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Inference

Running a trained model to get output. It happens every time you send a prompt.

Training builds the model and inference uses it. Each request you send is one inference run, and the cost mostly tracks how many tokens go in and come out.

Two phases set the delay. Prefill reads your whole prompt at once, which is quick but grows with prompt length. Decode writes the answer one token at a time and decides how long you wait for a long reply. Time to first token and total time therefore behave differently, and streaming makes an answer feel faster without making it faster.

Tagged

Where this comes up

Prompts, configs and tutorials in the library that touch this term.

  • GuideUniversal

    Ways to use AI without paying

    The free ways to use AI, where each one runs out, and a simple test for whether free is enough for your task.

    Education0067AI Place Hub
  • ConfigLlama

    Modelfile for a consistent local persona

    A Modelfile that fixes the system prompt and sampling parameters of a local model, so the same behaviour holds in every session and you stop retyping…

  • Local setupLlama

    Running your first local model

    Ollama on an ordinary laptop, from install to a model answering in about ten minutes. It also shows how to work out which size fits before you…

    Tested on Llama 3.2 8B · May 2026

  • ToolUniversalSERVICEFree tier, usage-based paid tier

    Groq Cloud

    Hosted inference on custom LPU hardware, built for speed. Open-weight models answer at a token rate that makes streaming feel close to instant.

    Tested on Llama 3.3 70B · Jun 2026

  • ToolUniversalSERVICEUsage-based, pay per token; dedicated endpoints billed hourly

    Together AI

    Hosted inference for open-weight models such as Llama, Mixtral and Qwen, plus fine-tuning, at a lower price than most proprietary-model APIs.

    Tested on Llama 3.3 70B · Jun 2026

  • ToolUniversalAPPFree, open source; optional paid cloud hosting

    AnythingLLM

    A desktop app for chatting with your own documents against a local or hosted model. The retrieval pipeline is built in, so you do not assemble it…

    Tested on Llama 3.3 70B · Jun 2026