ZenMux: Unified LLM gateway with failover and analytics, but offers less robust open-source developer SDK support. LiteLLM records 576,967 monthly visits with +7.9% month-over-month growth and Freemium, Contact for Pricing pricing. ZenMux records 444,394 monthly visits with +16.7% growth and Freemium, Paid pricing.
One open-source AI gateway for 100+ LLM providers
One unified API for 100+ AI models, with insurance when output disappoints
| Dimension / Metric | | |
|---|---|---|
| Official Domain | litellm.ai | zenmux.ai |
| Pricing Model | Freemium, Contact for Pricing | Freemium, Paid |
| Monthly Visits | 576.97K (576,967) | 444.39K (444,394) |
| MoM Traffic Delta | +42.48K (+7.9%) | +63.49K (+16.7%) |
| Primary Market & Share | 🇺🇸 United States (27.9%) | 🇨🇳 China (20.6%) |
| Direct Visits / mo | 228.97K | 233.28K |
| User Rating | 4.8 | 4.4 |
| Supported Platforms | Website | Website |
One open-source AI gateway for 100+ LLM providers
Call 100+ providers and 1,800+ models using one request format, so you can swap models without changing application code.
Issue scoped keys per team, project or app, set monthly spend caps and see exactly who is driving usage and cost.
Distribute traffic across deployments, retry on failure and automatically fall back to another model or provider when one goes down.
Dashboards for request volume, tokens and cost per model, with support for logging and analytics integrations.
One unified API for 100+ AI models, with insurance when output disappoints
Access Claude, GPT, Gemini, Grok, DeepSeek, Qwen and more from a single endpoint, sourced from official providers or authorized cloud partners — no proxies and no degraded copies.
Hallucinated output, excessive latency and low throughput are automatically compensated, and each compensated case is anonymized and returned to you as a bad-case sample.
Enable ZenMux Auto and the system analyses each prompt to pick the model that delivers the best quality at the lowest cost, balancing the quality/price trade-off for you.
Multi-provider failover with capacity reserves keeps applications running when a channel rate-limits or fails, while Cloudflare edge acceleration reduces latency worldwide.
Offers a similar multi-model API gateway with broad frontier model support, but features a more established developer ecosystem.
Offers a similar multi-model API gateway with broad frontier model support, but features a more established developer ecosystem.
SpecialistHosts high-performance open-weight models directly on dedicated serverless infrastructure, but does not route across external providers.
SpecialistHosts high-performance open-weight models directly on dedicated serverless infrastructure, but does not route across external providers.
Delivers OpenAI-compatible routing with automatic failover and budget governance, closely mirroring ZenMux's core traffic management features.
Delivers OpenAI-compatible routing with automatic failover and budget governance, closely mirroring ZenMux's core traffic management features.
One OpenAI-compatible API key for 500+ AI models
One OpenAI-compatible API key for 500+ AI models
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models
Aggregates hundreds of frontier LLMs under one OpenAI-compatible endpoint with automatic failover, matching ZenMux's utility.
One universal API for 500+ AI models and 1,000+ agentic tools
SpecialistFocuses heavily on enterprise-grade LLM observability, caching, and guardrails alongside multi-model routing capabilities.
SpecialistFocuses heavily on enterprise-grade LLM observability, caching, and guardrails alongside multi-model routing capabilities.
One API gateway and LLM router for around 1,000 AI models
Free / Open-sourceAn open-source API gateway providing customizable routing and automatic failover for self-hosted LLM infrastructure.
Free / Open-sourceAn open-source API gateway providing customizable routing and automatic failover for self-hosted LLM infrastructure.
Free / Open-sourceOpen-source request routing with built-in evaluations, but has a smaller community and fewer pre-built provider connectors.
Free / Open-sourceOpen-source request routing with built-in evaluations, but has a smaller community and fewer pre-built provider connectors.
SpecialistExcels at request caching, monitoring, and cost analytics, but functions primarily as a proxy monitor rather than a router.
SpecialistExcels at request caching, monitoring, and cost analytics, but functions primarily as a proxy monitor rather than a router.
