upstream tomaarsen/Qwen3-Reranker-0.6B-seq-cls (#1)

- upstream tomaarsen/Qwen3-Reranker-0.6B-seq-cls (af8735ad593b7355b95433165d72a87aca397528)

.gitattributes

@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+tokenizer.json filter=lfs diff=lfs merge=lfs -text

README.md

@@ -1,3 +1,370 @@
----
-license: apache-2.0
----
+---
+license: apache-2.0
+base_model:
+- Qwen/Qwen3-0.6B-Base
+tags:
+- transformers
+- sentence-transformers
+pipeline_tag: text-ranking
+---
+# Qwen3-Reranker-0.6B
+
+<p align="center">
+    <img src="https://qianwen-res.oss-accelerate-overseas.aliyuncs.com/logo_qwen3.png" width="400"/>
+<p>
+
+> [!NOTE]
+> This is a copy of the [Qwen3-Reranker-0.6B](https://huggingface.co/Qwen/Qwen3-Reranker-0.6B) model, part of the [Qwen3 Reranker series](https://huggingface.co/collections/Qwen/qwen3-reranker-6841b22d0192d7ade9cdefea), modified as a sequence classification model instead. See [Updated Usage](#updated-usage) for details on how to use it, or [Original Usage](#original-usage) for the original usage.
+> 
+> See [this discussion](https://huggingface.co/Qwen/Qwen3-Reranker-0.6B/discussions/3) for details on the conversion approach.
+
+## Highlights
+
+The Qwen3 Embedding model series is the latest proprietary model of the Qwen family, specifically designed for text embedding and ranking tasks. Building upon the dense foundational models of the Qwen3 series, it provides a comprehensive range of text embeddings and reranking models in various sizes (0.6B, 4B, and 8B). This series inherits the exceptional multilingual capabilities, long-text understanding, and reasoning skills of its foundational model. The Qwen3 Embedding series represents significant advancements in multiple text embedding and ranking tasks, including text retrieval, code retrieval, text classification, text clustering, and bitext mining.
+
+**Exceptional Versatility**: The embedding model has achieved state-of-the-art performance across a wide range of downstream application evaluations. The 8B size embedding model ranks No.1 in the MTEB multilingual leaderboard (as of June 5, 2025, score 70.58), while the reranking model excels in various text retrieval scenarios.
+
+**Comprehensive Flexibility**: The Qwen3 Embedding series offers a full spectrum of sizes (from 0.6B to 8B) for both embedding and reranking models, catering to diverse use cases that prioritize efficiency and effectiveness. Developers can seamlessly combine these two modules. Additionally, the embedding model allows for flexible vector definitions across all dimensions, and both embedding and reranking models support user-defined instructions to enhance performance for specific tasks, languages, or scenarios.
+
+**Multilingual Capability**: The Qwen3 Embedding series offer support for over 100 languages, thanks to the multilingual capabilites of Qwen3 models. This includes various programming languages, and provides robust multilingual, cross-lingual, and code retrieval capabilities.
+
+## Model Overview
+
+**Qwen3-Reranker-0.6B** has the following features:
+
+- Model Type: Text Reranking
+- Supported Languages: 100+ Languages
+- Number of Paramaters: 0.6B
+- Context Length: 32k
+
+For more details, including benchmark evaluation, hardware requirements, and inference performance, please refer to our [blog](https://qwenlm.github.io/blog/qwen3-embedding/), [GitHub](https://github.com/QwenLM/Qwen3-Embedding).
+
+## Qwen3 Embedding Series Model list
+
+| Model Type       | Models               | Size | Layers | Sequence Length | Embedding Dimension | MRL Support | Instruction Aware |
+|------------------|----------------------|------|--------|-----------------|---------------------|-------------|----------------|
+| Text Embedding   | [Qwen3-Embedding-0.6B](https://huggingface.co/Qwen/Qwen3-Embedding-0.6B) | 0.6B | 28     | 32K             | 1024                | Yes         | Yes            |
+| Text Embedding   | [Qwen3-Embedding-4B](https://huggingface.co/Qwen/Qwen3-Embedding-4B)   | 4B   | 36     | 32K             | 2560                | Yes         | Yes            |
+| Text Embedding   | [Qwen3-Embedding-8B](https://huggingface.co/Qwen/Qwen3-Embedding-8B)   | 8B   | 36     | 32K             | 4096                | Yes         | Yes            |
+| Text Reranking   | [Qwen3-Reranker-0.6B](https://huggingface.co/Qwen/Qwen3-Reranker-0.6B) | 0.6B | 28     | 32K             | -                   | -           | Yes            |
+| Text Reranking   | [Qwen3-Reranker-4B](https://huggingface.co/Qwen/Qwen3-Reranker-4B)   | 4B   | 36     | 32K             | -                   | -           | Yes            |
+| Text Reranking   | [Qwen3-Reranker-8B](https://huggingface.co/Qwen/Qwen3-Reranker-8B)   | 8B   | 36     | 32K             | -                   | -           | Yes            |
+
+> **Note**:
+> - `MRL Support` indicates whether the embedding model supports custom dimensions for the final embedding. 
+> - `Instruction Aware` notes whether the embedding or reranking model supports customizing the input instruction according to different tasks.
+> - Our evaluation indicates that, for most downstream tasks, using instructions (instruct) typically yields an improvement of 1% to 5% compared to not using them. Therefore, we recommend that developers create tailored instructions specific to their tasks and scenarios. In multilingual contexts, we also advise users to write their instructions in English, as most instructions utilized during the model training process were originally written in English.
+
+
+## Usage
+
+With Transformers versions earlier than 4.51.0, you may encounter the following error:
+```
+KeyError: 'qwen3'
+```
+
+### Updated Usage
+
+#### Updated Sentence Transformers Usage
+
+```python
+# Requires transformers>=4.51.0
+from sentence_transformers import CrossEncoder
+
+
+def format_queries(query, instruction=None):
+    prefix = '<|im_start|>system\nJudge whether the Document meets the requirements based on the Query and the Instruct provided. Note that the answer can only be "yes" or "no".<|im_end|>\n<|im_start|>user\n'
+    if instruction is None:
+        instruction = (
+            "Given a web search query, retrieve relevant passages that answer the query"
+        )
+    return f"{prefix}<Instruct>: {instruction}\n<Query>: {query}\n"
+
+
+def format_document(document):
+    suffix = "<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n"
+    return f"<Document>: {document}{suffix}"
+
+
+model = CrossEncoder("tomaarsen/Qwen3-Reranker-0.6B-seq-cls")
+
+task = "Given a web search query, retrieve relevant passages that answer the query"
+
+queries = [
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+]
+
+documents = [
+    "Venus is often called Earth's twin because of its similar size and proximity.",
+    "Mars, known for its reddish appearance, is often referred to as the Red Planet.",
+    "Jupiter, the largest planet in our solar system, has a prominent red spot.",
+    "Saturn, famous for its rings, is sometimes mistaken for the Red Planet.",
+]
+
+pairs = [
+    [format_queries(query, task), format_document(doc)]
+    for query, doc in zip(queries, documents)
+]
+scores = model.predict(pairs)
+print(scores.tolist())
+# [0.04272603616118431, 0.9991921782493591, 0.40642625093460083, 0.9718492031097412]
+```
+
+#### Updated Transformers Usage
+
+```python
+# Requires transformers>=4.51.0
+from transformers import AutoModelForSequenceClassification, AutoTokenizer
+
+
+def format_instruction(instruction, query, doc):
+    prefix = '<|im_start|>system\nJudge whether the Document meets the requirements based on the Query and the Instruct provided. Note that the answer can only be "yes" or "no".<|im_end|>\n<|im_start|>user\n'
+    suffix = "<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n"
+    if instruction is None:
+        instruction = (
+            "Given a web search query, retrieve relevant passages that answer the query"
+        )
+    output = f"{prefix}<Instruct>: {instruction}\n<Query>: {query}\n<Document>: {doc}{suffix}"
+    return output
+
+
+tokenizer = AutoTokenizer.from_pretrained("tomaarsen/Qwen3-Reranker-0.6B-seq-cls", padding_side="left")
+model = AutoModelForSequenceClassification.from_pretrained("tomaarsen/Qwen3-Reranker-0.6B-seq-cls").eval()
+# We recommend enabling flash_attention_2 for better acceleration and memory saving.
+# model = AutoModelForSequenceClassification.from_pretrained("tomaarsen/Qwen3-Reranker-0.6B-seq-cls", torch_dtype=torch.float16, attn_implementation="flash_attention_2").cuda().eval()
+max_length = 8192
+
+task = "Given a web search query, retrieve relevant passages that answer the query"
+
+queries = [
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+]
+
+documents = [
+    "Venus is often called Earth's twin because of its similar size and proximity.",
+    "Mars, known for its reddish appearance, is often referred to as the Red Planet.",
+    "Jupiter, the largest planet in our solar system, has a prominent red spot.",
+    "Saturn, famous for its rings, is sometimes mistaken for the Red Planet.",
+]
+
+pairs = [format_instruction(task, query, doc) for query, doc in zip(queries, documents)]
+inputs = tokenizer(
+    pairs,
+    padding=True,
+    truncation=True,
+    max_length=max_length,
+    return_tensors="pt",
+)
+logits = model(**inputs).logits.squeeze()
+print(logits.tolist())
+# [-3.109282970428467, 7.120373725891113, -0.37874650955200195, 3.5416228771209717]
+
+scores = logits.sigmoid()
+print(scores.tolist())
+# [0.04272596165537834, 0.9991921782493591, 0.406429260969162, 0.9718491435050964]
+```
+
+### Original Usage
+
+#### Original Transformers Usage
+
+```python
+# Requires transformers>=4.51.0
+import torch
+from transformers import AutoModel, AutoTokenizer, AutoModelForCausalLM
+
+def format_instruction(instruction, query, doc):
+    if instruction is None:
+        instruction = 'Given a web search query, retrieve relevant passages that answer the query'
+    output = "<Instruct>: {instruction}\n<Query>: {query}\n<Document>: {doc}".format(instruction=instruction,query=query, doc=doc)
+    return output
+
+def process_inputs(pairs):
+    inputs = tokenizer(
+        pairs, padding=False, truncation='longest_first',
+        return_attention_mask=False, max_length=max_length - len(prefix_tokens) - len(suffix_tokens)
+    )
+    for i, ele in enumerate(inputs['input_ids']):
+        inputs['input_ids'][i] = prefix_tokens + ele + suffix_tokens
+    inputs = tokenizer.pad(inputs, padding=True, return_tensors="pt", max_length=max_length)
+    for key in inputs:
+        inputs[key] = inputs[key].to(model.device)
+    return inputs
+
+@torch.no_grad()
+def compute_logits(inputs, **kwargs):
+    batch_scores = model(**inputs).logits[:, -1, :]
+    true_vector = batch_scores[:, token_true_id]
+    false_vector = batch_scores[:, token_false_id]
+    batch_scores = torch.stack([false_vector, true_vector], dim=1)
+    batch_scores = torch.nn.functional.log_softmax(batch_scores, dim=1)
+    scores = batch_scores[:, 1].exp().tolist()
+    return scores
+
+tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen3-Reranker-0.6B", padding_side='left')
+model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3-Reranker-0.6B").eval()
+# We recommend enabling flash_attention_2 for better acceleration and memory saving.
+# model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3-Reranker-0.6B", torch_dtype=torch.float16, attn_implementation="flash_attention_2").cuda().eval()
+token_false_id = tokenizer.convert_tokens_to_ids("no")
+token_true_id = tokenizer.convert_tokens_to_ids("yes")
+max_length = 8192
+
+prefix = "<|im_start|>system\nJudge whether the Document meets the requirements based on the Query and the Instruct provided. Note that the answer can only be \"yes\" or \"no\".<|im_end|>\n<|im_start|>user\n"
+suffix = "<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n"
+prefix_tokens = tokenizer.encode(prefix, add_special_tokens=False)
+suffix_tokens = tokenizer.encode(suffix, add_special_tokens=False)
+        
+task = 'Given a web search query, retrieve relevant passages that answer the query'
+
+queries = [
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+    "Which planet is known as the Red Planet?",
+]
+
+documents = [
+    "Venus is often called Earth's twin because of its similar size and proximity.",
+    "Mars, known for its reddish appearance, is often referred to as the Red Planet.",
+    "Jupiter, the largest planet in our solar system, has a prominent red spot.",
+    "Saturn, famous for its rings, is sometimes mistaken for the Red Planet.",
+]
+
+pairs = [format_instruction(task, query, doc) for query, doc in zip(queries, documents)]
+
+# Tokenize the input texts
+inputs = process_inputs(pairs)
+scores = compute_logits(inputs)
+
+print("scores: ", scores)
+# scores:  [0.04272589832544327, 0.9991921782493591, 0.40642935037612915, 0.9718492031097412]
+```
+
+
+#### Original vLLM Usage 
+
+```python
+# Requires vllm>=0.8.5
+import logging
+from typing import Dict, Optional, List
+
+import json
+import logging
+
+import torch
+
+from transformers import AutoTokenizer, is_torch_npu_available
+from vllm import LLM, SamplingParams
+from vllm.distributed.parallel_state import destroy_model_parallel
+import gc
+import math
+from vllm.inputs.data import TokensPrompt
+
+
+        
+def format_instruction(instruction, query, doc):
+    text = [
+        {"role": "system", "content": "Judge whether the Document meets the requirements based on the Query and the Instruct provided. Note that the answer can only be \"yes\" or \"no\"."},
+        {"role": "user", "content": f"<Instruct>: {instruction}\n\n<Query>: {query}\n\n<Document>: {doc}"}
+    ]
+    return text
+
+def process_inputs(pairs, instruction, max_length, suffix_tokens):
+    messages = [format_instruction(instruction, query, doc) for query, doc in pairs]
+    messages =  tokenizer.apply_chat_template(
+        messages, tokenize=True, add_generation_prompt=False, enable_thinking=False
+    )
+    messages = [ele[:max_length] + suffix_tokens for ele in messages]
+    messages = [TokensPrompt(prompt_token_ids=ele) for ele in messages]
+    return messages
+
+def compute_logits(model, messages, sampling_params, true_token, false_token):
+    outputs = model.generate(messages, sampling_params, use_tqdm=False)
+    scores = []
+    for i in range(len(outputs)):
+        final_logits = outputs[i].outputs[0].logprobs[-1]
+        token_count = len(outputs[i].outputs[0].token_ids)
+        if true_token not in final_logits:
+            true_logit = -10
+        else:
+            true_logit = final_logits[true_token].logprob
+        if false_token not in final_logits:
+            false_logit = -10
+        else:
+            false_logit = final_logits[false_token].logprob
+        true_score = math.exp(true_logit)
+        false_score = math.exp(false_logit)
+        score = true_score / (true_score + false_score)
+        scores.append(score)
+    return scores
+
+number_of_gpu = torch.cuda.device_count()
+tokenizer = AutoTokenizer.from_pretrained('Qwen/Qwen3-Reranker-0.6B')
+model = LLM(model='Qwen/Qwen3-Reranker-0.6B', tensor_parallel_size=number_of_gpu, max_model_len=10000, enable_prefix_caching=True, gpu_memory_utilization=0.8)
+tokenizer.padding_side = "left"
+tokenizer.pad_token = tokenizer.eos_token
+suffix = "<|im_end|>\n<|im_start|>assistant\n<think>\n\n</think>\n\n"
+max_length=8192
+suffix_tokens = tokenizer.encode(suffix, add_special_tokens=False)
+true_token = tokenizer("yes", add_special_tokens=False).input_ids[0]
+false_token = tokenizer("no", add_special_tokens=False).input_ids[0]
+sampling_params = SamplingParams(temperature=0, 
+    max_tokens=1,
+    logprobs=20, 
+    allowed_token_ids=[true_token, false_token],
+)
+
+        
+task = 'Given a web search query, retrieve relevant passages that answer the query'
+queries = ["What is the capital of China?",
+    "Explain gravity",
+]
+documents = [
+    "The capital of China is Beijing.",
+    "Gravity is a force that attracts two bodies towards each other. It gives weight to physical objects and is responsible for the movement of planets around the sun.",
+]
+
+pairs = list(zip(queries, documents))
+inputs = process_inputs(pairs, task, max_length-len(suffix_tokens), suffix_tokens)
+scores = compute_logits(model, inputs, sampling_params, true_token, false_token)
+print('scores', scores)
+
+destroy_model_parallel()
+```
+
+📌 **Tip**: We recommend that developers customize the `instruct` according to their specific scenarios, tasks, and languages. Our tests have shown that in most retrieval scenarios, not using an `instruct` on the query side can lead to a drop in retrieval performance by approximately 1% to 5%.
+
+## Evaluation
+
+| Model                              | Param  | MTEB-R  | CMTEB-R | MMTEB-R | MLDR   | MTEB-Code | FollowIR |
+|------------------------------------|--------|---------|---------|---------|--------|-----------|----------|
+| **Qwen3-Embedding-0.6B**               | 0.6B   | 61.82   | 71.02   | 64.64   | 50.26  | 75.41     | 5.09     |
+| Jina-multilingual-reranker-v2-base | 0.3B   | 58.22   | 63.37   | 63.73   | 39.66  | 58.98     | -0.68    |
+| gte-multilingual-reranker-base                      | 0.3B   | 59.51   | 74.08   | 59.44   | 66.33  | 54.18     | -1.64    |
+| BGE-reranker-v2-m3                 | 0.6B   | 57.03   | 72.16   | 58.36   | 59.51  | 41.38     | -0.01    |
+| **Qwen3-Reranker-0.6B**                | 0.6B   | 65.80   | 71.31   | 66.36   | 67.28  | 73.42     | 5.41     |
+| **Qwen3-Reranker-4B**                  | 1.7B   | **69.76** | 75.94   | 72.74   | 69.97  | 81.20     | **14.84** |
+| **Qwen3-Reranker-8B**                  | 8B     | 69.02   | **77.45** | **72.94** | **70.19** | **81.22** | 8.05     |
+
+> **Note**:  
+> - Evaluation results for reranking models. We use the retrieval subsets of MTEB(eng, v2), MTEB(cmn, v1), MMTEB and MTEB (Code), which are MTEB-R, CMTEB-R, MMTEB-R and MTEB-Code.
+> - All scores are our runs based on the top-100 candidates retrieved by dense embedding model [Qwen3-Embedding-0.6B](https://huggingface.co/Qwen/Qwen3-Embedding-0.6B).
+
+## Citation
+If you find our work helpful, feel free to give us a cite.
+
+```
+@misc{qwen3-embedding,
+    title  = {Qwen3-Embedding},
+    url    = {https://qwenlm.github.io/blog/qwen3/},
+    author = {Qwen Team},
+    month  = {May},
+    year   = {2025}
+}
+```

config.json

@@ -0,0 +1,37 @@
+{
+  "architectures": [
+    "Qwen3ForSequenceClassification"
+  ],
+  "attention_bias": false,
+  "attention_dropout": 0.0,
+  "bos_token_id": 151643,
+  "eos_token_id": 151645,
+  "head_dim": 128,
+  "hidden_act": "silu",
+  "hidden_size": 1024,
+  "id2label": {
+    "0": "LABEL_0"
+  },
+  "initializer_range": 0.02,
+  "intermediate_size": 3072,
+  "label2id": {
+    "LABEL_0": 0
+  },
+  "max_position_embeddings": 40960,
+  "max_window_layers": 28,
+  "model_type": "qwen3",
+  "num_attention_heads": 16,
+  "num_hidden_layers": 28,
+  "num_key_value_heads": 8,
+  "pad_token_id": 151643,
+  "rms_norm_eps": 1e-06,
+  "rope_scaling": null,
+  "rope_theta": 1000000,
+  "sliding_window": null,
+  "tie_word_embeddings": true,
+  "torch_dtype": "float32",
+  "transformers_version": "4.52.4",
+  "use_cache": true,
+  "use_sliding_window": false,
+  "vocab_size": 151669
+}

generation_config.json

@@ -0,0 +1,13 @@
+{
+  "bos_token_id": 151643,
+  "do_sample": true,
+  "eos_token_id": [
+    151645,
+    151643
+  ],
+  "pad_token_id": 151643,
+  "temperature": 0.6,
+  "top_k": 20,
+  "top_p": 0.95,
+  "transformers_version": "4.51.3"
+}

model.safetensors

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+oid sha256:2b223e576dc70d8832372a538d4c8458dc25ce9daf209ac47cec4799c85e4da7
+size 2383145520

tokenizer.json

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tokenizer_config.json

@@ -0,0 +1,239 @@
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+  "add_prefix_space": false,
+  "added_tokens_decoder": {
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+}