Vendor-independent comparison
AWS Bedrock vs Azure OpenAI — 2026.
A multi-model foundation on AWS versus first-party OpenAI models on Azure. The choice usually follows your existing cloud and data plane.
Side-by-side
Feature and fit comparison.
| Dimension | AWS Bedrock | Azure OpenAI |
|---|---|---|
| Model choice | Claude, Llama, Mistral, Titan, Nova, DeepSeek — one API, many models. | GPT-5, o-series, GPT-4o, DALL·E, Sora, plus Phi and open-source in AI Studio. |
| Pricing model | On-demand per-token + Provisioned Throughput for reserved capacity. | On-demand per-token + Provisioned Throughput Units (PTUs) for reserved. |
| RAG / grounding | Bedrock Knowledge Bases on OpenSearch Serverless / Aurora. | Azure AI Search + on-your-data patterns in AI Studio. |
| Agents | Bedrock Agents with action groups over Lambda, Step Functions, APIs. | AI Foundry Agents + Copilot Studio + Semantic Kernel. |
| Governance | Bedrock Guardrails (PII, denied topics, grounding, jailbreak protection). | Azure Content Safety + Purview DLP + Responsible AI toolbox. |
| Private networking | PrivateLink, VPC endpoints, KMS-encrypted, IAM-scoped. | Private Endpoints, VNet integration, Managed Identity, Customer-Managed Keys. |
| Best-fit customer | AWS-native enterprises wanting model choice and no OpenAI lock-in. | Microsoft-native enterprises wanting first-party OpenAI models. |
| Compliance | SOC 2, HIPAA, PCI DSS, ISO 27001, FedRAMP High. | SOC 2, HIPAA, PCI DSS, ISO 27001, FedRAMP High, EU Data Boundary. |
Verdict
When each one wins.
Pick AWS Bedrock if…
- • You are AWS-standardized (S3, Redshift, Aurora, OpenSearch, IAM).
- • Model choice matters — Claude, Llama, Mistral, Titan, Nova on one API.
- • Bedrock Guardrails, Knowledge Bases and Agents fit your governance model.
- • Provisioned throughput and PrivateLink are hard requirements.
Pick Azure OpenAI if…
- • You are Microsoft-first (M365, Dynamics, Purview, Entra, Azure).
- • Access to the newest OpenAI models (GPT-5, o-series, Sora) is strategic.
- • AI Studio, PTUs and Content Safety integrate with your Azure stack.
- • Purview + Entra + Defender governance is already in place.
FAQ
Questions buyers ask us.
- Which is cheaper?
- At steady high throughput, both PT/PTU pricing lands within 10–20% of each other. Real TCO difference usually comes from your existing cloud commitments.
- Do we get the same OpenAI models on Bedrock?
- No. OpenAI GPT / o-series models are Azure-exclusive. Bedrock counters with Claude, Llama and Nova which are best-in-class for many enterprise use cases.
- Can we run multi-cloud?
- Yes, but it doubles governance and observability cost. We recommend picking a primary and using the other for specific model access when justified.
Fixed-scope evaluation
A defensible recommendation — in 2 weeks.
We run a fixed-scope evaluation against your requirements, integrations and TCO — and hand your team a written recommendation with a 3-year cost model.