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Best OpenAI Alternatives

4 alternatives to OpenAI in LLM API, compared by pricing, DX grade, security, and vendor lock-in.

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OpenAI

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AI models API

Pricing: paid, from $0/mo
#1

Anthropic

Best coding, longest context, safer outputs

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Price vs OpenAI
Similar pricing
DX Grade
A
Security
A
Lock-in Risk
Low (2/10)
#2

Cerebras

Fastest inference (2000+ tok/s), open models

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Price vs OpenAI
Cheaper (Llama)
DX Grade
B
Security
B
Lock-in Risk
Low (2/10)
#3

Groq

Fast inference on open models, OpenAI-compatible API

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Price vs OpenAI
Cheaper
DX Grade
B
Security
B
Lock-in Risk
Low (2/10)
#4

OpenRouter

Single API for all providers, easy model switching

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Price vs OpenAI
5-15% markup
DX Grade
A
Security
B
Lock-in Risk
Low (1/10)