Show HN: OpenTab – a lazygit-style TUI for your AI token spend (github.com)

OpenTab, a new terminal user interface (TUI) tool, has been introduced to help AI developers track and analyze their token spending across various coding tools. By leveraging existing records stored in platforms like OpenCode, Claude Code, Codex, and GitHub Copilot, OpenTab offers users a read-only interface to visualize their expenditures based on multiple metrics, such as month, day, project, and model. The tool stands out with features like interactive cost breakdowns, visual trends, and the ability to merge data from different sources, all without needing a backend or storing any personal data. This innovation is significant for the AI/ML community as it fills a critical gap in understanding the financial implications of using complex AI tools, particularly as costs can quickly escalate with extensive usage. OpenTab allows developers to make informed decisions about their AI tool subscriptions by providing transparent insights into where tokens are spent and potential cost savings opportunities. Its straightforward setup using standard Python libraries ensures accessibility, making it easy for users to install and operate in various environments, including restricted systems. Ultimately, OpenTab empowers developers with the financial clarity needed to optimize their use of AI technology.