Groq vs OpenAI API — LLM Inference Speed & Cost

Groq targets low-latency inference on open models with its LPU hardware; OpenAI offers frontier models. How the two APIs differ.

GroqOpenAI

Feature Comparison

FeatureGroqOpenAI
Inference speedLow latency (LPU, vendor-claimed)Fast
Free tierGenerousLimited
Open source models✅ Llama, Mixtral, Gemma❌
Fine-tuning❌✅
API compatibilityOpenAI-compatibleNative
Context window128K tokens200K tokens
Vision support❌✅
API pricingPricing changes — check the providerPricing changes — check the provider

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