Model reference · open weights
gemma-embeddings is an open-weight embedding model from Jaume. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | Jaume |
|---|---|
| Type | Embedding models |
| Task | Embeddings |
| Parameters (lead) | 2.5B |
| Context | 8k tokens |
| Runs with | sentence-transformers |
| Released | 2024-06-29 |
| Popularity | 779 downloads / month |
| Licence | Unknown |
About
This is a sentence-transformers model trained. It maps sentences & paragraphs to a 2048-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.
Model Type: Sentence Transformer
Maximum Sequence Length: 8192 tokens
Output Dimensionality: 2048 tokens
Similarity Function: Cosine Similarity
SentenceTransformer(
(0): Transformer({'max_seq_length': 8192, 'do_lower_case': False}) with Transformer model: GemmaModel
(1): Pooling({'word_embedding_dimension': 2048, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
)
First install the Sentence Transformers library:
pip install -U sentence-transformers
Then you can load this model and run inference.
from sentence_transformers import SentenceTransformer
# Download from the 🤗 Hub
model = SentenceTransformer("Jaume/gemma-2b-embeddings")
# Run inference
sentences = [
'The weather is lovely today.',
"It's so sunny outside!",
'He drove to the stadium.',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 2048]
# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]
From the published model card. Full card on the HuggingFace links in the sidebar.
Benchmarks
As published on the model card — the maker's own numbers, not measured by AxForge.
| Task | Dataset | Metric | Score |
|---|---|---|---|
| Classification | MTEB AmazonCounterfactualClassification (en) | accuracy | 67.493 |
| Classification | MTEB AmazonCounterfactualClassification (en) | ap | 30.935 |
| Classification | MTEB AmazonCounterfactualClassification (en) | ap_weighted | 30.935 |
| Classification | MTEB AmazonCounterfactualClassification (en) | f1 | 61.848 |
| Classification | MTEB AmazonCounterfactualClassification (en) | f1_weighted | 70.733 |
| Classification | MTEB AmazonCounterfactualClassification (en) | main_score | 67.493 |
| Classification | MTEB AmazonReviewsClassification (en) | accuracy | 34.896 |
| Classification | MTEB AmazonReviewsClassification (en) | f1 | 34.751 |
| Classification | MTEB AmazonReviewsClassification (en) | f1_weighted | 34.751 |
| Classification | MTEB AmazonReviewsClassification (en) | main_score | 34.896 |
| Classification | MTEB Banking77Classification (default) | accuracy | 58.425 |
| Classification | MTEB Banking77Classification (default) | f1 | 58.315 |
| Classification | MTEB Banking77Classification (default) | f1_weighted | 58.315 |
| Classification | MTEB Banking77Classification (default) | main_score | 58.425 |
| Classification | MTEB EmotionClassification (default) | accuracy | 29.685 |
| Classification | MTEB EmotionClassification (default) | f1 | 26.487 |
| Classification | MTEB EmotionClassification (default) | f1_weighted | 32.281 |
| Classification | MTEB EmotionClassification (default) | main_score | 29.685 |
Using it via the API
Once AxForge deploys gemma-embeddings for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (gemma-embeddings below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/embeddings \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gemma-embeddings","input":"text to embed"}'
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.