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UsedBy.ai
2026 Comparison

OpenAI API vs Claude

Data-driven comparison based on 50+ enterprise adoption patterns

OpenAI API

OpenAI API

4
Companies
Foundation Models (LLMs)
Category
Higher Adoption
Claude

Claude

by Anthropic

46
Companies
Foundation Models (LLMs)
Category
Data Methodology: Adoption data is based on public tech stack disclosures, job postings, case studies, and verified enterprise reports analyzed by UsedBy.ai. Showing 50 verified enterprise adoptions. More data being indexed continuously.

Feature & Adoption Comparison

MetricOpenAI APIClaude
Enterprise Adoption
4 companies46 companies
Category
Foundation Models (LLMs)Foundation Models (LLMs)
Pricing Model
Contact SalesFREEMIUM
Free Trial
Website
Visit Visit
Decision Guide

Which One Should You Choose?

Based on real enterprise adoption patterns

OpenAI API

Choose OpenAI API if...

  • You're in Data & Analytics (50% of users are)
Try OpenAI API
Claude

Choose Claude if...

  • You want the most validated option (46+ enterprises)
  • You want to try before buying (free trial available)
Try Claude
UsedBy Exclusive Data

Industry Adoption Patterns

See which industries prefer each tool based on real adoption data

OpenAI API

OpenAI API by Industry

OpenAI API is the go-to choice for Data & Analytics (50% of adopters)

Data & Analytics50%
Artificial Intelligence25%
Marketing Tech25%
Claude

Claude by Industry

DevTools & Infrastructure15%
Artificial Intelligence13%
Data & Analytics11%
Sales Tech & CRM7%
Fintech & Payments7%
OpenAI API
+
Claude

1 Companies Use Both

These enterprises have integrated both tools into their stack

OpenAI API vs Claude: Your Questions Answered

Claude leads in enterprise adoption with 46 companies, versus 4 for OpenAI API. This indicates broader market acceptance for Claude.
Yes, 1 companies in our database use both OpenAI API and Claude in their tech stack. This includes MongoDB. Using both tools together is a validated enterprise strategy.
OpenAI API is particularly strong in Data & Analytics (50% of adopters), while Claude dominates in DevTools & Infrastructure (15%). Choose based on your industry's prevailing stack.
For startups, consider: OpenAI API offers flexible pricing, while Claude uses freemium pricing with a free trial available. Both are validated by enterprise use, ensuring scalability as you grow.

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