Comparison

Envoy AI Gateway vs TensorZero

No leader: the top candidate Envoy AI Gateway has only 0.28 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Envoy AI Gateway49
TensorZero47
Score
Vioscale score
Envoy AI Gateway49 / 100low · 28%
TensorZero47 / 100low · 21%
Pricing
Free tier
Envoy AI Gateway
TensorZero
Model
Envoy AI Gatewaycommercial
TensorZeroopen_source
Price level
Envoy AI Gatewayfree
TensorZerofree
Integrations
Count
Envoy AI Gateway18
TensorZero3
Adoption
Dependent repos
Envoy AI Gateway0
TensorZero0
Github stars
Envoy AI Gateway1,961
TensorZero11,719
Activity
Commits last 30d
Envoy AI Gateway65
TensorZero
Release
Cadence days
Envoy AI Gateway11
TensorZero6
History
Envoy AI Gateway20 items
TensorZero20 items
License
Spdx
Envoy AI GatewayApache-2.0
TensorZeroApache-2.0
Language
Primary
Envoy AI GatewayGo
TensorZeroRust

Capabilities

Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.

Capabilities
Openai compatible API
Envoy AI Gateway-
TensorZero
Automatic failover
Envoy AI Gateway-
TensorZero-
Routing strategy
Envoy AI Gateway-
TensorZero-
Caching
Envoy AI Gateway-
TensorZero-
Virtual key management
Envoy AI Gateway-
TensorZero
Budget spend controls
Envoy AI Gateway-
TensorZero-
Rate limiting
Envoy AI Gateway-
TensorZero-
Guardrails moderation
Envoy AI Gateway-
TensorZero-
Request cost observability
Envoy AI Gateway-
TensorZero
Streaming support
Envoy AI Gateway-
TensorZero-
Deployment model
Envoy AI Gateway-
TensorZeroSelf hosted
Open source
Envoy AI Gateway-
TensorZero
Pricing model
Envoy AI Gateway-
TensorZeroOpen source self host

What each one is

The product in its own terms, so the numbers below have context.

Envoy AI Gateway

Provides routing and traffic management between applications and generative AI services, built on the open source Envoy Gateway. Supports multiple AI provider integrations and OpenAI-compatible APIs.

Independently observed

TensorZero

A unified operations platform for LLM applications that provides infrastructure for routing API calls, tracking performance metrics, running experiments, and optimizing model and prompt configurations. Built as self-hosted open-source software designed for production-scale deployments.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Envoy AI Gateway

Open sourceFree tier
as of verify ↗

TensorZero

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Envoy AI Gateway
TensorZero
CLI
Envoy AI Gateway
TensorZero
Deployment
Self-hosted
Envoy AI Gateway
TensorZero

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • OpenAI

Envoy AI Gateway

18 total - 17 not shared
  • AWS Bedrock
  • Azure OpenAI
  • Google Vertex AI
  • Google Gemini
  • Anthropic
  • Groq
  • Together AI
  • Mistral
  • Cohere
  • DeepInfra
  • DeepSeek
  • Hunyuan
  • Tencent LLM Knowledge Engine
  • SambaNova
  • Grok
  • OIDC
  • cert-manager
Independently observed

TensorZero

3 total - 2 not shared
  • Ollama
  • Slack
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.