Respan unifies LLM observability, evals, prompt optimization, and an AI gateway so teams can ship reliable AI applications.
TensorZero vs LLM Gateway
How do TensorZero and LLM Gateway compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | TensorZero | LLM Gateway |
|---|---|---|
| What it is | TensorZero builds open-source tools for production-grade LLM applications: LLM gateway, observability, optimization, evaluations, and experimentation. | LLM Gateway routes, manages, and analyzes requests across more than 40 language-model providers through one API. |
| Website | ||
| Type | Website | Online tool |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both TensorZero and LLM Gateway.
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.
Glide provides an open model gateway for developing production generative AI applications.
LiteLLM provides an AI gateway and LLM proxy with model routing, usage tracking, spend controls, and support for many providers.
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.






