vioscaleAI
Comparison

Keywords AI vs TensorZero

On the evidence we track, Keywords AI leads this comparison with a composite score of 62/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Keywords AI full profile →TensorZero full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Keywords AI62
TensorZero56
Score
vioscaleAI score
Keywords AI62 / 100medium · 68%
TensorZero56 / 100low · 48%
Pricing
Free tier
Keywords AI✓
TensorZero✓
Model
Keywords AIfreemium
TensorZeroopen_source
Price level
Keywords AIhigh
TensorZerofree
Starting price
Keywords AI$199
TensorZero–
Transparent
Keywords AI✓
TensorZero–
Integrations
Count
Keywords AI2
TensorZero4
Security
Gdpr
Keywords AI✓
TensorZero–
Hipaa
Keywords AI✓
TensorZero–
Iso27001
Keywords AI✓
TensorZero–
Soc2
Keywords AI✓
TensorZero–
Vulnerabilities
Reliability
Sla pct
Keywords AI99.9
TensorZero–
Adoption
Dependent repos
Keywords AI–
TensorZero0
Github stars
Keywords AI–
TensorZero11,707
Release
Cadence days
Keywords AI–
TensorZero6
History
Keywords AI–
TensorZero20 items
License
Spdx
Keywords AI–
TensorZeroApache-2.0
Language
Primary
Keywords AI–
TensorZeroRust
Market
Availability
Keywords AIAvailable worldwide · Popular in US
TensorZero–
Content
Faq
Keywords AI7 items
TensorZero6 items

Capabilities

Feature-by-feature on the axes that matter for llm gateways. “-” means undocumented, not absent.

Capabilities
Openai compatible API
Keywords AI✓
TensorZero✓
Automatic failover
Keywords AI✓
TensorZero✓
Routing strategy
Keywords AICustom
TensorZero-
Caching
Keywords AIExact
TensorZero-
Virtual key management
Keywords AI✓
TensorZero✓
Budget spend controls
Keywords AI✓
TensorZero-
Rate limiting
Keywords AI✓
TensorZero-
Guardrails moderation
Keywords AI-
TensorZero-
Request cost observability
Keywords AI✓
TensorZero✓
Streaming support
Keywords AI-
TensorZero-
Deployment model
Keywords AIManaged SaaS
TensorZeroSelf hosted
Open source
Keywords AI-
TensorZero✓
Pricing model
Keywords AIUsage based saas
TensorZeroOpen source self host

What each one is

The product in its own terms, so the numbers below have context.

Keywords AI

Leader

Provides tools for monitoring language model performance, managing prompts, and evaluating language model outputs for engineering teams

Independently observed

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.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Keywords AI

Leader
from $199/moHybridFree tier

Free tier available. Team plan $199/month. Usage add-ons from $1/1k scores and $8/100k logs. Enterprise on request.

  • FreeFree
    • Full platform
    • 2 evaluators
    • 5 prompts
    • Log management
    • Community Discord
  • Team$199/month
    • Everything in Free
    • Unlimited datasets
    • Unlimited evaluators
    • Unlimited prompts
    • Private Slack channel
    • +2 more
  • EnterpriseContact sales
    • Custom packages
    • Volume discount
    • Custom SLAs
    • Dedicated support engineer
    • HIPAA BAA
as of verify ↗

TensorZero

Open source
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Keywords AI✓
TensorZero✓
CLI
Keywords AI✓
TensorZero✗
Deployment
Cloud / SaaS
Keywords AI✓
TensorZero✗
Self-hosted
Keywords AI✓
TensorZero✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Keywords AI

Leader
4 total
  • PostHog
  • Vercel AI
  • n8n
  • OpenTelemetry
Independently observed

TensorZero

4 total
  • OpenAI
  • Ollama
  • Slack
  • Teams
Independently observed
Still deciding?

Keywords AI or TensorZero: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.