AssemblyAI LLM Gateway vs. OpenRouter vs. LLM Gateway.io: Pricing, security, and reliability compared

In a comprehensive comparison of LLM gateways, AssemblyAI's LLM Gateway, OpenRouter, and LLM Gateway.io are evaluated based on pricing, reliability, security, and developer experience, providing insights into which option best suits different AI workloads. AssemblyAI's LLM Gateway is designed for voice AI applications, offering integrated features like speech-native context preservation and unified billing with transcription services, making it ideal for teams already using AssemblyAI for transcription or developing voice agents. OpenRouter, with its wide selection of over 300 models, serves general-purpose LLM applications and those who value model selection, though it comes with a small markup on provider rates. LLM Gateway.io offers maximum customization through an open-source, self-hosted setup suitable for teams needing strict deployment control and custom routing logic. Each gateway offers unique strengths, with AssemblyAI standing out for audio-specific workloads and compliance, OpenRouter for model diversity, and LLM Gateway.io for customization and control.