> ## Documentation Index > Fetch the complete documentation index at: https://docs.workmore.ai/llms.txt > Use this file to discover all available pages before exploring further. # AI > Steps that use a language model to read, write, classify, or decide. Steps that use a language model to read, write, classify, or decide. ## AI / LLM ai.llm · action Call an AI language model to summarize, extract, generate, classify, or analyze data. Use presets for common tasks or provide a custom system prompt. **Settings** | Setting | Required | What it does | | ------------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------- | | Provider | No | Select which LLM provider to use. The credential is resolved from the matching App Management connection (per-canvas default or per-node override). | | Model Tier | No | Choose the model tier based on task complexity. Fast is good for simple tasks, Powerful for complex reasoning. | | Task Preset | No | Select a preset to use an optimized system prompt for common tasks, or choose Custom to write your own. | | System Prompt | No | Custom instructions for the AI. Only used when Task Preset is set to Custom. | | User Message | Yes | The main prompt or question for the AI. Reference upstream data using template syntax. | | Context Data | No | Data from upstream nodes to include in the prompt. Will be serialized and appended to the user message. | **Produces** * `response` — Response * `tokens_used` — Tokens Used * `model` — Model * `duration_ms` — Duration (ms)