New HHEM and OpenAI chat completions endpoints

Vectara has introduced two new API endpoints to enhance AI development: the Hallucination Evaluation Model (HHEM) and an OpenAI Chat Completions compatible endpoint. The HHEM endpoint aims to improve the trustworthiness of AI-generated content by evaluating the factual consistency of outputs against source material, providing users with a Factual Consistency Score to ensure reliability. Meanwhile, the OpenAI Chat Completions endpoint offers flexible, generation-only capabilities that adhere to widely-used standards, allowing for easy integration and increased modularity in AI workflows. These developments seek to address critical challenges in AI application development, such as ensuring factual accuracy and providing more granular control, thus enhancing the overall trust and flexibility of the Vectara platform for businesses and developers.