Forefront.ai is a developer-focused platform in 2026 for fine-tuning, evaluating, and deploying open-source LLMs with full data/model ownership and transparency. It offers a Playground for testing, serverless API inference, built-in data management/inspection tools, and support for models like Phi-2, Mistral-7B, Mixtral-8x7B. With a pay-as-you-go model (starting free with credits), it's ideal for developers, startups, and enterprises seeking control over custom AI without vendor lock-in.