The Best LLM Gateway Alternatives in 2026

LiteLLM provides an AI gateway and LLM proxy with model routing, usage tracking, spend controls, and support for many providers.

Bifrost by Maxim AI is an open-source AI gateway for LLMs, MCP and agents with routing, governance, guardrails and observability, supporting 8+ providers and 1000+ models via a drop-in SDK replacement.

Flaq offers one API for accessing AI image, video, 3D, music, and language models.

Respan unifies LLM observability, evals, prompt optimization, and an AI gateway so teams can ship reliable AI applications.

Glide provides an open model gateway for developing production generative AI applications.

TensorZero builds open-source tools for production-grade LLM applications: LLM gateway, observability, optimization, evaluations, and experimentation.

Ollama runs language models locally and provides tools to work with model files and APIs.

Featherless is a serverless AI inference platform for open-weight models with API access to tens of thousands of models.

The abso TypeScript SDK calls more than 100 LLM providers through an OpenAI compatible format.

Confident AI provides evaluation, observability, red-teaming, and governance tools for testing and monitoring AI systems.

Comet's Opik platform provides AI observability, agent testing, evaluation, and monitoring for developers.

Monkt converts PDFs, Word, PowerPoint, Excel, CSV, webpages, and HTML into Markdown or structured JSON.

PromptLayer supports prompt versioning, LLM evaluations, and production monitoring with traces, logs, and regression sets.

Hugging Face Text Embeddings Inference serves text embedding models through an inference solution.

Guardrails AI provides a framework for building, governing, and deploying reliability controls for generative AI systems.

Deepchecks evaluates and monitors AI agents using testing, tracing, dataset scoring, and production observability tools.

Stakpak runs an agent on a machine to ship code and keep applications running.

OpenModelZ scales LLM inference on Kubernetes with engines including vLLM, SGLang, and LMDeploy.

MakeHub routes AI model requests among providers such as OpenAI, Anthropic, and Together.ai.

Eden AI routes requests across language and other AI models through a unified API with provider options.

ClearML provides AI infrastructure for managing GPU clusters, machine learning workflows, and model deployment.

Orq.ai provides an enterprise AI gateway with access to hundreds of models, guardrails, cost limits, and audit trails.

Cortex provides cloud infrastructure for deploying, managing, and scaling machine learning models in production.

Omnifact provides team access to multiple AI models and pseudonymizes personal data before sending prompts to providers.