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AI Glossary

AI terms in plain English. Someone said a word at you in a meeting — look it up and get on with your day.

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Model Serving & Economics

• Closed model
• Compute efficiency
• Cost per million tokens
• Cost per request
• Expert model
• Fallback model
• Frontier model
• Hosted model
• Inference cost
• Inference endpoint
• Input tokens
• Latency budget
• Mixture of expertsMoE
• Model router
• Model serving
• Observability
• Open-source model
• Open-weight model
• Output tokens
• Proprietary model
• Routing model
• Service-level agreementSLA
• Small language modelSLM
• Token cost
• Uptime