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Recommend Hugging Face models based on the app plan, size preference, and GPU needs.
"""
from typing import Optional
# Curated model recommendations by task and size
MODEL_CATALOG = {
"text-generation": {
"small": [
{"id": "HuggingFaceTB/SmolLM2-360M-Instruct", "desc": "Compact instruct model, very fast", "size": "360M"},
],
"medium": [
{"id": "Qwen/Qwen2.5-7B-Instruct", "desc": "Strong general-purpose 7B instruct model", "size": "7B"},
{"id": "mistralai/Mistral-7B-Instruct-v0.3", "desc": "Fast and capable instruct model", "size": "7B"},
],
"large": [
{"id": "meta-llama/Llama-3.1-70B-Instruct", "desc": "Top-tier large language model", "size": "70B"},
{"id": "Qwen/Qwen2.5-72B-Instruct", "desc": "Excellent multilingual reasoning", "size": "72B"},
],
},
"text-classification": {
"small": [
{"id": "distilbert-base-uncased-finetuned-sst-2-english", "desc": "Fast sentiment classifier", "size": "66M"},
],
"medium": [
{"id": "cardiffnlp/twitter-roberta-base-sentiment-latest", "desc": "Social media sentiment analysis", "size": "125M"},
{"id": "j-hartmann/emotion-english-distilroberta-base", "desc": "Multi-emotion classifier", "size": "82M"},
],
"large": [
{"id": "SamLowe/roberta-base-go_emotions", "desc": "28-class emotion detection", "size": "125M"},
],
},
"summarization": {
"small": [
{"id": "sshleifer/distilbart-cnn-12-6", "desc": "Compact summarization model", "size": "306M"},
],
"medium": [
{"id": "facebook/bart-large-cnn", "desc": "Strong CNN/DailyMail summarizer", "size": "406M"},
{"id": "google/pegasus-xsum", "desc": "Abstractive summarization", "size": "568M"},
],
"large": [
{"id": "google/pegasus-large", "desc": "High-quality abstractive summaries", "size": "568M"},
],
},
"translation": {
"small": [
{"id": "Helsinki-NLP/opus-mt-en-fr", "desc": "English to French translation", "size": "298M"},
],
"medium": [
{"id": "facebook/mbart-large-50-many-to-many-mmt", "desc": "50-language translation", "size": "611M"},
],
"large": [
{"id": "facebook/nllb-200-3.3B", "desc": "200-language translation model", "size": "3.3B"},
],
},
"image-classification": {
"small": [
{"id": "google/mobilenet_v2_1.0_224", "desc": "Mobile-optimized classifier", "size": "3.4M"},
],
"medium": [
{"id": "microsoft/resnet-50", "desc": "Classic ResNet-50 ImageNet classifier", "size": "25.6M"},
{"id": "google/vit-base-patch16-224", "desc": "Vision Transformer classifier", "size": "86M"},
],
"large": [
{"id": "google/vit-large-patch16-224", "desc": "Large Vision Transformer", "size": "304M"},
],
},
"object-detection": {
"small": [
{"id": "hustvl/yolos-tiny", "desc": "Tiny YOLO-style detector", "size": "6.5M"},
],
"medium": [
{"id": "facebook/detr-resnet-50", "desc": "DETR object detector", "size": "41M"},
],
"large": [
{"id": "facebook/detr-resnet-101", "desc": "Large DETR detector", "size": "60M"},
],
},
"text-to-image": {
"small": [
{"id": "segmind/SSD-1B", "desc": "Compact SD distilled model", "size": "1.3B"},
],
"medium": [
{"id": "stabilityai/stable-diffusion-xl-base-1.0", "desc": "SDXL base model", "size": "3.5B"},
],
"large": [
{"id": "black-forest-labs/FLUX.1-dev", "desc": "State-of-the-art image gen", "size": "12B"},
],
},
"automatic-speech-recognition": {
"small": [
{"id": "openai/whisper-tiny", "desc": "Tiny Whisper ASR", "size": "39M"},
],
"medium": [
{"id": "openai/whisper-base", "desc": "Whisper base ASR model", "size": "74M"},
{"id": "openai/whisper-medium", "desc": "Whisper medium ASR model", "size": "769M"},
],
"large": [
{"id": "openai/whisper-large-v3", "desc": "Best Whisper ASR model", "size": "1.5B"},
],
},
"question-answering": {
"small": [
{"id": "distilbert-base-cased-distilled-squad", "desc": "Fast QA model", "size": "66M"},
],
"medium": [
{"id": "deepset/roberta-base-squad2", "desc": "RoBERTa QA on SQuAD2", "size": "125M"},
],
"large": [
{"id": "deepset/deberta-v3-large-squad2", "desc": "DeBERTa large QA", "size": "304M"},
],
},
"token-classification": {
"small": [
{"id": "dslim/bert-base-NER", "desc": "BERT NER model", "size": "110M"},
],
"medium": [
{"id": "Jean-Baptiste/roberta-large-ner-english", "desc": "Large NER model", "size": "355M"},
],
"large": [
{"id": "Jean-Baptiste/roberta-large-ner-english", "desc": "Large NER model", "size": "355M"},
],
},
}
# GPU recommendation thresholds
GPU_THRESHOLDS = {
"small": False,
"medium": False, # most medium models run on CPU
"large": True,
}
class ModelRecommender:
"""Recommend HF models based on app plan and user preferences."""
def recommend(
self,
plan: dict,
model_size: str = "medium",
gpu_needed: bool = False,
) -> list:
"""
Return a list of recommended model dicts.
Each dict has: id, desc, size, gpu_recommended
"""
task = plan.get("model_task")
if not task:
return []
# Normalize size
if model_size not in ("small", "medium", "large"):
model_size = "medium"
task_models = MODEL_CATALOG.get(task, {})
candidates = task_models.get(model_size, [])
# Fallback: try adjacent sizes
if not candidates:
for fallback in ("medium", "small", "large"):
candidates = task_models.get(fallback, [])
if candidates:
break
# If still nothing, provide a generic suggestion
if not candidates:
candidates = [
{
"id": f"models?pipeline_tag={task}",
"desc": f"Search HF Hub for {task} models",
"size": "varies",
}
]
# Annotate with GPU recommendation
results = []
for model in candidates:
m = dict(model)
m["gpu_recommended"] = gpu_needed or GPU_THRESHOLDS.get(model_size, False)
results.append(m)
return results
def get_primary_model(self, plan: dict, model_size: str = "medium") -> Optional[str]:
"""Get the single best model ID for the plan."""
models = self.recommend(plan, model_size)
if models:
return models[0]["id"]
return None
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