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simple_example.py
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# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from vertexai.generative_models import GenerationResponse
PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
def count_token_example() -> GenerationResponse:
# [START generativeaionvertexai_gemini_token_count]
import vertexai
from vertexai.generative_models import GenerativeModel
# TODO(developer): Update and un-comment below line
# PROJECT_ID = "your-project-id"
vertexai.init(project=PROJECT_ID, location="us-central1")
model = GenerativeModel("gemini-1.5-flash-002")
prompt = "Why is the sky blue?"
# Prompt tokens count
response = model.count_tokens(prompt)
print(f"Prompt Token Count: {response.total_tokens}")
print(f"Prompt Character Count: {response.total_billable_characters}")
# Send text to Gemini
response = model.generate_content(prompt)
# Response tokens count
usage_metadata = response.usage_metadata
print(f"Prompt Token Count: {usage_metadata.prompt_token_count}")
print(f"Candidates Token Count: {usage_metadata.candidates_token_count}")
print(f"Total Token Count: {usage_metadata.total_token_count}")
# Example response:
# Prompt Token Count: 6
# Prompt Character Count: 16
# Prompt Token Count: 6
# Candidates Token Count: 315
# Total Token Count: 321
# [END generativeaionvertexai_gemini_token_count]
return response
if __name__ == "__main__":
count_token_example()