Comparison intermediate · 3 min read

Vertex AI vs AWS Bedrock comparison

Quick answer
Use Google Vertex AI for seamless integration with Google Cloud services and access to Gemini models. Choose AWS Bedrock for a multi-vendor model marketplace with easy deployment on AWS infrastructure and support for Anthropic Claude and Meta Llama models.

VERDICT

For Google Cloud-centric projects, Vertex AI is the best choice due to native integration and Gemini models; for multi-cloud flexibility and diverse model access, AWS Bedrock is the winner.
ToolKey strengthPricingAPI accessBest for
Google Vertex AINative Google Cloud integration, Gemini modelsPay-as-you-go, detailed pricing on GCP sitePython SDK vertexai, REST APIEnterprise ML workflows on GCP
AWS BedrockMulti-vendor model marketplace, easy AWS deploymentPay-per-use, pricing varies by model providerBoto3 bedrock-runtime client, REST APIHybrid cloud, multi-model access on AWS
Model varietyGemini, custom Vertex modelsN/AN/AGoogle ecosystem users
Model varietyAnthropic Claude, Meta Llama, AI21, Stability AIN/AN/AUsers needing diverse third-party models

Key differences

Google Vertex AI offers deep integration with Google Cloud Platform and access to proprietary Gemini models optimized for various AI tasks. AWS Bedrock provides a multi-vendor marketplace allowing users to access models from Anthropic, Meta, AI21, and Stability AI, all deployable on AWS infrastructure. Pricing models differ, with Vertex AI charging per usage on GCP and Bedrock pricing varying by model provider.

Side-by-side example: Vertex AI chat completion

python
import os
import vertexai
from vertexai.generative_models import GenerativeModel

vertexai.init(project=os.environ["GOOGLE_CLOUD_PROJECT"], location="us-central1")
model = GenerativeModel("gemini-2.0-flash")
response = model.generate_content("Explain the benefits of AI cloud platforms.")
print(response.text)
output
Explain the benefits of AI cloud platforms, including scalability, integration, and access to advanced models.

AWS Bedrock equivalent example

python
import os
import boto3

client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
    modelId="anthropic.claude-3-5-haiku-20241022",
    messages=[{"role": "user", "content": [{"type": "text", "text": "Explain the benefits of AI cloud platforms."}]}]
)
print(response["output"]["message"]["content"][0]["text"])
output
AI cloud platforms provide scalable infrastructure, easy integration with services, and access to powerful AI models from multiple vendors.

When to use each

Use Vertex AI when your infrastructure is primarily on Google Cloud and you want access to Google's Gemini models with seamless integration. Choose AWS Bedrock if you require a variety of third-party models, prefer AWS infrastructure, or want flexibility in model selection across vendors.

ScenarioRecommended Platform
Google Cloud native projectsVertex AI
Multi-cloud or AWS-centric projectsAWS Bedrock
Need for Gemini modelsVertex AI
Access to Anthropic Claude or Meta LlamaAWS Bedrock

Pricing and access

OptionFreePaidAPI access
Google Vertex AINo permanent free tier, some GCP creditsPay-as-you-go per usagePython SDK vertexai, REST API
AWS BedrockNo free tierPay-per-use, varies by modelBoto3 bedrock-runtime client, REST API

Key Takeaways

  • Vertex AI excels in Google Cloud integration and Gemini model access.
  • AWS Bedrock offers a diverse model marketplace with Anthropic and Meta models.
  • Pricing and API access differ; choose based on cloud environment and model needs.
Verified 2026-04 · gemini-2.0-flash, anthropic.claude-3-5-haiku-20241022
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