Tiny dummy models
Collection
Randomly initialized tiny models for debugging/testing purpose • 176 items • Updated • 6
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("yujiepan/phi-3.5-tiny-random", trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained("yujiepan/phi-3.5-tiny-random", trust_remote_code=True)
messages = [
{"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
messages,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device)
outputs = model.generate(**inputs, max_new_tokens=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))This model is for debugging. It is randomly initialized using the config from microsoft/Phi-3.5-mini-instruct but with smaller size.
Codes:
import os
import torch
import transformers
from transformers import (AutoConfig, AutoModelForCausalLM, AutoTokenizer,
GenerationConfig, pipeline, set_seed)
model_id = "microsoft/Phi-3.5-mini-instruct"
repo_id = "yujiepan/phi-3.5-tiny-random"
save_path = f"/tmp/{repo_id}"
config = AutoConfig.from_pretrained(model_id, trust_remote_code=True)
config.hidden_size = 16
config.intermediate_size = 32
config.num_attention_heads = 4
config.num_hidden_layers = 2
config.num_key_value_heads = 4
config.rope_scaling['long_factor'] = [1.0299, 1.0499]
config.rope_scaling['short_factor'] = [1.05, 1.05]
tokenizer = AutoTokenizer.from_pretrained(model_id, trust_remote_code=True)
tokenizer.save_pretrained(save_path)
model = AutoModelForCausalLM.from_config(
config, torch_dtype=torch.bfloat16,
# attn_implementation="sdpa",
trust_remote_code=True,
)
model.generation_config = GenerationConfig.from_pretrained(
model_id, trust_remote_code=True
)
set_seed(42)
with torch.no_grad():
for _, p in sorted(model.named_parameters()):
torch.nn.init.uniform_(p, -0.2, 0.2)
model.save_pretrained(save_path)
pipe = pipeline("text-generation", model=save_path, device="cuda",
trust_remote_code=True, max_new_tokens=20)
print(pipe("Hello World!"))
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("text-generation", model="yujiepan/phi-3.5-tiny-random", trust_remote_code=True) messages = [ {"role": "user", "content": "Who are you?"}, ] pipe(messages)