> ## Documentation Index > Fetch the complete documentation index at: https://docs.abstract.inc/llms.txt > Use this file to discover all available pages before exploring further. # Abstract API > One API key for robot action models and LLMs. Abstract serves models over HTTPS at `https://api.abstract.inc/v1`. One API key works for every model. You send the key as a Bearer token. Set up billing, sign in with the CLI, and make a first robot call and a first LLM call. Every endpoint of `api.abstract.inc`, with its request and answer. ## Robot action models A robot model turns one observation into one chunk of actions. An observation is the task as text, recent JPEG frames from each camera, and the robot's state. A chunk is a list of action rows. The robot executes the rows in order, at the model's control rate. Call a robot model with `POST /v1/chat/completions`, one observation per request, or run a whole episode on a WebSocket at `/v1/responses`. `abstract/dreamzero-astra:yam` A DreamZero world action model. Keeps the episode's context on the server. `stealth/picasso:yam` Keeps the episode's context on the server. `allenai/molmoact2:yam` Ai2's MolmoAct2. One frame per camera, no state between requests. `microsoft/rho:yam` Microsoft's Rho-YAM-Box. Predicts Cartesian end-effector targets. `perceptron/isaac-0.5:yam` Perceptron's Isaac 0.5. One frame per camera, no state between requests. `physical-intelligence/pi0.5:yam` A community fine-tune of π0.5. One frame per camera, no state between requests. A robot model id has the form `origin/model:embodiment`. `origin` names who made the weights. `model` names the weights. `embodiment` names the robot they drive. Every served robot model drives a bimanual YAM: two YAM arms, one scene camera, and one camera on each wrist. Abstract returns numbers. It does not move your robot. Check every action against your robot's limits before you execute it. ## LLMs The LLMs speak the OpenAI Responses API at `POST /v1/responses`. An LLM model id has the form `family-version:profile`. The part before the colon names the weights. The part after the colon names the API contract. | Profile | Contract | Model ids | | - | - | - | | `:async` | The request runs in the background. You poll for the result. | `glm-5.3:async`
`deepseek-v4-flash:async` | | `:superfast` | The request completes inline. Streaming is live. | `glm-5.3:superfast`
`deepseek-v4-flash:superfast`
`kimi-k3:superfast` | ## Accounts and spend Every account has a hard monthly spend limit. Each request reserves its maximum cost against that limit before it runs. The request then settles from the usage its answer reports. A request that would cross the limit is refused with `spend_limit_exceeded`. API keys work for inference only after the account has a payment method or credit. Do not send sensitive data until retention controls and their defaults are documented. ## Explore Cameras, state, and action shapes for each model. Run one episode on one socket. Call the LLM models with the OpenAI SDK. Every error code and what to do about it. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.