Llama Stack

Llama Stack is Meta's open-source framework for building AI applications and agents around standardized APIs, with a $0 software price for the public repository, $0/month Llama Stack self-hosting fee, and 0 fixed SaaS tiers listed. Real costs come from compute, GPUs, storage, model providers, vector databases, and operations.

The listed URL points to the official GitHub repository at https://github.com/meta-llama/llama-stack. Current public repository content describes Llama Stack as composable building blocks for building Llama apps, with quick-start documentation, CLI usage, client SDKs, containerized distributions, and provider-based deployment options. The project documents 6 core API areas in its overview: Inference, RAG, Agents, Tools, Safety, and Evals. It also references multiple developer interfaces, including CLI plus Python, TypeScript, iOS, and Android SDK paths.

For directory users, the most useful factual takeaway is that Llama Stack is developer infrastructure rather than a hosted no-code agent builder. It is best evaluated by engineering teams that want a standardized API layer for Llama-based applications, want to avoid hard-coding every provider integration directly into application code, and are comfortable running or configuring open-source infrastructure. The repository documentation references installation through Python packages, a Llama Stack CLI, Docker/container workflows, and client SDK paths, which makes it more implementation-oriented than point-and-click agent products.

Pricing should be understood as open-source software access rather than a fixed SaaS subscription. The public repository can be viewed, installed, and evaluated at a $0 listed software price, and the repository does not list monthly or annual hosted SaaS subscription tiers. However, real deployment cost depends on the selected inference provider, model hosting setup, vector database, cloud infrastructure, GPU requirements, storage, observability, and engineering time. Public quick-start material for Llama 4 notes an 8xH100 GPU host requirement for that example path, and the repository references Version 0.2.0 with Llama 4 support, so teams should size infrastructure against the exact models and providers they choose.

Llama Stack is strongest when a team needs a portable architecture for Llama applications, consistent APIs across environments, and provider flexibility. It is less suitable for non-technical teams that need a managed product with built-in billing, workspace administration, visual workflow design, and packaged customer support. Before production adoption, teams should review the repository documentation, license files, provider matrix, release notes, open issues, security guidance, and the operational requirements of their intended distribution.