TensorZero
Open-source infrastructure for deploying and optimizing language models in production
- Also known as
- tensorzero
What is TensorZero?
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.
TensorZero pricing
We don't have TensorZero's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What TensorZero does
The capabilities that matter for llm gateways, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- 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
Platform & deployment
Independently observed- Web
- Self-hosted
Integrations (4)
Independently observed- Teams
- OpenAI
- Ollama
- Slack
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
TensorZero FAQ
Common questions about TensorZero, answered from independent, dated evidence.
What is 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. It is indexed under Llm Gateways.
Source: https://www.tensorzero.com
Is TensorZero free to use?
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
What platforms does TensorZero support?
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
Can TensorZero be self-hosted?
Yes. TensorZero can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://www.tensorzero.com
What does TensorZero integrate with?
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
Is TensorZero open source?
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.
TensorZero alternatives
Other llm gateways we track, ranked by the same independent score.
- OpenRouterUniversal API gateway for routing across hundreds of language models with automatic provider failoverlow · 34%
- UnifyAI agents that improve their performance through continuous learning from real-world production workmedium · 73%
- Cloudflare AI GatewayRoute AI model requests through Cloudflare for monitoring, caching, cost control, and data protectionlow · 35%
- TrueFoundry AI GatewayA unified AI gateway that connects multiple models with intelligent routing, cost controls, and built-in observabilityhigh · 76%
- Keywords AIA comprehensive platform for engineering with large language modelsmedium · 68%
- Eden AIUnified API to access and route between hundreds of AI models from multiple providersmedium · 60%
Compare TensorZero
Side by side against other llm gateways, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for TensorZero, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Release cadence | 97 | 0.08 | 7.8 | ✓ |
| Capabilities | 75 | 0.08 | 6.0 | ✓ |
| Stars | 77 | 0.05 | 3.6 | ✓ |
| Integrations | 20 | 0.05 | 1.1 | ✓ |
| Dependent projects | 0 | 0.05 | 0.0 | ✓ |
| Development activity | 0 | 0.14 | 0.0 | - |
| Security posture | 0 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.04 | 0.0 | - |
| Security score | 0 | 0.05 | 0.0 | - |
| Developer Q&A activity | 0 | 0.14 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 66% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Open source: Yes · Pricing model: open-source-self-host · Deployment model: self-hosted · Automatic failover: Yes · Openai compatible api: Yes · Virtual key management: Yes | mediumsource · 2026-10-14 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 4 | mediumsource · 2026-10-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Rust | highsource · 2026-10-14 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-10-14 · 95% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=tensorzero&per_page=100 · Last 12m: 0 | highsource · 2026-10-14 · 90% |
Is TensorZero the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank TensorZero against the rest of the llm gateways we index, using the same dated evidence weighted your way.
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