ShowHide
Addresses on opentofu.org
2,900
subdomains included
Content
77
counted in the table below
Documentation
2,782
Product · Integration
0 · 0
KindPagesLast 90 days2025-10 to 2026-09LatestCategories named
Comparison45undated
Blog3222026-09-17

Most recent

How it is countedHide how it is counted

Every page opentofu.org exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. Read September 29, 2026.

Follow OpenTofu

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

OpenTofu is its own company.
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In its own words

Stated by the vendor, not checked
Positioning
Open-Source Infrastructure as Code
For
companies, vendors, and developers using Terraform
Integrations claimed
3900 opentofu.org
Not stated on the pages read
Price, starting price, free plan or trial, certifications, hosting, customers

What OpenTofu's own pages state, read September 28, 2026: opentofu.org. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when OpenTofu's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as OpenTofu, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for OpenTofu by email, built from the raw record of the edition. It shows:

  • where OpenTofu is named, by buyer and by framing, and which cells hold its first choices;
  • the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
  • its vocabulary against the segment leader's, and the pages the models cited;
  • who was chosen in the answers that did not name OpenTofu, and every reason the record gives;
  • a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
  • one page of published figures cleared to show a buyer.
The subscriber app

A verification link goes to your work email; an address at opentofu.org is approved on the spot, any other is reviewed by hand. Your email is never published. Claiming gives no say over labels, shares, verdicts or which quotes appear.

Badges

Wins only: a badge exists where OpenTofu is ranked in a category's top three this edition. Three sizes, one file each, light and dark; the code is under each.
ShowHide

OpenTofu is among the products AI models recommend first in Infrastructure as code this edition. Each badge says so in the buyer's words, names the edition, and links to the standing. The next edition issues a new badge; this one stays true as a record of October 2026.

Wide · 320 × 104 Website, beside other badges
Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index
Show the code
<a href="https://it-ai-index.com/cloud/infrastructure-as-code/"><img src="https://it-ai-index.com/badges/2026-10/opentofu--infrastructure-as-code-wide.svg" alt="Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index" width="320" height="104"></a>

Copy the code as it is. The link is part of the badge: it points at the Infrastructure as code standing, where the claim can be checked.

Square · 240 × 240 LinkedIn, slides
Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index
Show the code
<a href="https://it-ai-index.com/cloud/infrastructure-as-code/"><img src="https://it-ai-index.com/badges/2026-10/opentofu--infrastructure-as-code-square.svg" alt="Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index" width="240" height="240"></a>

Copy the code as it is. The link is part of the badge: it points at the Infrastructure as code standing, where the claim can be checked.

Compact · 200 × 56 Email signature, footer
Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index
Show the code
<a href="https://it-ai-index.com/cloud/infrastructure-as-code/"><img src="https://it-ai-index.com/badges/2026-10/opentofu--infrastructure-as-code-compact.svg" alt="Among AI models' top three in Infrastructure as code, October 2026 Edition, IT AI Recommendation Index" width="200" height="56"></a>

Copy the code as it is. The link is part of the badge: it points at the Infrastructure as code standing, where the claim can be checked.

Badges read on light and dark pages. Alt text carries the claim, the category, the edition and the index, so it stays a citation where the image does not load.