TensorZero vs TrueFoundry AI Gateway
TensorZero
tensorzero.comTrueFoundry AI Gateway
truefoundry.comSide by side
| Figure | TensorZero | TrueFoundry AI Gateway |
|---|---|---|
| Price from | Free | $25/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 9 |
| Spec score · LLM gateways | 8.6 (#7) | 8.9 (#6) |
| Spec score · LLM Gateway Software | 8.0 (#13) | 8.7 (#7) |
| Spec score · Byok System | 7.9 (#15) | 8.6 (#4) |
| Company | The FAQ describes the team as based in New York City and names Viraj Mehta and Gabriel Bianconi as its founders. | TrueFoundry lists its address as Ensemble Labs Inc, 355 Bryant Street, Suite 403, San Francisco, California 94107. |
| Deployment | The gateway can be deployed with Docker, Docker Compose, Kubernetes using a reference Helm chart, or built from source with Cargo. | The gateway supports SaaS and, for Enterprise, VPC, on-premises and air-gapped deployment options. |
| Observability | TensorZero can store inference and feedback data for observability, optimization, evaluations, and experimentation in Postgres or ClickHouse. | Monitoring covers requests, tokens, cost, latency percentiles, time to first token, inter-token latency and request-level traces. |
| Privacy | The gateway documentation says its pseudonymous usage analytics do not include application data or inference inputs and outputs, and can be disabled. | TrueFoundry says that when deployed in VPC, on-premises or air-gapped environments, sensitive data can remain within enterprise boundaries. |
| Support | The project README directs users to Slack or Discord and offers work teams a Slack or Teams channel by email. | The listed support options are an in-app chatbot and Discord for Developer, a support portal for Pro, and priority support, SLA and a dedicated Slack channel for Enterprise. |
Plans
TrueFoundry AI Gateway
- DeveloperFree
- DeveloperFree
- Pro$25 a month
- Pro$499 a month
- Pro Plus$2,999 a month
- TrueFoundry Pro (AWS Marketplace)$6,250 a month
- TrueFoundry Enterprise (AWS Marketplace)$12,500 a month
- TrueFoundry On-Prem (AWS Marketplace)$16,666.66 a month
- EnterprisePriced on request
In their own words
TensorZero
TensorZero is a free, open-source stack that brings together an LLM gateway, observability, optimization, evaluation, and experimentation. Its gateway provides a unified API for model providers and supports routing, retries, fallbacks, prompt templates, schemas, multi-step workflows, and traffic routing for A/B tests. Documented integrations include Anthropic, AWS Bedrock, Azure, Google, OpenAI, OpenRouter, Together AI, vLLM, xAI, and OpenAI-compatible endpoints. Inference and feedback data go to the database you configure, where they can be queried with SQL; feedback can be tied to individual inferences or episodes. The gateway and UI can run through Docker, Docker Compose, Kubernetes and Helm, or a source build. API key authentication is available for gateway endpoints other than status and health checks. The project is available on GitHub, but is no longer maintained; its repository is archived and read-only. TensorZero is self-hosted and licensed under Apache 2.0. It collects pseudonymous aggregate usage analytics, excluding application data and inference inputs and outputs, with an option to disable collection.
TrueFoundry AI Gateway
TrueFoundry AI Gateway sits between applications and model providers to manage model access, routing, governance, observability, security, and cost controls. Its unified API supports chat, completion, embedding, and reranking models. TrueFoundry says the gateway connects to more than 1,000 LLMs across more than 35 platforms, including OpenAI, AWS Bedrock, Google Vertex AI, Azure OpenAI, and Anthropic. Routing options include latency-based selection, weighted load balancing, and automatic fallbacks. The service tracks token usage, latency, errors, and request volumes, and supports centrally stored request and response logs. Teams can set rate limits and cost or token quotas, with role-based access controls. MCP connections include tools such as Slack, GitHub, Confluence, and Datadog, with policies for tool calls. Deployment includes SaaS, with VPC, on-premises, and air-gapped options for Enterprise. Developer is free; Pro costs $25 a month, billed per user. Developer includes 10,000 requests per user monthly, while Pro includes 20,000 and charges $20 per additional 100,000 requests.