From: mlc-ai <github.com/mlc-ai>Newsgroups: alt.freeweights.toolsSubject:

XGrammar

Release: v0.2.9 (2026-11-09)Commit: 8f9a127License: Apache-2.0

Fast structured-generation engine used by vLLM, SGLang and MLC LLM.

agents and gatewaysv0.2.9releaseXGrammarPythonApache-2.0

FactsLicenseApache-2.0LanguagePythonKindagents and gatewaysRelease2026-11-09PlatformsLinux, macOS, WindowsLinks to the projectpermissive

$ pip install xgrammar

Overview Install Use with Freeweights License Provenance

Overview

Fast structured-generation engine used by vLLM, SGLang and MLC LLM.

Kind: agents and gateways
License: Apache-2.0
Language: Python
Platforms: Linux, macOS, Windows
Latest release: v0.2.9 (2026-11-09)
Repository: mlc-ai/xgrammar

Topicslarge-language-modelsstructured-generation

Freeweights links to the project and does not host tool binaries.

Install

$ pip install xgrammar

$ pip install xgrammar

Checked against the project's README on 2026-11-15. The project's own instructions win when they differ: install docs

Freeweights links to the project and does not host tool binaries.

Use with Freeweights

Use a catalog model

Download the weights from Freeweights first (HF_ENDPOINT or fw.py), then point the tool at the folder.

Catalog models it can run (4926)

135M-lc-100k-rope-12B a2-rl-e2egit_large-50-32B Accio-Lab_occamy-1.0-GGUF AesCode-32B AesCode-32B-GGUF AesCode-8B AesCode-8B-GGUF AFM-4.5B AFM-4.5B-Base AFM-4.5B-ONNX AgentCPM-Report agentica-org_DeepCoder-14B-Preview-GGUF agentica-org_DeepScaleR-1.5B-Preview-GGUF agentica-org_DeepSWE-Preview-GGUF Agents-A1-4B AI21-Jamba-Reasoning-3B AI21-Jamba2-Mini ai21labs_AI21-Jamba-Reasoning-3B-GGUF ai21labs_AI21-Jamba2-Mini-GGUF ai9stars_G9v3-3B-GGUF alamios_Mistral-Small-3.1-DRAFT-0.5B-GGUF AlchemistCoder-L-7B AlchemistCoder-L-7B-GGUF Alexandria-Gemma-4-12B-it-Ornith9-Summaries-LoRA-r128 Alexandria-Gemma-4-12B-it-Ornith9-Summaries-LoRA-r64 Alexandria-Gemma-4-12B-it-Qwen27-Knowledge-Units-LoRA-r128 Alexandria-Gemma-4-12B-it-Qwen27-Summaries-LoRA-r128 Alexandria-Gemma-4-12B-it-Qwen27-Summaries-LoRA-r64 Alexandria-Gemma-4-E4B-it-Qwen27-Knowledge-Units-LoRA-r128 Alibaba-NLP_Tongyi-DeepResearch-30B-A3B-GGUF ALLaM-7B-Instruct-preview allenai_Olmo-3-7B-Instruct-GGUF allenai_Olmo-3-7B-Think-GGUF allenai_Olmo-3.1-32B-Instruct-GGUF allenai_Olmo-3.1-32B-Think-GGUF allenai_olmOCR-2-7B-1025-GGUF allenai_olmOCR-7B-0225-preview-GGUF AM-Thinking-v1 AM-Thinking-v1-GGUF AMD-OLMo-1B AMD-OLMo-1B AMD-OLMo-1B-SFT AMD-OLMo-1B-SFT AMD-OLMo-1B-SFT-DPO AMD-OLMo-1B-SFT-DPO AMD-OLMo-1B-SFT-DPO-GGUF AMD-OLMo-1B-SFT-GGUF Apertus-70B-2509 Apertus-70B-Instruct-2509 Apertus-70B-Instruct-2509-GGUF Apertus-8B-2509 Apertus-8B-Instruct-2509 Apertus-8B-Instruct-2509-GGUF Apertus-8B-Instruct-2509-ONNX Apertus-8B-Instruct-2509-unsloth-bnb-4bit Apertus-v1.1-0.5B Apertus-v1.1-0.5B-Instruct Apertus-v1.1-0.5B-Instruct-ONNX Apertus-v1.1-0.5B-Instruct-QAD-INT4-ONNX Apertus-v1.1-1.5B

and 4866 more.

License

License: Apache-2.0
Class: Permissive

Read the license

Freeweights links to the project and does not host tool binaries.

Provenance

From: mlc-ai <github.com/mlc-ai>Newsgroups: alt.freeweights.toolsSubject: XGrammarRelease: v0.2.9 (2026-11-09)Commit: 8f9a127License: Apache-2.0

Repository: mlc-ai/xgrammar
Pinned release: v0.2.9, 2026-11-09
Release commit: 8f9a1279fdbed47739bd75b4099d1d059a1ce3e0
Default branch: main 1ec3f9904c0a3213d76c824683d6f8560ae43c89
Fetched: 2026-11-15
Takedowns: None.

Freeweights links to the project and does not host tool binaries.

Get it

Install Project repository

Works with

4926 catalog models. See the list