AIaC by Firefly

AIaC (Artificial Intelligence Infrastructure-as-Code) is an open-source command-line utility published by Firefly, the company behind cloud infrastructure management tooling. Its purpose is narrow and practical: remove the friction of writing infrastructure definitions by hand. You type a request such as a description of an S3 bucket with versioning and lifecycle rules, and AIaC asks a large language model to produce the corresponding Terraform, Pulumi, CloudFormation, Kubernetes or other supported template directly in your terminal, ready to be reviewed and committed.

The tool is distributed through GitHub under the gofireflyio organisation and installs as a single binary, so it fits naturally into scripts, CI pipelines and local development. It supports multiple model providers and lets you keep API keys in environment variables, which matters for teams that already have an approved LLM vendor. Because output is generated configuration rather than live infrastructure, AIaC acts as a fast first draft that a human engineer still validates before applying it.

AIaC is free to use and does not require an account on the project itself, although you pay your chosen AI provider for tokens. In practice it appeals to platform engineers, DevOps practitioners and developers who know what they want the cloud to look like but would rather describe it than hand-write every block of HCL or YAML.