Models
Claude Fable 5.1 available. Anthropic’s newest top-tier model can be used
through the
model parameter. It is not in the default picker: an
organization admin enables it under Org Settings > Models.DocsAPI
The API reference is regenerated from the server’s own spec. Every
endpoint page now matches what the API actually serves, and the core
developer and agent endpoints carry real request bodies and query parameters
in the playground instead of bare paths. New groups cover Actions, Search,
Automations, Sites, and Notifications.New guides for building with agents. Agents
overview, Agent runs,
Skills and subagents, and Unattended
runs replace the old Chat guide, which documented
endpoints that no longer exist. Runs are started with
POST /api/agent/message and polled with GET /api/agent/status/{call_id}; a turn
already in flight can now be steered rather than only queued behind.New guides for Actions and Search, and
a rewritten Tools guide covering sandbox paths, named
sandboxes, and the best-effort behavior of multi-edit.DocsFiles
Developer documentation and AI-native pages. The API reference now covers
76+ endpoints with request and response schemas and an interactive playground.
Every page has a contextual menu to copy it as Markdown, open it in Claude,
ChatGPT, or Perplexity, connect it to Cursor or VS Code as an MCP server, or
download the OpenAPI spec, and every endpoint ships runnable curl, Python, and
JavaScript samples generated from the spec.Shareable forms. Build a form as a
.form workspace file, share a public
link, and collect submissions back into the workspace as a CSV.Models
GLM 5.2 is available. Select it with the
model parameter on chat and
agent runs, alongside the existing model list.Workspaces
Duplicate a workspace. Copy a workspace and all of its files in the
background, with progress shown while large copies run.
SDK
TypeScript SDK.
@arg-ai/sdk wraps authentication, retries, the Run
lifecycle, and resilient file uploads, so the golden path is a handful of typed
calls instead of raw curl.Models
Claude Fable 5 enabled. The model is selectable through the
model
parameter and across the in-product model pickers.Automations
Automation triggers. Run an automation on a schedule (with time zones), an
inbound webhook, a file change, or a notification, instead of only on demand.
API
API keys can list organization workspaces. An org-bound API key can now
enumerate the workspaces it has access to through the Workspaces API.