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RuteNL/
MobileCLIP2-S3-OpenCLIP-ONNX

Name: MobileCLIP2-S3-OpenCLIP-ONNX
Availability: InStock

onnx

clip

mobileclip2

zero-shot-image-classification

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ONNX export of timm/MobileCLIP2-S3-OpenCLIP

This model is an export of timm/MobileCLIP2-S3-OpenCLIP. It can be used with the open_clip_inference rust crate, or any other ONNX Runtime based implementation.

Usage with `open_clip_inference` in Rust:

rust

use open_clip_inference::Clip;
use std::path::Path;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let model_id = "RuteNL/MobileCLIP2-S3-OpenCLIP-ONNX";
    let mut clip = Clip::from_hf(model_id).build().await?;

    let img = image::open(Path::new("assets/img/cat_face.jpg")).expect("Failed to load image");
    let texts = &[
        "A photo of a cat",
        "A photo of a dog",
        "A photo of a beignet",
    ];

    let results = clip.classify(&img, texts)?;

    for (text, prob) in results {
        println!("{}: {:.2}%", text, prob * 100.0);
    }

    Ok(())
}

Model card for MobileCLIP2-S3-OpenCLIP

These weights and model card are adapted from the original Apple model at https://huggingface.co/apple/MobileCLIP2-S3. This version uses canonical OpenCLIP configs and weight naming.

MobileCLIP2 was introduced in MobileCLIP2: Improving Multi-Modal Reinforced Training (TMLR August 2025 Featured), by Fartash Faghri, Pavan Kumar Anasosalu Vasu, Cem Koc, Vaishaal Shankar, Alexander T Toshev, Oncel Tuzel, Hadi Pouransari.

This repository contains the MobileCLIP2-S3 checkpoint.

Highlights

MobileCLIP2-S4 matches the accuracy of SigLIP-SO400M/14 with 2x fewer parameters and surpasses DFN ViT-L/14 at 2.5x lower latency measured on iPhone12 Pro Max.
MobileCLIP-S3/S4 are our new architectures trained on MobileCLIP’s training dataset, DataCompDR-1B (dashed lines).
Our smallest variant MobileCLIP-S0 obtains similar zero-shot performance as OpenAI's ViT-B/16 model while being 4.8x faster and 2.8x smaller.
MobileCLIP-S2 obtains better avg zero-shot performance than SigLIP's ViT-B/16 model while being 2.3x faster and 2.1x smaller, and trained with 3x less seen samples.
MobileCLIP-B (LT) attains zero-shot ImageNet performance of 77.2% which is significantly better than recent works like DFN and SigLIP with similar architectures or even OpenAI's ViT-L/14@336.

Checkpoints and Results (Original Apple links)

Model	# Seen Samples (B)	# Params (M) (img + txt)	Latency (ms) (img + txt)	IN-1k Zero-Shot Top-1 Acc. (%)	Avg. Perf. (%) on 38 datasets
MobileCLIP2-S0	13	11.4 + 42.4	1.5 + 1.6	71.5	59.7
MobileCLIP2-S2	13	35.7 + 63.4	3.6 + 3.3	77.2	64.1
MobileCLIP2-B	13	86.3 + 63.4	10.4 + 3.3	79.4	65.8
MobileCLIP2-S3	13	125.1 + 123.6	8.0 + 6.6	80.7	66.8
MobileCLIP2-L/14	13	304.3 + 123.6	57.9 + 6.6	81.9	67.8
MobileCLIP2-S4	13	321.6 + 123.6	19.6 + 6.6	81.9	67.5
MobileCLIP-S0	13	11.4 + 42.4	1.5 + 1.6	67.8	58.1
MobileCLIP-S1	13	21.5 + 63.4	2.5 + 3.3	72.6	61.3
MobileCLIP-S2	13	35.7 + 63.4	3.6 + 3.3	74.4	63.7
MobileCLIP-B	13	86.3 + 63.4	10.4 + 3.3	76.8	65.2
MobileCLIP-B (LT)	36	86.3 + 63.4	10.4 + 3.3	77.2	65.8
MobileCLIP-S3	13	125.1 + 123.6	8.0 + 6.6	78.3	66.3
MobileCLIP-L/14	13	304.3 + 123.6	57.9 + 6.6	79.5	66.9
MobileCLIP-S4	13	321.6 + 123.6	19.6 + 6.6	79.4	68.1

How to Use

import torch
import open_clip
from PIL import Image
from urllib.request import urlopen
from timm.utils import reparameterize_model

model, _, preprocess = open_clip.create_model_and_transforms('MobileCLIP2-S3', pretrained='dfndr2b')
model.eval()
tokenizer = open_clip.get_tokenizer('MobileCLIP2-S3')

# For inference/model exporting purposes, optionally reparameterize for better performance
model = reparameterize_model(model)

image = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))
image = preprocess(image).unsqueeze(0)
text = tokenizer(["a diagram", "a dog", "a cat", "a doughnut"])

with torch.no_grad(), torch.amp.autocast(image.device.type):
    image_features = model.encode_image(image)
    text_features = model.encode_text(text)
    image_features /= image_features.norm(dim=-1, keepdim=True)
    text_features /= text_features.norm(dim=-1, keepdim=True)
    text_probs = (100.0 * image_features @ text_features.T).softmax(dim=-1)

print("Label probs:", text_probs)

RuteNL/MobileCLIP2-S3-OpenCLIP-ONNX