Best AI Gateways Software

Adam Crivello
AC
Researched and written by Adam Crivello

AI gateway solutions serve as intelligent middleware deployed between custom-built enterprise applications and the underlying large language models (LLM) and artificial intelligence (AI) agents they rely on. Rather than coding application programming interface (API) keys and logic for specific providers directly into applications, development teams can route all model requests through the AI gateway. This centralized control plane standardizes API interactions and handles the heavy lifting of enterprise AI infrastructure.

AI gateways provide development teams with unified controls for multi-LLM routing, automatic failover, semantic caching, token-based rate limiting, and exact cost tracking. By abstracting the underlying AI models from application logic, AI gateways ensure high availability, optimize inference costs, and enforce strict API governance. This also prevents "shadow AI": the use of unauthorized models and unmonitored API keys hidden within application code.

Many existing API management platforms have extended their functionality to include AI gateway solutions. AI gateways are also closely related to LLMOps platforms, which handle the broader end-to-end lifecycle of building, fine-tuning, and evaluating models. However, while LLMOps focuses heavily on model development, AI gateways focus strictly on runtime API consumption and governance.

Additionally, buyers looking to secure employee web interactions with public AI chatbots rather than developer-driven application traffic should explore the AI security posture management (AI-SPM) category.

To qualify for inclusion in the AI Gateways category, a product must:

Act as an API proxy or middleware layer specifically between custom client applications (or agents) and external AI models
Provide multi-model routing and load balancing, allowing developers to switch or fallback between different LLM providers via a single unified API
Offer user-level rate limiting to manage API quotas and prevent system overloads
Include detailed observability and FinOps tracking specifically for AI workloads
Support performance optimization features for generative AI, such as semantic caching, to reduce redundant API calls and latency
Centralize AI API key management and authentication
Show More
Show Less

G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our scoring methodologies.

0 Listings in AI Gateways Available