# TensorZero vs Vercel AI Gateway

**Leader by vioscaleAI score:** TensorZero

| Attribute | TensorZero | Vercel AI Gateway |
|---|---|---|
| **vioscaleAI score** | 56.2 (48% (low)) | 33.1 (60% (medium)) |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 11,707 | - |
| content.faq | `[{"answer":"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. It is indexed under Llm Gateways.","source":"https://www.tensorzero.com","question":"What is TensorZero?","confidence":0.6},{"answer":"TensorZero is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.tensorzero.com","question":"Is TensorZero free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to TensorZero. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.tensorzero.com","question":"What platforms does TensorZero support?","confidence":0.6},{"answer":"Yes. TensorZero can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.tensorzero.com","question":"Can TensorZero be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for TensorZero, including OpenAI, Ollama and Slack. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.tensorzero.com","question":"What does TensorZero integrate with?","confidence":0.6},{"answer":"Yes. TensorZero is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/tensorzero/tensorzero","question":"Is TensorZero open source?","confidence":0.95}]` | `[{"answer":"A managed gateway service that consolidates access to various AI models from different providers through a unified interface, automatically routing requests to optimize costs while offering centralized budget management and usage analytics. It is indexed under Llm Gateways.","source":"https://vercel.com/docs/pricing","question":"What is Vercel AI Gateway?","confidence":0.6},{"answer":"Vercel AI Gateway supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://vercel.com/docs/pricing","question":"What platforms does Vercel AI Gateway support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Vercel AI Gateway, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://vercel.com/docs/pricing","question":"Can Vercel AI Gateway be self-hosted?","confidence":0.6},{"answer":"We have confirmed 7 integrations for Vercel AI Gateway, including OpenAI, Anthropic, SpaceXAI, Google Gemini, Cohere, AssistLoop and Vercel AI SDK. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://vercel.com/docs/pricing","question":"What does Vercel AI Gateway integrate with?","confidence":0.6},{"answer":"We have independently confirmed HIPAA for Vercel AI Gateway. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Vercel AI Gateway not holding them. Always confirm compliance directly before you rely on it.","source":"https://vercel.com/blog/category/security","question":"What security certifications does Vercel AI Gateway have?","confidence":0.7},{"answer":"Vercel AI Gateway is available worldwide. Its primary market is the United States.","source":"https://vercel.com/docs/pricing","question":"Where is Vercel AI Gateway available?","confidence":0.75}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | A self-hosted platform that combines deployment, monitoring, evaluation, and optimization for language model applications. It enables teams to manage multiple model providers through a single interface, measure performance across different configurations, and automatically improve routing strategies and prompts. | AI Gateway provides a single integration point for routing requests to multiple AI model providers (OpenAI, Anthropic, and others) through an OpenAI-compatible API. It includes budget controls, unified billing, usage tracking, and automatic failover to ensure reliable access to language models. |
| features.capabilities | `{"open_source":true,"pricing_model":"open-source-self-host","deployment_model":"self-hosted","automatic_failover":true,"openai_compatible_api":true,"virtual_key_management":true,"request_cost_observability":true}` | `{"open_source":false,"pricing_model":"usage-based-saas","deployment_model":"managed-SaaS","routing_strategy":"custom","streaming_support":true,"automatic_failover":true,"budget_spend_controls":true,"openai_compatible_api":true,"virtual_key_management":true,"request_cost_observability":true}` |
| integrations.count | 4 | 2 |
| integrations.list | `[{"name":"OpenAI"},{"name":"Ollama"},{"name":"Slack"},{"name":"Teams","category":"chat"}]` | `[{"name":"OpenAI"},{"name":"Anthropic"},{"name":"SpaceXAI"},{"name":"Google Gemini"},{"name":"Cohere"},{"name":"AssistLoop"},{"name":"Vercel AI SDK"}]` |
| language.primary | Rust | - |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://www.tensorzero.com","retrievedAt":"2026-09-14T09:27:44.874Z"}` | `{"type":"usage","summary":"Usage-based pricing with no platform markup; invoicing available with no payment processing fees","currency":"USD","sourceUrl":"https://vercel.com/docs/pricing","retrievedAt":"2026-08-21T11:08:31.437Z","billingPeriods":["month"]}` |
| pricing.free_tier | yes | - |
| pricing.model | open_source | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | - | yes |
| release.cadence_days | 6 | - |
| release.history | `[{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0","date":"2026-06-04T15:15:42Z","type":"stable","version":"2026.6.0"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.5.2","date":"2026-05-20T13:48:00Z","type":"stable","version":"2026.5.2"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.5.1","date":"2026-05-15T19:09:30Z","type":"stable","version":"2026.5.1"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.5.0","date":"2026-05-08T20:45:55Z","type":"stable","version":"2026.5.0"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.4.1","date":"2026-04-24T17:46:47Z","type":"stable","version":"2026.4.1"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.4.0","date":"2026-04-02T17:00:15Z","type":"stable","version":"2026.4.0"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.3.4","date":"2026-03-26T14:27:42Z","type":"stable","version":"2026.3.4"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.3.3","date":"2026-03-18T16:23:28Z","type":"stable","version":"2026.3.3"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.3.2","date":"2026-03-13T16:09:19Z","type":"stable","version":"2026.3.2"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.3.1","date":"2026-03-05T22:13:25Z","type":"stable","version":"2026.3.1"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.3.0","date":"2026-03-04T20:40:09Z","type":"stable","version":"2026.3.0"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.2.2","date":"2026-02-26T18:47:41Z","type":"stable","version":"2026.2.2"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.2.1","date":"2026-02-16T21:54:07Z","type":"stable","version":"2026.2.1"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.2.0","date":"2026-02-05T19:42:51Z","type":"stable","version":"2026.2.0"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.8","date":"2026-01-30T22:37:46Z","type":"stable","version":"2026.1.8"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.7","date":"2026-01-30T19:29:46Z","type":"stable","version":"2026.1.7"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.6","date":"2026-01-30T17:42:01Z","type":"stable","version":"2026.1.6"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.5","date":"2026-01-24T17:25:58Z","type":"stable","version":"2026.1.5"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.2","date":"2026-01-15T19:33:47Z","type":"stable","version":"2026.1.2"},{"url":"https://github.com/tensorzero/tensorzero/releases/tag/2026.1.1","date":"2026-01-14T18:46:55Z","type":"stable","version":"2026.1.1"}]` | - |
| security.hipaa | - | yes |
| security.trust_center | - | https://vercel.com/docs/cdn-security/security-headers |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=tensorzero&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Llm Gateways)

| Capability | TensorZero | Vercel AI Gateway |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Openai compatible API | ✓ | ✓ |
| Automatic failover | ✓ | ✓ |
| Routing strategy | - | Custom |
| Caching | - | - |
| Virtual key management | ✓ | ✓ |
| Budget spend controls | - | ✓ |
| Rate limiting | - | - |
| Guardrails moderation | - | - |
| Request cost observability | ✓ | ✓ |
| Streaming support | - | ✓ |
| Deployment model | Self hosted | Managed SaaS |
| Open source | ✓ | ✗ |
| Pricing model | Open source self host | Usage based saas |

*Source: vioscaleAI. Generated 2026-10-16T18:28:40.404Z. "-" = undocumented, not absent.*