Show HN: LLMWise – Compare, Blend, and Judge LLM Outputs from One API (llmwise.ai)

LLMWise has launched a new API that allows users to compare, blend, and evaluate outputs from multiple large language models (LLMs) such as GPT, Claude, and Gemini—all in a single call. Users can run a prompt simultaneously across different models, select the best responses, and even have AI determine which output is superior. This initiative is significant for the AI/ML community as it streamlines the modeling process, reducing the complexity of managing multiple API subscriptions while providing a versatile platform for benchmarking LLM performance. The LLMWise API incorporates advanced reliability features like failover routing, circuit breakers, and health checks, ensuring robust performance during model comparisons. It supports 36 models from 16 different providers, allowing for flexible integration through familiar role/content formats and an official SDK for Python and TypeScript. The system also includes a unique cost-saving feature that routes simpler prompts to lower-cost models, optimizing spending. With an initial offering of 40 free credits and a straightforward pay-per-use credit system, LLMWise makes it easier for developers and researchers to experiment with multiple models, enhancing both accessibility and efficiency in AI development.