# Infrastructure as code for small business buyers: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "infrastructure-as-code tool" and as "IaC platform for provisioning cloud resources", six framings each, to fourteen models with search on, on behalf of a small B2B company. Page: https://www.gane.ai/index/it/cloud/infrastructure-as-code/2026-10/smb

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/it/cloud/infrastructure-as-code/smb/index.md

**Standing:** Terraform leads with 55% of first choices; verdict clear leader. 71 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Terraform](https://www.gane.ai/index/it/vendors/terraform/index.md) | 55% | 16% | 87 |
| 2 | [OpenTofu](https://www.gane.ai/index/it/vendors/opentofu/index.md) | 30% | 2% | 57 |
| 3 | [Pulumi](https://www.gane.ai/index/it/vendors/pulumi/index.md) | 11% | 15% | 75 |
| 6 | [AWS CDK](https://www.gane.ai/index/it/vendors/aws-cdk/index.md) | 0% | 14% | 37 |
| 7 | [Ansible](https://www.gane.ai/index/it/vendors/ansible/index.md) | 0% | 27% | 49 |
| 8 | [AWS CloudFormation](https://www.gane.ai/index/it/vendors/aws-cloudformation/index.md) | 0% | 23% | 52 |
| 9 | [Azure Bicep](https://www.gane.ai/index/it/vendors/azure-bicep/index.md) | 0% | 31% | 29 |
| 41 | [Crossplane](https://www.gane.ai/index/it/vendors/crossplane/index.md) | 0% | 45% | 11 |
| 44 | [Puppet](https://www.gane.ai/index/it/vendors/puppet/index.md) | 0% | 67% | 12 |
| 45 | [Chef](https://www.gane.ai/index/it/vendors/chef/index.md) | 0% | 80% | 10 |

Rank is by share of first choices among all 45 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: OpenTofu, Terraform; alternatives Ansible, Pulumi
- GPT-5.4 mini: OpenTofu, Terraform; alternatives AWS CDK, Pulumi
- Gemini 3.5 Flash: Pulumi; alternatives AWS CDK, OpenTofu, SST
- Perplexity Sonar: OpenTofu, Pulumi, Terraform; alternatives Ansible
- Grok 4.20: Terraform; alternatives AWS CloudFormation, Ansible, OpenTofu, Pulumi
- Mistral Small: Terraform; alternatives AWS CloudFormation, Pulumi
- DeepSeek V4 Flash: Terraform; alternatives AWS CDK, AWS CloudFormation, OpenTofu, Pulumi
- Llama 4 Maverick: Terraform; alternatives AWS CDK, AWS CloudFormation
- Qwen 3.7 Flash: Pulumi, Terraform; alternatives AWS CDK, AWS CloudFormation, OpenTofu
- Kimi K2: OpenTofu, Terraform; alternatives AWS CDK, Pulumi
- GLM 4.7 FlashX: Terraform; alternatives AWS CloudFormation, Ansible, Pulumi
- MiniMax M2.5: OpenTofu, Terraform; alternatives Pulumi
- GPT-6 Luna: Terraform using HCP Terraform's Free plan; alternatives AWS CDK, OpenTofu, Pulumi
- Muse Glimmer 30B: OpenTofu, Terraform; alternatives AWS CDK, AWS CloudFormation, Ansible, Pulumi

## Sources the answers cite

73 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- pulumi.com: 53 answers, 104 citations
- guideflow.com: 39 answers, 39 citations
- spacelift.io: 28 answers, 39 citations
- checkthat.ai: 26 answers, 27 citations
- docs.aws.amazon.com: 23 answers, 25 citations
- gartsolutions.com: 21 answers, 22 citations
- openxcell.com: 19 answers, 20 citations
- devopsschool.com: 18 answers, 18 citations

Pages named in the most answers:

- https://guideflow.com/blog/infrastructure-as-code-tools (39 answers)
- https://pulumi.com/blog/infrastructure-as-code-tools (33 answers)
- https://checkthat.ai/answers/what-are-the-best-infrastructure-as-code-tools (24 answers)
- https://gartsolutions.com/infrastructure-as-code-tools (21 answers)
- https://openxcell.com/blog/infrastructure-as-code-tools (19 answers)
- https://devopsschool.com/blog/top-10-infrastructure-as-code-iac-tools-features-pros-cons-comparison (18 answers)
- https://cortex.io/post/best-infrastructure-as-code-iac-tools (17 answers)
- https://spacelift.io/blog/infrastructure-as-code-tools (16 answers)
- https://pulumi.com/docs/iac/comparisons/terraform (15 answers)
- https://computingforgeeks.com/best-infrastructure-as-code-iac-cloud-automation-tools (14 answers)

## Warned against

- AWS CloudFormation: 12 of 52 labels negative. "small businesses should generally avoid or be cautious about the following... Cloud-Native IaC Tools (AWS CloudFormation...)" (Mistral Small, negative prompt)
- Terraform: 14 of 87 labels negative. "What to Avoid - Terraform Cloud/Enterprise: While the CLI is free, managed services start adding up quickly" (Kimi K2, budget prompt)
- Azure Bicep: 9 of 29 labels negative. "tightly coupled to a single cloud provider and can limit flexibility" (Mistral Small, negative prompt)
- Pulumi: 11 of 75 labels negative. "Pulumi presents a learning curve for traditional ops teams, a smaller ecosystem than Terraform/OpenTofu, a risk of over-engineering infrastructure, and can be overkill for simple deployments." (Claude Haiku 4.5, negative prompt)

## Movement since September 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Terraform at 57%.

- Terraform: 50% to 57%, +7. Inside the floor by 4 points · rank 1 of 41, unchanged.
- OpenTofu: 33% to 28%, −5. Inside the floor by 6 points · rank 2 of 41, unchanged.
- Pulumi: 8% to 11%, +3. Inside the floor by 8 points · rank 3 of 41, unchanged.
- AWS CDK: 2% to 0%, −2. Inside the floor by 9 points · rank 4 → 6 of 41.
- Crossplane: 2% to 0%, −2. Inside the floor by 9 points · rank 6 → 38 of 41.
- Ansible: 0% to 0%, ±0. Inside the floor by 11 points · rank 9 → 5 of 41.
- AWS CloudFormation: 0% to 0%, ±0. Inside the floor by 11 points · rank 10 → 7 of 41.
- Azure Bicep: 0% to 0%, ±0. Inside the floor by 11 points · rank 11 → 8 of 41.
- Puppet: 0% to 0%, ±0. Inside the floor by 11 points · rank 39 → 40 of 41.
- Chef: 0% to 0%, ±0. Inside the floor by 11 points · rank 38 → 41 of 41.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, October 2026 Edition, www.gane.ai/index/it.