# AWS Bedrock vs OpenAI API: who uses which

On usedby, 26 companies use AWS Bedrock and 5 use OpenAI API. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 25 of 31 public lines checked.

## Side by side

|  | [AWS Bedrock](https://www.usedby.ai/tools/aws-bedrock.md) | [OpenAI API](https://www.usedby.ai/tools/openai-api.md) |
|---|---|---|
| Public customers | 26 | 5 |
| Confirmed | 20 | 3 |
| Observed | 4 | 1 |
| Signals (job posts) | 2 | 1 |
| Top industries of customers | Marketing Tech (4), Airlines & Aviation Services (2), Automotive Manufacturing (2) | Biotech & Pharma (1), DevTools & Infrastructure (1), Marketing Tech (1) |
| Category | LLM Inference | Foundation Models (LLMs) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- AWS Bedrock: [Condé Nast](https://www.usedby.ai/case-studies/conde-nast-aws-bedrock.md): **minutes**: “Content rights management processes that previously required weeks of manual legal and licensing review now finish in minutes” (captured by usedby 2026-10-03)
- AWS Bedrock: [Blue Origin](https://www.usedby.ai/case-studies/blue-origin-aws-bedrock.md): **90%**: “Reduce hardware development by 90% — from years to days, concept to printed part” (captured by usedby 2026-10-03)

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Source: https://www.usedby.ai/compare/aws-bedrock-vs-openai-api · How we check: https://www.usedby.ai/methodology