AI Infrastructure & MLOps Free

Pezzo

Open LLM operations toolkit for prompts, observability, and collaboration

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PricingFree
Starting price$0
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedAugust 2, 2026
Overview

Tool overview

Pezzo is listed under AI Infrastructure & MLOps AI tools.

Summary

What is Pezzo?

Pezzo is an open toolkit for developing and operating language-model applications. It combines prompt management, versioning, observability, troubleshooting, collaboration, and client integrations, with local self-hosting and a hosted cloud option.

Best fit

Best for

AI developers managing prompts and observability for LLM applications

Audience

Who is it for?

AI engineersApplication developersPrompt teamsPlatform engineers
Recommendation

Decision note

Rebuilt from the original export under the complete V411 factual-source-verification workflow. Preview only. Apply remains blocked until Failures = 0, Warnings = 0, Unmapped = 0, Missing = 0, all explicit clears are reviewed, image import is disabled or V380 accepts the logo asset, one representative WordPress edit screen is compared with the export and proposed row, and a post-Apply zero-change Preview is completed.

Capabilities

Key features

Prompt management and versioning

LLM observability and troubleshooting

SDK and API integrations

Local self-hosting and Pezzo Cloud

Workflows

Use cases

Manage production prompts

Trace model calls

Compare prompt versions

Collaborate on LLM releases

Strengths

Pros

  • Open-source toolkit
  • Free self-hosted operation
  • Official contact email is published
Considerations

Limitations

Prompt changes, model credentials, traces, and user data require access controls and retention policies.

Provider behavior, costs, tool calls, and production regressions must be tested before release.

Cost

Pricing details

Pricing modelFree
Starting price$0
Free planYes
Free trialYes
Pricing context

Billing options

Free self-hostingHosted cloud terms not publicly priced
Pricing context

Pricing note

The open toolkit can be self-hosted without a subscription. Pezzo Cloud is documented, but no stable public hosted price was confirmed.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

OpenAI-compatible models

LangChain

Application SDKs

Webhooks

Specs

Technical details

PlatformsWeb, API
Multilingual supportYes
Login requiredYes
Open sourceYes
DeploymentHybrid
CompanyPezzo
Editions / plansOpen-source self-hosted Pezzo Cloud
Data confidenceHigh
Last verifiedAugust 2, 2026
Documentation → Source code → Data source →
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Answers

Frequently asked questions

Pezzo is an open toolkit for developing and operating language-model applications. It combines prompt management, versioning, observability, troubleshooting, collaboration, and client integrations, with local self-hosting and a hosted cloud option.
AI developers managing prompts and observability for LLM applications
The listed pricing model for Pezzo is free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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