LLM ReferenceLLM Reference

Granite 4.0 H 1B

granite-4.0-h-1b

Open Source

About

IBM Granite 4.0 H 1B is an ultra-compact hybrid-SSM (Nano series) model with ~1.5B parameters, designed for on-device and browser-based inference. Part of the Granite 4.0 Nano family. Uses IBM's efficient hybrid SSM architecture with native support for vLLM, llama.cpp, and MLX. ISO 42001 certified. Apache 2.0.

Granite 4.0 H 1B has a 128K-token context window.

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

Rankings

Best Open Source LLMsBest Small Language Models (SLMs)Cheapest LLM APIsBest LLM APIsBest Free LLMsBest LLMs for WritingBest LLMs for Marketing

Specifications

FamilyGranite 4
Released2025-10-28
Parameters~1.5B
Context128K
ArchitectureHybrid SSM (Mamba2 + attention)

Created by

IBM ResearchIBM Research

Creating reliable and adaptable AI solutions

Armonk, New York, United States
Founded 1945
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