# Keywords AI vs TensorZero

**Leader by vioscaleAI score:** Keywords AI

| Attribute | Keywords AI | TensorZero |
|---|---|---|
| **vioscaleAI score** | 62.4 (68% (medium)) | 56.2 (48% (low)) |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | - | 11,707 |
| content.faq | `[{"answer":"Provides tools for monitoring language model performance, managing prompts, and evaluating language model outputs for engineering teams It is indexed under Llm Gateways.","source":"https://www.keywordsai.co","question":"What is Keywords AI?","confidence":0.6},{"answer":"Keywords AI offers a free tier, so you can start without paying. Paid plans start at $199 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.keywordsai.co/pricing","question":"Is Keywords AI free?","confidence":0.6},{"answer":"Keywords AI supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.keywordsai.co/pricing","question":"What platforms does Keywords AI support?","confidence":0.6},{"answer":"Yes. Keywords AI can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.keywordsai.co/pricing","question":"Can Keywords AI be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for Keywords AI, including PostHog, Vercel AI, n8n and OpenTelemetry. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.keywordsai.co","question":"What does Keywords AI integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for Keywords AI. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Keywords AI not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.keywordsai.co/pricing","question":"What security certifications does Keywords AI have?","confidence":0.6},{"answer":"Keywords AI is available worldwide. Its primary market is the United States.","source":"https://www.keywordsai.co/pricing","question":"Where is Keywords AI available?","confidence":0.5}]` | `[{"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}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | Provides tools for monitoring language model performance, managing prompts, and evaluating language model outputs for engineering teams | 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. |
| features.capabilities | `{"caching":"exact","pricing_model":"usage-based-saas","rate_limiting":true,"deployment_model":"managed-SaaS","routing_strategy":"custom","automatic_failover":true,"budget_spend_controls":true,"openai_compatible_api":true,"virtual_key_management":true,"request_cost_observability":true}` | `{"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}` |
| integrations.count | 2 | 4 |
| integrations.list | `[{"name":"PostHog"},{"name":"Vercel AI"},{"name":"n8n"},{"name":"OpenTelemetry"}]` | `[{"name":"OpenAI"},{"name":"Ollama"},{"name":"Slack"},{"name":"Teams","category":"chat"}]` |
| language.primary | - | Rust |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free","features":["Full platform","2 evaluators","5 prompts","Log management","Community Discord"],"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"logs":"100k/mo","prompts":"5","evaluators":"2"}},{"free":false,"name":"Team","summary":"$199/month","features":["Everything in Free","Unlimited datasets","Unlimited evaluators","Unlimited prompts","Private Slack channel","SOC 2 report","Email support"],"commitment":"monthly","components":[{"kind":"fixed","amount":199,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"prompts":"Unlimited","datasets":"Unlimited","evaluators":"Unlimited"}},{"free":false,"name":"Enterprise","summary":"Custom pricing","features":["Custom packages","Volume discount","Custom SLAs","Dedicated support engineer","HIPAA BAA"],"contactSales":true}],"addOns":[{"name":"Additional logs","components":[{"per":{"qty":100000,"unit":"logs"},"kind":"metered","amount":8,"currency":"USD"}]},{"name":"Additional evaluation scores","components":[{"per":{"qty":1000,"unit":"scores"},"kind":"metered","amount":1,"currency":"USD"}]},{"name":"Additional seats","components":[{"kind":"per_unit","unit":"member","amount":15,"period":"month","currency":"USD"}]},{"name":"HIPAA compliance","components":[{"kind":"fixed","amount":249,"period":"month","currency":"USD"}]}],"summary":"Free tier available. Team plan $199/month. Usage add-ons from $1/1k scores and $8/100k logs. Enterprise on request.","currency":"USD","freeTier":true,"sourceUrl":"https://www.keywordsai.co/pricing","retrievedAt":"2026-08-25T21:45:22.085Z","startingPrice":{"amount":199,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","sourceUrl":"https://www.tensorzero.com","retrievedAt":"2026-09-14T09:27:44.874Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":199,"currency":"USD"}` | - |
| 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"}]` |
| reliability.sla_pct | 99.9 | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.iso27001 | yes | - |
| security.soc2 | yes | - |
| 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 | Keywords AI | TensorZero |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Openai compatible API | ✓ | ✓ |
| Automatic failover | ✓ | ✓ |
| Routing strategy | Custom | - |
| Caching | Exact | - |
| Virtual key management | ✓ | ✓ |
| Budget spend controls | ✓ | - |
| Rate limiting | ✓ | - |
| Guardrails moderation | - | - |
| Request cost observability | ✓ | ✓ |
| Streaming support | - | - |
| Deployment model | Managed SaaS | Self hosted |
| Open source | - | ✓ |
| Pricing model | Usage based saas | Open source self host |

*Source: vioscaleAI. Generated 2026-10-16T05:39:03.106Z. "-" = undocumented, not absent.*