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Pezzo
Techstars '23San Francisco, US · 1 employees on LinkedIn · 1 known investors
Find your way into Pezzo
Pezzo is an open-source, developer-first LLMOps platform for prompt management, versioning, delivery and observability.
Also known as Pezzo Labs · Pezzo.ai · pezzolabs
Investors · 1
How we know: the Techstars portfolio · open dataset · Top 3000 Accelerator Startups (no YC) 2026-08 · Not right? Tell us
Company profile
researched Sep 2026Pezzo is an open-source, developer-first LLMOps platform for building, operating and monitoring AI features backed by large language models. The product centralizes prompt management so that teams can create, edit, test and version prompts in one place, and publish prompt changes instantly without going through a full application release cycle. It also provides observability over prompt executions, including execution history, duration, prompt cost and completion cost statistics, plus troubleshooting features that let users retroactively adjust failed prompts and commit fixes.
The platform is cloud-native and built on open-source infrastructure components including PostgreSQL, ClickHouse, Redis and SuperTokens. It is written primarily in TypeScript, with a NestJS-based server exposing a GraphQL API and a separate web console. Client SDKs are available for Node.js and Python, with feature parity across prompt management, observability and caching, and integration with LangChain. The full stack can be run locally through Docker Compose.
The company positions the platform around cost and performance optimization for AI operations, stating reductions of up to 90% in costs and latency, and reports that it is classified as serving enterprise and small-business customers across AI development and DevOps use cases.
Business model
Pezzo distributes its LLMOps platform as open-source software under the Apache 2.0 license, allowing teams to self-host the full stack via Docker Compose, and is classified as operating a recurring SaaS platform model serving enterprise and small-business customers.
Traction
The primary open-source repository has approximately 3,275 stars, 278 forks and 261 commits, with 29 watchers. The company reported 8 employees as of February 2024.
Latest developments
The main pezzo repository continued to record commit activity into 2026, while several ancillary repositories, including UniLLM, the Python client and the examples repository, have been archived.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Pezzo operates in the LLMOps and AI developer-tooling market, with peers identified as Parea, Kusho, Astros, Portkey AI, Baserun, LastMile AI and Griptape. Its open-source repository has drawn roughly 3,300 GitHub stars and 278 forks.
Pezzo combines prompt versioning and instant prompt delivery with execution-level observability and per-prompt cost tracking in a single self-hostable, Apache 2.0-licensed platform, rather than offering these as separate proprietary services.
Technology
The platform is cloud-native and relies on open-source technologies including PostgreSQL, ClickHouse, Redis and SuperTokens. The codebase is mainly TypeScript, using NestJS for the server with GraphQL schema codegen and Prisma migrations, and a separate console application; it requires Node.js 18+ and can be deployed with Docker Compose. Client libraries exist for Node.js and Python, and the platform integrates with LangChain, supporting prompt management, observability and caching across clients.
Go-to-market
Distribution is led by open-source adoption: the GitHub repository, public documentation, client SDKs for Node.js and Python, LangChain integration, and community contribution channels including issues, pull requests and a Discord server. The company also gained exposure through the Techstars Seattle accelerator and third-party developer content covering the platform.
Developers and engineering teams building AI-powered application features, spanning enterprise and small-business users.
Geography
Pezzo is headquartered in San Francisco, California, United States, with a globally accessible open-source product and community channels such as GitHub and Discord.
History
The company was founded in 2023 and participated in the Techstars Seattle 2023 accelerator. Its core open-source repository, pezzolabs/pezzo, has accumulated 261 commits, about 3,275 stars and 278 forks. Related repositories include UniLLM (a layer for consuming any LLM provider through the OpenAI API, later archived), llm-toolkit, a Python client and an examples repository; several of these were archived in 2023-2024, while the main pezzo repository shows commit activity through 2026.
Compiled by commissioned research from 7 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 2
launches, deals, and filingsPezzo Labs' UniLLM project, a tool for consuming any LLM from any provider via the OpenAI API, saw its last update before being archived on GitHub.
Pezzo took part in the Techstars Seattle 2023 accelerator program.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 7
primary sources listed
- What is Pezzo? - Pezzodocs.pezzo.ai · web
7 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Pezzo do?
- Pezzo is an open-source, developer-first LLMOps platform for prompt management, versioning, delivery and observability.
- Who are Pezzo's investors?
- Pezzo's investors include Techstars.
- Where is Pezzo headquartered?
- Pezzo is headquartered in San Francisco, US.