Claude APIPaid
Anthropic's AI models via API — excel at long documents, careful reasoning, and following complex instructions.
AI / LLM comparison
Claude API vs OpenAI API
Pricing, pros, cons, and ideal use cases — side by side.
OpenAI APIPaid
The most capable AI models available via API — power your business automations with GPT-4.
At a glance
| Claude API | OpenAI API | |
|---|---|---|
| Pricing | PaidPay-as-you-go. Claude Sonnet roughly $3/1M input tokens. Very competitive pricing. | PaidPay-as-you-go. GPT-4o roughly $5/1M input tokens. Very affordable for SMB usage volumes. |
| Category | AI / LLM | AI / LLM |
| Ideal for | Law FirmsAgenciesAccountantsAny SMB wanting AI features | Any SMB wanting AI featuresLaw FirmsRecruitersAgencies |
Pros & cons
Claude API
Pros
- Excellent at long documents
- Strong instruction following
- Great for legal/compliance
- Competitive pricing
Cons
- Requires technical setup
- Smaller ecosystem than OpenAI
- Newer platform
OpenAI API
Pros
- Most capable models available
- Flexible API
- Good documentation
Cons
- Requires technical setup
- Costs can grow with volume
- Outputs need review
Which should you choose?
Claude API is built around law firms; OpenAI API leans more toward any smb wanting ai features. Shortlist the one whose strengths line up with your biggest constraint.