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.
Decision Guide
Which One Should You Choose?
Based on real enterprise adoption patterns

Choose Claude if...
- You want the most validated option (46+ enterprises)
- You want to try before buying (free trial available)
UsedBy Exclusive Data
Industry Adoption Patterns
See which industries prefer each tool based on real adoption data

Claude by Industry
DevTools & Infrastructure15%
Artificial Intelligence13%
Data & Analytics11%
Sales Tech & CRM7%
Fintech & Payments7%

OpenAI API by Industry
OpenAI API is the go-to choice for Data & Analytics (50% of adopters)
Data & Analytics50%
Artificial Intelligence25%
Marketing Tech25%


1 Companies Use Both
These enterprises have integrated both tools into their stack
Claude vs OpenAI API: Your Questions Answered
Claude has higher enterprise adoption with 46 companies using it, compared to 4 for OpenAI API. This suggests stronger market validation for Claude.
Yes, 1 companies in our database use both Claude and OpenAI API in their tech stack. This includes MongoDB. Using both tools together is a validated enterprise strategy.
Claude is particularly strong in DevTools & Infrastructure (15% of adopters), while OpenAI API dominates in Data & Analytics (50%). Choose based on your industry's prevailing stack.
For startups, consider: Claude offers freemium pricing with a free trial, while OpenAI API uses competitive pricing. Both are validated by enterprise use, ensuring scalability as you grow.
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