Free AI tools built for general contractors. Automate bid leveling, cost analysis, and project documentation using ChatGPT, Claude Code, or Cowork.
A custom GPT for bid leveling. Upload your documents, and Buildlevel will classify line items by UniFormat II, compare scope across bidders, and generate a leveling spreadsheet, all inside ChatGPT.
A Claude Code skill for bid leveling. Produces leveling spreadsheets (CSV/Excel) and PDF reports with scope overlap analysis, contractual term comparison, and scope-aware recommendations.
Buildlevel is a custom GPT on ChatGPT built for bid leveling and cost analysis. Upload your bid PDFs, and it will classify line items by UniFormat II, compare scope across bidders, and produce a leveling spreadsheet. No installation required — just open the link and start a conversation.
Claude Code is a command-line tool and agentic coding assistant from Anthropic. It runs in your terminal, understands your codebase, and can execute tasks like editing files, running commands, and searching code. Buildplus skills extend Claude Code with construction-specific capabilities.
https://code.claude.comCowork is the collaborative mode on claude.ai that lets Claude work on longer tasks in the background. Buildplus skills work in Cowork too, so you can kick off a bid leveling analysis and come back when it is done.
https://claude.aiBoth Buildlevel (ChatGPT) and the bid-leveling skill (Claude Code) analyze construction bid documents, assign line items to UniFormat II headings, and produce leveling spreadsheets. They compare scope overlap between bidders, review contractual terms, and generate scope-aware recommendations to help you choose the right subcontractor.
Both tools can read PDF bid documents and proposals. They produce CSV or Excel spreadsheets for the leveling matrix and PDF reports for the full analysis including scope comparison, term review, and recommendations.
No. Buildlevel is free to use with a ChatGPT account. The Claude Code skill is open source and free to install — you just need a Claude subscription (Pro, Team, or Enterprise). A Buildplus account is only needed if you want to use the Buildplus platform for payments, budgeting, and project management.
Visit the GitHub repository to report issues, request features, or contribute new construction management tools.
https://github.com/build-plus/skills