{"categories":[{"label":"Artificial Intelligence","url":"https://skillfed.io/packages/category/scientific-engineering-artificial-intelligence"}],"enrichment":{"capability":"Constrains LLM text generation to follow specified grammars (JSON, regex, or context-free rules), ensuring structurally correct output with minimal performance overhead.","skillfed_tags":["constrained-decoding","llm-inference","structured-generation"],"use_cases":["Generate JSON from LLMs with guaranteed schema compliance for API integrations and data pipelines","Enforce regex patterns in model outputs for structured logs, IDs, or formatted text","Build systems where tool calls and responses must follow strict context-free grammars","Reduce latency in production LLM services by eliminating post-generation validation and retry loops","Integrate structured generation into existing inference deployments without rewriting core code"],"what_it_does":"This package is a structured generation engine that constrains LLM output to follow user-defined grammars\u2014JSON schemas, regex patterns, or arbitrary context-free grammars\u2014ensuring 100% structural correctness. It integrates with major LLM inference frameworks and achieves near-zero overhead in JSON generation by carefully optimizing the constrained decoding process.\n\nThe package is designed for portability across platforms (Linux, macOS, Windows) and hardware (CPU, NVIDIA GPU, AMD GPU, Apple Silicon, TPU). It depends on torch, transformers, apache-tvm-ffi, pydantic, triton, numpy, and typing-extensions, making it suitable for teams already working with modern ML inference stacks. Python 3.8 and above are supported.","worth_installing":"Yes, if you need guaranteed structural correctness in LLM outputs. The permissive Apache 2.0 license, active maintenance, and zero known vulnerabilities support production use. Install friction is moderate due to heavy ML dependencies, but wheels are available for standard platforms. Not necessary if you already validate outputs post-generation or don't require strict grammar enforcement."},"id":"xgrammar","links":{"html":"https://skillfed.io/packages/xgrammar","md":"https://skillfed.io/packages/xgrammar.md","pypi":"https://pypi.org/project/xgrammar/"},"maintenance":{"status":"active"},"meta":{"latest_release":"2026-07-22","license_spdx":null,"license_treatment":"permissive","name":"xgrammar","python_support":"supports_current","summary":"Efficient, Flexible and Portable Structured Generation"},"popularity":{"monthly_downloads":7518191,"position":1728,"tier":"top_5000"},"security":{"n_vulnerabilities":0},"version":"0.2.5"}