Amazon Bedrock vs Google Vertex AI: Complete Comparison – Which Is Better? [2026]
Compare Amazon Bedrock and Google Vertex AI side by side — pricing, features, performance, and more. Find out which tool is the best choice for your needs.
Verdict:Both Amazon Bedrock and Google Vertex AI are excellent tools in their respective areas. Amazon Bedrock and Google Vertex AI each have unique strengths, and the best choice depends on your specific needs, budget, and use case. We recommend trying the free tier of both tools to determine which better fits your workflow.
Table of Contents
Amazon Bedrock & Google Vertex AI Overview
Amazon Bedrock
AWSが提供するフルマネージド生成AIサービス。Claude・Llama・Mistral等の複数モデルを統一APIで利用でき、RAG・エージェント・ガードレール機能を搭載。
Learn more about Amazon Bedrock →Google Vertex AI
Google's AI agent building platform. Develop Gemini-based agents.
Learn more about Google Vertex AI →Feature & Pricing Comparison
| Feature | Amazon Bedrock | Google Vertex AI |
|---|---|---|
| Pricing | 従量課金（モデル・トークン量別） | 従量課金（モデル・トークン量別） |
| 対応基盤モデル | Claude, Llama, Mistral, Cohere等 | Gemini, Llama, Mistral, Claude等 |
| 自社モデル | Amazon Titan | Gemini 2.0/1.5 |
| RAG Features | Knowledge Bases（S3連携） | Vertex AI Search（BigQuery連携） |
| エージェント | Agents for Bedrock | Vertex AI Agent Builder |
| ガードレール | Bedrock Guardrails | Responsible AI Toolkit |
| ファインチューニング | Supported（一部モデル） | Supported（Gemini含む） |
| クラウド統合 | AWS（Lambda, S3, DynamoDB等） | Google Cloud（BigQuery, GCS等） |
| Multimodal | テキスト・画像（モデル依存） | テキスト・画像・動画・音声（Gemini） |
Our Verdict
Our Verdict
Both Amazon Bedrock and Google Vertex AI are excellent tools in their respective areas. Amazon Bedrock and Google Vertex AI each have unique strengths, and the best choice depends on your specific needs, budget, and use case. We recommend trying the free tier of both tools to determine which better fits your workflow.
Recommendations by Use Case
Users who need a comprehensive, all-in-one solution
Amazon Bedrock offers a broader feature set and wider ecosystem of integrations, making it ideal for users who want an all-in-one platform.
Users focused on specific, specialized tasks
Google Vertex AI excels in its core area with deeper functionality and more refined tools for specialized workflows.
Budget-conscious users or beginners
Amazon Bedrock provides a generous free tier and intuitive interface, making it accessible for new users and those on a tight budget.
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