gemma-3-1b-it

Checkpointgoogle/gemma-3-1b-itDetailed entryModel card

Support summary

gemma-3-1b-it is a checkpoint published by Google, built on the Gemma3ForCausalLM architecture. The newest indexed releases vLLM 0.28.0, SGLang 0.5.19, and TensorRT-LLM 1.2.1 all document support.

vLLM documents support in 20 of 20 indexed releases, from 0.17.0 to 0.28.0. SGLang documents support in 13 of 13 indexed releases, from 0.5.10 to 0.5.19. TensorRT-LLM documents support in 2 of 2 indexed releases, from 1.2.0 to 1.2.1.

License
gemma
Hugging Face model card
Publisher
Google
Task
text generation
License
gemma
Library
transformers
Architecture
Gemma3ForCausalLM
Weight tensor elements
999.9M
Tensor types
BF16
Base models
google/gemma-3-1b-pt
Weight access
Publisher approval or terms required
Repository created
2025-03-10
Source 1: google/gemma-3-1b-it · publisher model cardSource 2: google/gemma-3-1b-it · Hugging Face metadataReviewed
Model notes and sources

The 1B text model has a different architecture from the larger multimodal Gemma 3 checkpoints.

Engine support

3 engines

Engine support for gemma-3-1b-it
EngineReleaseCheckpoint supportEvidence scopeLast known supported
vLLM0.28.0Newest indexedCheckpoint evidenceSource: vLLM v0.28.0 · docs/models/supported_models.mdReviewed 0.28.0This release
Features, dependencies and evidence for vLLM 0.28.0
SGLang0.5.19Newest indexedCheckpoint evidenceSource: SGLang v0.5.19 · docs/docs/supported-models/generative_models.mdxReviewed 0.5.19This release
Features, dependencies and evidence for SGLang 0.5.19
TensorRT-LLM1.2.1Newest indexedCheckpoint evidenceSource 1: TensorRT-LLM v1.2.1 · docs/source/models/supported-models.mdSource 2: TensorRT-LLM v1.2.1 · docs/source/legacy/reference/support-matrix.mdReviewed 1.2.1This release
Features, dependencies and evidence for TensorRT-LLM 1.2.1