Cerebras Explains | What Is Time to First Token?

What is Time to First Token (TTFT)? 🧠 How it works: Time to First Token (TTFT) measures the initial latency before an AI model begins generating its output. It captures the time from when you submit a prompt to the exact millisecond the very first word or token appears on screen—the crucial moment that defines whether an AI feels instant or unresponsive. 🚀 Why speed matters: Minimizing TTFT is critical for high-stakes, real-time user experiences like live customer support agents, interactive coding tools, and low-latency voice assistants. Even if an AI generates tokens fast once started, a high TTFT creates noticeable lag. Balancing fast TTFT with high throughput is essential for delivering seamless, natural AI interactions at scale. 🔔 Subscribe to Cerebras for more deep dives in our "What Is..." AI series! 👉 https://www.youtube.com/@CerebrasSystems?sub_confirmation=1 🔗 Learn more at: https://www.cerebras.ai/glossary/latency-vs-throughput-in-ai 💬 What AI topic or developer tool should we break down next? Let us know in the comments! 👇 #Cerebras #TimeToFirstToken #TTFT #LatencyVsThroughput #AI #AIInference #ArtificialIntelligence #MachineLearning #LLM #SoftwareEngineering #TechExplainer #Shorts