> ## Documentation Index > Fetch the complete documentation index at: https://fal.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Generations and the media rail > How generations appear in the chat and the media rail, and what you can do with each tile. A generation is one model run's output. Generations appear twice: inline in the chat, at the point where the agent submitted them, and in the media rail on the right. ## In the chat Runs render as cells in a grid. A batch renders as one grid, laid out like a moodboard. In-flight cells show the model name and a cancel button. Completed cells show the media, a media-type badge, and on hover: | Action | Where | | :--------------------- | :---------------------------------------- | | **Retry** | Top left. Runs the same input again | | **Download** | Top right. 3D outputs offer a format menu | | **Copy prompt** | Copies the prompt text | | **Copy input as JSON** | Copies the full model input | A toolbar also appears under a hovered cell. It offers **Attach**, **Quick animate**, **Upscale**, **Make a variation**, **Edit**, and **Details**. A generation cell with its ordinal and model pill, and the hover toolbar beneath it Videos play a preview on hover. Audio renders as a waveform tile. Files that are not media, such as a `.zip` or `.csv`, render as a file card with a download button. Retries are grouped in the same cell. Use **Previous attempt** and **Next attempt** to compare them. A batch of four generations in the chat, with the download button and model pill shown on the hovered cell ## Names and ordinals Each completed output gets an ordinal in the order the runs landed. Your uploads and video sequences do not take an ordinal. When the agent names a batch, each run also gets a readable name, such as `cdg-bag-environments/open-field`. The media viewer header shows both. Use the **Generations** section of the `@` palette to refer to an output in your next message. ## The media rail The rail shows every tile in the chat, or in the whole project when the scope is **Project**. Filter by media type or **Favorites**, and search by prompt, model, or name. The media rail with Media and Context tabs, search, media-type filters, and the Attachments and Outputs sections Tile actions, on hover or in the context menu: | Action | Effect | | :------------------- | :------------------------------------------------------------------------------- | | **Attach to chat** | Adds the tile as an attachment on your next message | | **Favorite** | Pins a heart on the tile. Favorites get their own filter | | **Preview** | Opens the [media viewer](/docs/documentation/agent/generations/media-viewer) | | **Jump to chat** | Scrolls the chat to the turn that made it | | **Remove from chat** | Removes the tile from this chat. This asks for confirmation and cannot be undone | `Cmd+click` (`Ctrl+click`) selects several tiles. An **Attach N** button then attaches all of them. ## Cost The spend chip next to the composer shows the number of generations and the total cost of the chat. Hover it for a breakdown by model or by media type. See [Spending caps](/docs/documentation/agent/spending-caps). ## Request details Open a tile's details to see the model, the endpoint, the request ID, the latency, and the attempt number. Use the request ID when you contact support about a run. ## Errors A failed cell shows a short explanation. The agent repairs and retries most failures on its own. See [Models and generation](/docs/documentation/agent/models-and-generation#errors-you-can-see) for the messages and what they mean.