# TensorZero - **Canonical URI:** https://www.vioscale.ai/software/tensorzero - **Category:** Llm Gateways - **Homepage:** https://www.tensorzero.com - **Also known as:** tensorzero - **Profile claimed by vendor:** no - **Last updated:** 2026-08-26T19:36:18.429Z ## Vioscale score **46.6 / 100**, confidence 21% (low). Computed 2026-09-01. _(updating — computed under an earlier model version or past its freshness window.)_ Composite of weighted, independently-sourced signals (no user reviews, no vendor payment). | Signal | Score | Weight | Contribution | Evidence present | |---|--:|--:|--:|:--:| | capabilities | 67.1 | 0.07844444444444446 | 5.3 | ✓ | | repo_stars | 76.8 | 0.026 | 2 | ✓ | | integrations | 17.3 | 0.07033333333333334 | 1.2 | ✓ | | dependent_projects | 0 | 0.063 | 0 | ✓ | | dev_activity | 0 | 0.094 | 0 | - | | release_cadence | 96.7 | 0.052 | 5 | ✓ | | security_posture | 0 | 0.073 | 0 | - | | package_downloads | 0 | 0.136 | 0 | - | | security_score | 0 | 0.042 | 0 | - | | community_qa_activity | 0 | 0.063 | 0 | - | ## Pricing _As of 2026-08-21, [verify at source](https://www.tensorzero.com). Independently observed._ Open source · Free tier ## About 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._ ## Platform & deployment - **Platforms:** Web - **Deployment:** Self-hosted ## Integrations (3) _Independently observed._ - OpenAI - Ollama - Slack ## Capabilities _The capabilities that matter for Llm Gateways. "-" = undocumented, not absent._ | Capability | Supported | |---|:--:| | **Capabilities** | | | Openai compatible API | ✓ | | Automatic failover | - | | Routing strategy | - | | Caching | - | | Virtual key management | ✓ | | Budget spend controls | - | | Rate limiting | - | | Guardrails moderation | - | | Request cost observability | ✓ | | Streaming support | - | | Deployment model | Self hosted | | Open source | ✓ | | Pricing model | Open source self host | ## Release history | Version | Date | Type | |---|---|---| | [2026.6.0](https://github.com/tensorzero/tensorzero/releases/tag/2026.6.0) | 2026-06-04 | stable | | [2026.5.2](https://github.com/tensorzero/tensorzero/releases/tag/2026.5.2) | 2026-05-20 | stable | | [2026.5.1](https://github.com/tensorzero/tensorzero/releases/tag/2026.5.1) | 2026-05-15 | stable | | [2026.5.0](https://github.com/tensorzero/tensorzero/releases/tag/2026.5.0) | 2026-05-08 | stable | | [2026.4.1](https://github.com/tensorzero/tensorzero/releases/tag/2026.4.1) | 2026-04-24 | stable | | [2026.4.0](https://github.com/tensorzero/tensorzero/releases/tag/2026.4.0) | 2026-04-02 | stable | | [2026.3.4](https://github.com/tensorzero/tensorzero/releases/tag/2026.3.4) | 2026-03-26 | stable | | [2026.3.3](https://github.com/tensorzero/tensorzero/releases/tag/2026.3.3) | 2026-03-18 | stable | | [2026.3.2](https://github.com/tensorzero/tensorzero/releases/tag/2026.3.2) | 2026-03-13 | stable | | [2026.3.1](https://github.com/tensorzero/tensorzero/releases/tag/2026.3.1) | 2026-03-05 | stable | | [2026.3.0](https://github.com/tensorzero/tensorzero/releases/tag/2026.3.0) | 2026-03-04 | stable | | [2026.2.2](https://github.com/tensorzero/tensorzero/releases/tag/2026.2.2) | 2026-02-26 | stable | | [2026.2.1](https://github.com/tensorzero/tensorzero/releases/tag/2026.2.1) | 2026-02-16 | stable | | [2026.2.0](https://github.com/tensorzero/tensorzero/releases/tag/2026.2.0) | 2026-02-05 | stable | | [2026.1.8](https://github.com/tensorzero/tensorzero/releases/tag/2026.1.8) | 2026-01-30 | stable | _… and 5 earlier release(s)._ ## Security & compliance Known vulnerabilities: 1 (1 in the last 12 months), max severity HIGH ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=tensorzero&per_page=100)). A count reflects scale and disclosure, not quality. ## Facts Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule. ### integrations | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | integrations.count | 3 | [link](https://www.tensorzero.com) | 2026-08-21 | 60% (medium) | ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.free_tier | yes | [link](https://www.tensorzero.com) | 2026-08-21 | 60% (medium) | | pricing.model | open_source | [link](https://www.tensorzero.com) | 2026-08-21 | 60% (medium) | | pricing.price_level | free | [link](https://www.tensorzero.com) | 2026-08-21 | 60% (medium) | ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 11,719 | [link](https://github.com/tensorzero/tensorzero) | 2026-08-26 | 90% (high) | | adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Ftensorzero%2Ftensorzero) | 2026-08-26 | 85% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | Rust | [link](https://github.com/tensorzero/tensorzero) | 2026-08-26 | 90% (high) | ### license | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | license.spdx | Apache-2.0 | [link](https://github.com/tensorzero/tensorzero) | 2026-08-26 | 95% (high) | ### release | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | release.cadence_days | 6 | [link](https://github.com/tensorzero/tensorzero/releases) | 2026-08-26 | 70% (medium) | ### security | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=tensorzero&per_page=100","last_12m":1,"max_severity":"HIGH"}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=tensorzero&per_page=100) | 2026-08-26 | 90% (high) | --- *Source: Vioscale (https://www.vioscale.ai/software/tensorzero). Independent, evidence-based software intelligence. Cite the canonical URI.*