OpenPipe, a fully-managed fine-tuning platform for developers, has raised $6.7M in seed funding led by Costanoa Ventures and Y Combinator to replace GPT-4 with custom-tuned models, offering improved quality, speed, and cost savings. The platform automates data collection, refinement, fine-tuning, evaluations, monitoring, and retraining, empowering users to build their own data flywheel and create a durable competitive advantage. With its easy-to-use interface, OpenPipe allows users to deploy custom-tuned models in under an hour, even with no ML experience, and owners the rights to their model weights, hosting them anywhere. The platform is already being used by companies that have saved over $7M while lowering latency and improving quality.