Index › Cloud and infrastructure › IaC › Enterprise › September 2026 Edition

Infrastructure as code for enterprise buyers

Asked as “infrastructure-as-code tool”, and as “IaC platform for provisioning cloud resources”, on behalf of an enterprise B2B company. 57 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.

Standing

Terraform

Clear leader

58% of first choices, clear leader.

ShowinginAll 67 categories in the September 2026 Edition →

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

Small business

Terraform50%Clear leaderStanding →Mid-market

Terraform46%Clear leaderStanding →Enterprise

Terraform58%Clear leaderThis page

01The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for an enterprise B2B company. Ordered by share.

ProductFirst-choice shareNegative rateLabelsQuadrant

Terraform24%74endorsed leader

OpenTofu2%44accepted challenger

Pulumi17%65accepted challenger

Spacelift0%26accepted challenger

env00%13accepted challenger

Puppet62%13criticized challenger

Show the eight products at 0%, ordered by negative rate

Chef67%12criticized challenger

Azure Resource Manager templates42%12criticized challenger

Ansible38%24criticized challenger

AWS CloudFormation27%44criticized challenger

Azure Bicep27%15criticized challenger

Crossplane0%26accepted challenger

AWS CDK0%18accepted challenger

Scalr0%12accepted challenger

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

Head to head

Terraform vs OpenTofu Terraform vs Pulumi OpenTofu vs Pulumi

One product takes 58% of first choices here, so the chart would put thirteen markers in one corner and one at the far edge. The two measurements it plots are columns in the standing above: share, and the negative label rate. Six products carry a negative rate above 25% in this category. Jump to the standing

02What they warned about

Six of twelve models held their first choice under the paraphrase. GPT-5.4 mini, Gemini 3.5 Flash, Mistral Small, Llama 4 Maverick, Qwen 3.7 Flash and Kimi K2 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.

AWS CloudFormation

27%

12 of 44 labels negative · 10 of 12 models · 4 hard negative

“Tools to **Avoid or Be Highly Cautious About**: **CloudFormation (AWS-native)**: ... Severe vendor lock-in to AWS” Grok 4.1 Fast, negative prompt

Terraform

24%

18 of 74 labels negative · 10 of 12 models · 4 hard negative

“Terraform's 2023 licensing change to BUSL-1.1 (no longer open source) and inherent limitations with domain-specific languages create challenges” Claude Haiku 4.5, negative prompt

Pulumi

17%

11 of 65 labels negative · 9 of 12 models

“reliance on their hosted state backend introduces a different kind of lock-in ... Pulumi remains a strong choice if implemented correctly with self-managed backends.” Qwen 3.7 Flash, negative prompt

Chef

67%

8 of 12 labels negative · 8 of 12 models · 5 hard negative

“Configuration Management Tools Used *for* Provisioning (e.g., Ansible, Puppet, Chef)... is an anti-pattern.” Gemini 3.5 Flash, negative prompt

03What they cite

Citations exist only for the models that return a source list: twelve of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

59 of 72 answers in this category came back with a source list, from 12 of 12 models: citations where the model returns them, or the search results it consulted. 5 of those lists are Google grounding redirects that name no site and are left out of the counts. 961 links across 278 sites, every framing counted. Ranked by the number of answers carrying the site or page.

pulumi.com

vendor site · Pulumi35 answers · 73 citations · 10 models

apiiro.com

31 answers · 31 citations · 9 models

spacelift.io

vendor site · Spacelift27 answers · 48 citations · 10 models

guideflow.com

vendor site · Guideflow25 answers · 25 citations · 9 models

firefly.ai

20 answers · 24 citations · 7 models

cortex.io

vendor site · Cortex17 answers · 17 citations · 8 models

checkthat.ai

16 answers · 18 citations · 8 models

hashicorp.com

vendor site · HashiCorp15 answers · 28 citations · 6 models

docs.aws.amazon.com

vendor site · Amazon14 answers · 25 citations · 8 models

developer.hashicorp.com

vendor site · HashiCorp12 answers · 16 citations · 6 models

facets.cloud

12 answers · 13 citations · 9 models

computingforgeeks.com

12 answers · 12 citations · 6 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

apiiro.com/blog/best-iac-tools

31 answers · 9 models

pulumi.com/blog/infrastructure-as-code-tools

28 answers · 9 models

guideflow.com/blog/infrastructure-as-code-tools

25 answers · 9 models

cortex.io/post/best-infrastructure-as-code-iac-tools

17 answers · 8 models

spacelift.io/blog/infrastructure-as-code-tools

15 answers · 7 models

checkthat.ai/answers/what-are-the-best-infrastructure-as-code-tools

13 answers · 7 models

computingforgeeks.com/best-infrastructure-as-code-iac-cloud-automation-tools

12 answers · 6 models

cio.economictimes.indiatimes.com/tools/best-iac-tools/126145308

11 answers · 6 models

facets.cloud/blog/top-8-infrastructure-as-code-iac-tools

10 answers · 8 models

devopstraininginstitute.com/blog/12-infrastructure-as-code-tools-ranked-for…

9 answers · 5 models

04How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.

ModelDirect“What is the best infrastructure-as-code tool for an enterprise B2B company?”Paraphrase“Which IaC platform for provisioning cloud resources would you recommend to a large B2B company with thousands of employees?”Comparative“What are the top enterprise-grade infrastructure-as-code tools and how do they differ?”Budget-constrained“What is the best infrastructure-as-code tool for a large company that needs predictable total cost across thousands of users?”Scale-constrained“We are a 5,000 person company with SSO, SOC 2 and procurement review requirements evaluating an infrastructure-as-code tool. What should we look at?”Negative“Which infrastructure-as-code tools should a large enterprise avoid or be cautious about?”

Claude Haiku 4.5Terraform

Two alternatives

AWS CloudFormation, Pulumi

TerraformHeld

Three alternatives

AWS CloudFormation, Ansible, Pulumi

Pulumi, Terraform

Three alternatives

Ansible, OpenTofu, Spacelift

against: AWS CloudFormationSpacelift

Three alternatives

AWS CDK, AWS CloudFormation, env0

against: Terraformno first choiceagainst: Ansible, Chef, Puppet, SaltStack, Terraform

GPT-5.4 miniTerraform/OpenTofu

Three alternatives

AWS CDK, AWS CloudFormation, Pulumi

TerraformChanged

Three alternatives

AWS CDK, Azure Bicep, Crossplane

Terraform

Five alternatives

AWS CloudFormation, Ansible, Azure Bicep, OpenTofu, Pulumi

Terraform

One alternative

AWS CloudFormation

against: Pulumino first choicenothing named

Gemini 3.5 FlashOpenTofu, Pulumi

Two alternatives

Crossplane, Terraform

OpenTofuChanged

Four alternatives

Crossplane, Pulumi, Spacelift, env0

against: TerraformTerraform

Four alternatives

Crossplane, OpenTofu, Pulumi, Red Hat Ansible Automation Platform

OpenTofu

Three alternatives

Atlantis, Scalr, Spacelift

against: Pulumi, Terraformno first choiceagainst: AWS CloudFormation, Ansible, Azure Bicep, CDK for Terraform, Chef, Google Cloud Deployment Manager, Pulumi, Puppet, Terraform

Perplexity SonarTerraform

Four alternatives

AWS CDK, AWS CloudFormation, OpenTofu, Pulumi

TerraformHeld

Five alternatives

AWS CloudFormation, Azure Bicep, Crossplane, OpenTofu, Pulumi

Terraform

Five alternatives

AWS CloudFormation, Azure Resource Manager / Bicep, OpenTofu, Pulumi, Spacelift

against: AnsibleOpenTofu

Two alternatives

Infracost, Terraform

OpenTofu, Pulumi, Terraform

Three alternatives

AWS CDK, AWS CloudFormation, Spacelift

against: Ansible, Chef, Puppet, SaltStack, Vagrant

Grok 4.1 FastTerraform

Four alternatives

AWS CDK, Crossplane, OpenTofu, Pulumi

TerraformHeld

Two alternatives

OpenTofu, Pulumi

against: AWS CloudFormation / CDK, Azure ARM/BicepTerraform

Four alternatives

Ansible, Crossplane, OpenTofu, Pulumi

OpenTofu, Terraform

Five alternatives

AWS CDK, AWS CloudFormation, GitHub Actions, Infracost, env0

against: Pulumi, TerraformPulumi, Terraform

One alternative

AWS CDK

against: OpenTofuagainst: AWS CloudFormation, Ansible, Azure Resource Manager templates, Google Cloud Deployment Manager, Pulumi, Terraform

Mistral SmallOpenTofu, Terraform

Three alternatives

AWS CDK, Crossplane, Pulumi

TerraformChanged

Four alternatives

AWS CloudFormation, Azure Resource Manager templates, Google Cloud Deployment Manager, Pulumi

Pulumi, Terraform

Three alternatives

AWS CloudFormation, Ansible, Crossplane

Terraform

Two alternatives

OpenTofu, Pulumi

Terraform

Four alternatives

AWS CDK, Azure Bicep, Crossplane, Pulumi

against: Google Cloud Deployment Manageragainst: AWS CloudFormation, Ansible, Azure Resource Manager templates, Chef, Pulumi, Puppet, Terraform

DeepSeek V4 FlashTerraform

Three alternatives

AWS CloudFormation, OpenTofu, Pulumi

TerraformHeld

One alternative

Pulumi

against: Bicep/ARM, CloudFormation / AWS CDKPulumi, Terraform

Four alternatives

AWS CDK, AWS CloudFormation, Ansible, OpenTofu

env0

Two alternatives

Pulumi, Spacelift

against: TerraformPulumi, Terraformagainst: AWS CloudFormation, Ansible, Chef, Pulumi, Puppet, Terraform

Llama 4 MaverickPuppetTerraformChanged

Three alternatives

AWS CloudFormation, Crossplane, Pulumi

no first choicePulumi, Spacelift, Terraformno first choiceagainst: AWS CloudFormation, Azure Bicep, Azure Resource Manager templates, Terraform

Qwen 3.7 FlashTerraform

Two alternatives

AWS CloudFormation, Pulumi

OpenTofu, TerraformChanged

Three alternatives

Crossplane, Pulumi, Spacelift

Terraform

Seven alternatives

AWS CDK, AWS CloudFormation, Ansible, Azure Bicep, Azure Resource Manager templates, OpenTofu, Pulumi

Spacelift

Two alternatives

OpenTofu, Pulumi

against: TerraformTerraform

Three alternatives

Crossplane, Spacelift, env0

against: AWS CloudFormation, Azure Bicep, Azure Resource Manager templates, Chef, Google Cloud Deployment Manager, Pulumi, Puppet, Terraform

Kimi K2OpenTofu, Terraform

One alternative

Pulumi

against: CloudFormation / AWS CDKTerraformChanged

Four alternatives

AWS CDK, Crossplane, OpenTofu, Pulumi

OpenTofu, Terraform

Four alternatives

AWS CDK, Ansible, Crossplane, Pulumi

OpenTofu, Spacelift

One alternative

AWS CloudFormation / CDK

against: Pulumi, TerraformTerraform

Four alternatives

OpenTofu, Pulumi, Scalr, Spacelift

against: AWS CloudFormation, Azure Bicep, Google Config Connectoragainst: AWS CloudFormation, Azure ARM/Bicep, Chef, Google Cloud Deployment Manager, Puppet, SaltStack

GLM 4.7 FlashXTerraform

Two alternatives

AWS CloudFormation, Pulumi

TerraformHeld

Three alternatives

AWS CloudFormation, OpenTofu, Pulumi

OpenTofu, Terraform

Six alternatives

AWS CloudFormation, Ansible, Azure Bicep, Crossplane, Pulumi, Spacelift

Terraform

One alternative

OpenTofu

against: AWS CloudFormation, PulumiTerraform

Two alternatives

Crossplane, Pulumi

against: AWS CloudFormation, Ansible, Generic Bash Scripts, Terraform

MiniMax M2.5Terraform

Two alternatives

AWS CloudFormation, Pulumi

TerraformHeld

Four alternatives

AWS CloudFormation, Azure Resource Manager templates, Crossplane, Pulumi

Terraform

Five alternatives

AWS CloudFormation, Ansible, Azure Resource Manager (ARM)/Bicep, OpenTofu, Pulumi

Pulumi

One alternative

AWS CloudFormation

against: TerraformPulumi, Terraform

One alternative

AWS CloudFormation

against: AWS CloudFormation, Ansible, Azure Resource Manager templates, Chef, Google Cloud Deployment Manager, OpenStack Heat, Pulumi, Puppet, SaltStack

Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record

Seventy-two rows: every prompt, every model, every answer.

Prompt	Model	Version string	Time (UTC)	Searched	Sources	Latency
Direct recommendation	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 11:46	no	0	5 s
Direct recommendation	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 10:54	yes	1	6 s
Direct recommendation	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 13:57	yes	13	21 s
Direct recommendation	Perplexity Sonar	`sonar`	2026-09-17 12:01	yes	20	6 s
Direct recommendation	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 11:57	yes	19	13 s
Direct recommendation	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 11:40	yes	13	11 s
Direct recommendation	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 12:03	yes	9	13 s
Direct recommendation	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 11:59	yes	5	2 s
Direct recommendation	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 10:27	no	0	32 s
Direct recommendation	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 11:02	yes	15	48 s
Direct recommendation	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 11:58	yes	19	111 s
Direct recommendation	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 09:54	yes	13	28 s
Paraphrase	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 10:33	no	0	5 s
Paraphrase	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 12:21	no	0	5 s
Paraphrase	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 10:06	yes	9	23 s
Paraphrase	Perplexity Sonar	`sonar`	2026-09-17 11:17	yes	18	6 s
Paraphrase	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 11:27	yes	20	11 s
Paraphrase	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 13:49	no	0	3 s
Paraphrase	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 11:28	yes	19	16 s
Paraphrase	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 11:54	yes	5	3 s
Paraphrase	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 13:56	yes	14	52 s
Paraphrase	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 13:23	no	0	55 s
Paraphrase	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 10:29	yes	30	96 s
Paraphrase	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 12:24	yes	10	32 s
Comparative	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 11:32	yes	18	11 s
Comparative	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 10:04	yes	4	8 s
Comparative	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 11:50	yes	10	25 s
Comparative	Perplexity Sonar	`sonar`	2026-09-17 10:41	yes	20	7 s
Comparative	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 12:57	yes	25	16 s
Comparative	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 10:34	yes	9	10 s
Comparative	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 10:17	yes	10	17 s
Comparative	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 13:11	yes	5	3 s
Comparative	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 12:26	no	0	41 s
Comparative	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 13:03	yes	8	55 s
Comparative	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 12:09	yes	20	95 s
Comparative	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 10:06	yes	5	20 s
Budget constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 11:45	yes	17	9 s
Budget constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 10:31	yes	3	5 s
Budget constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 10:45	yes	14	29 s
Budget constrained	Perplexity Sonar	`sonar`	2026-09-17 13:03	yes	20	6 s
Budget constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 09:55	yes	44	19 s
Budget constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 10:09	yes	5	4 s
Budget constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 13:37	yes	18	22 s
Budget constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 09:39	yes	5	2 s
Budget constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 13:12	yes	15	114 s
Budget constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 10:27	yes	24	66 s
Budget constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 10:57	yes	22	45 s
Budget constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 11:46	yes	23	61 s
Scale constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 12:12	no	0	7 s
Scale constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 09:48	no	0	6 s
Scale constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 14:12	no	0	18 s
Scale constrained	Perplexity Sonar	`sonar`	2026-09-17 10:05	yes	20	8 s
Scale constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 12:11	yes	47	20 s
Scale constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 11:44	no	0	10 s
Scale constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 12:12	yes	25	32 s
Scale constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 14:08	yes	5	4 s
Scale constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 12:20	yes	5	27 s
Scale constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 11:17	yes	25	74 s
Scale constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 13:13	yes	40	68 s
Scale constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 14:11	yes	15	43 s
Negative framing	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 12:24	yes	38	14 s
Negative framing	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 11:36	no	0	5 s
Negative framing	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 12:49	yes	13	24 s
Negative framing	Perplexity Sonar	`sonar`	2026-09-17 12:54	yes	20	5 s
Negative framing	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 11:27	yes	42	17 s
Negative framing	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 11:08	yes	8	7 s
Negative framing	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 12:51	yes	30	36 s
Negative framing	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 14:08	yes	5	4 s
Negative framing	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 12:01	yes	44	82 s
Negative framing	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 09:41	yes	14	55 s
Negative framing	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 12:31	yes	28	87 s
Negative framing	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 12:18	no	0	72 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

Category-scoped readings

AZURE Resource Manager read as Azure Resource Manager templates

Argo read as Argo CD

Azure Resource Manager read as Azure Resource Manager templates

Unresolved, counted raw

Azure Deployment Environments

Backstage

Digger

Facets

Firefly

Generic Bash Scripts

Google Cloud Deployment Manager / Infrastructure Manager

Google Config Connector

Infros

Kubernetes manifests + Helm

OpenStack Heat

Quali

TFLint

Upbound

hoop.dev

Discontinued, still offered

No shut-down product was recommended here.

Infrastructure as code for enterprise buyers

By buyer segment

01The standing

02What they warned about

03What they cite

Sites the answers cite

Pages the answers cite

04How they answered

05The record

Normalization in this category

Also in cloud and infrastructure