When should you choose Asteroid?

Regulated back office work is the context and live supervision is required. Deterministic scripts compiled from exploration is what makes this auditable. HIPAA readiness is a hard requirement. Graded by Agentic Index against the same capability axes from each vendor's own published materials. No vendor pays for placement.

When should you choose Twin?

Your team wants to build its own agents without code, across many apps. Plans from Plus at $29 a month, after a 7 day free trial, fit a team starting small. Trigger flexibility across email, call, schedule and webhook fits how work arrives. Graded by Agentic Index against the same capability axes from each vendor's own published materials. No vendor pays for placement.

How much do Asteroid and Twin cost?

Asteroid: Individual is free to start, with pay as you go credit top ups. Startup is $300 a month ($330 of credits) and Scale $1,000 a month ($1,150 of credits). Enterprise is custom.. Twin: Plus $29 a month, Pro $149 a month and Store from $399 a month, with no credits on any plan. A 7 day free trial with no credit card. Enterprise is custom.. Graded by Agentic Index against the same capability axes from each vendor's own published materials. No vendor pays for placement.

Agentic Index

Asteroid vs Twin (2026)

Both vendors last verified September 27, 2026

Both run agents through interfaces with no usable API, and they scale differently. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.

Twin is an autonomous AI employee planning, choosing tools and executing across applications and websites, including a proprietary browser agent for portals, triggered by email, call, schedule or webhook, with approval gates on irreversible actions, and built without code. Asteroid is supervised computer use for regulated back offices, compiling its own deterministic scripts and discovering private APIs, graph based and self healing, HIPAA ready. Choose Twin for building agents without code across many apps. Choose Asteroid for regulated work where every run must be inspectable.

This comparison is published by Agentic Index, an independent agentic AI vendor research platform. Asteroid and Twin are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,084 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded

At a glance

Asteroid

Category: Browser / computer-use agent
Entry price: Individual is free to start, with pay as you go credit top ups. Startup is $300 a month ($330 of credits) and Scale $1,000 a month ($1,150 of credits). Enterprise is custom.
Free or trial: Individual plan starts free with no monthly commitment, and credits are topped up as you go
Pricing confidence: public exact

Twin

Category: Agent builder
Entry price: Plus $29 a month, Pro $149 a month and Store from $399 a month, with no credits on any plan. A 7 day free trial with no credit card. Enterprise is custom.
Free or trial: 7 day free trial on every plan, no credit card required
Pricing confidence: public exact

Keep exploring

Choose Asteroid if

Regulated back office work is the context and live supervision is required.
Deterministic scripts compiled from exploration is what makes this auditable.
HIPAA readiness is a hard requirement.

Choose Twin if

Your team wants to build its own agents without code, across many apps.
Plans from Plus at $29 a month, after a 7 day free trial, fit a team starting small.
Trigger flexibility across email, call, schedule and webhook fits how work arrives.

Feature	A Asteroid	T Twin
Action & orchestration
Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools.
AsteroidIntegrations & Tool Calling Agents act in EHRs, payer portals and desktop apps with credentials held in an organization vault, reach systems through VPNs, call APIs such as SAM.gov directly, and write results back to EHRs and CRMs; each agent profile owns an inbox for login codes and mail. Sourceasteroid.ai/llms.txtread 2026-09-27
TwinIntegrations & Tool Calling More than 5,000 apps connect out of the box through native integrations, agents can connect to any API, and where no connector exists Twin writes the integration itself. Agents read and write in tools such as Gmail, Google Sheets, CRMs and Slack. Sourcetwin.soread 2026-09-27
Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps.
AsteroidWorkflow Orchestration Workflows are graphs of agent nodes and transitions with failure paths, loop backs, handoffs, per node Playwright scripts and batch executions, built in the platform or by Astro from a described process. Sourcedocs.asteroid.ai/llms.txtread 2026-09-27
TwinWorkflow Orchestration Twin turns a goal into an agent that plans and executes the steps. The workspace Orchestrator creates, modifies and coordinates several agents that share context, proposing a plan the user reviews before anything runs. Sourcedocs.twin.so/orchestratorread 2026-09-27
Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools.
AsteroidTriggers & Channel Coverage Workflows run on a repeating cron schedule or a single booked time, start from the API, MCP and Slack, and push execution events to webhooks and Slack with signed payloads; pended prior authorizations are re-checked on schedule. Sourcedocs.asteroid.ai/operate/schedulesread 2026-09-27
TwinTriggers & Channel Coverage Event based triggers start agents when something happens in a connected app (a new message or record), time based triggers run them on a schedule, and the REST API starts them from the customer's backend. Sourcedocs.twin.so/triggersread 2026-09-27
Knowledge & context
Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers.
AsteroidKnowledge Grounding & RAG Prior authorization workflows answer payer clinical questionnaires strictly from the chart material and documentation supplied for each case, and workflows read attached files. That context is assembled for each run, and Asteroid keeps no standing index over the customer's knowledge. Sourceasteroid.ai/llms.txtread 2026-09-27
TwinKnowledge Grounding & RAG Agents use web search, deep research and the tools they connect to per run, and workspace agents share context. There is no maintained index over the customer's own documents. Sourcedocs.twin.so/workspacesread 2026-09-27
Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer.
AsteroidMemory & State Persistence An agent's own files include memory kept beside its nodes in the workflow file tree, and the workspace folder carries state across steps and loop backs inside one run only. Asteroid does not say how agent memory is scoped or how long it lasts. Agent profiles carry browser state, not memory. Sourcedocs.asteroid.ai/llms.txtread 2026-09-27
TwinMemory & State Persistence Run Mode uses the agent's memory from previous builds, and agents in one workspace share context. Twin does not give that memory a scope, a lifetime or a way to review it. Login sessions carried between runs are browser state, not agent memory. Sourcedocs.twin.so/build-vs-runread 2026-09-27
Control & trust
Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls.
AsteroidHuman Oversight & Guardrails Operators watch agents live, pause them and require approval before sensitive steps; workflows carry clinician in the loop checkpoints, a human checkpoint before enrollment submission and a person approving every binder payment, and nodes can ask the user a question. Sourceasteroid.ai/securityread 2026-09-27
TwinHuman Oversight & Guardrails Approvals are a named agent feature beside schedules and webhooks (an agent drafts a review reply and posts it after the user's OK). Browser automation opens a permission dialog showing the plan for the user to approve. The Orchestrator's plan is reviewed before agents are built. Sourcedocs.twin.so/web-agentread 2026-09-27
Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy.
AsteroidSecurity, Identity & Governance Customers manage role based access control and least privilege with granular permissions, and portal credentials are encrypted, revocable and scoped per agent. Asteroid holds SOC 2, with the report in the Trust Center, alongside HIPAA with BAAs and third party penetration testing. Its security page calls the SOC 2 report Type II, while its llms.txt summary says Type I. Sourceasteroid.ai/securityread 2026-09-27
TwinSecurity, Identity & Governance Twin says it is audited and certified without naming a framework, and it links a trust center on app.bastion.tech, but it publishes no named attestation and has no security page. Access control covers only workspaces, API keys and per member credit caps, with no roles or SSO named. Sourcetwin.so/pricingread 2026-09-27
Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior.
AsteroidObservability & Auditability Every action an agent takes is recorded and replayable, with screen recordings, a step by step timeline, the page seen at each step and the reasoning behind each action and transition, plus an activity log with node durations. Sourcedocs.asteroid.ai/build/test-and-publishread 2026-09-27
TwinObservability & Auditability Each run keeps its steps for review (which pages the agent visited and what it captured). The REST API exposes run events, webhooks fire on run.completed and run.failed, and usage tracking shows credit consumption per member and agent. Sourcedocs.twin.so/rest-apiread 2026-09-27
Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting.
AsteroidDeployment & Data Residency Data is hosted in the United States on Asteroid's cloud, the only region offered, and there is no VPC, on premise or self hosted option. The Browser, Linux and Windows sandboxes and VPN access into customer networks are where agents run and how they connect, and none of them places the platform in the customer's own infrastructure. Sourceasteroid.ai/securityread 2026-09-27
TwinDeployment & Data Residency Twin runs agents only in its own cloud, on isolated cloud computers per agent, with nothing to deploy. There is no region choice, residency option or self hosting. Sourcedocs.twin.so/guidelinesread 2026-09-27
Solution readiness
Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value.
AsteroidPrebuilt Agents, Templates & Packs A Workflow Library offers pre built workflow templates across ten categories, mirrored in the docs catalog, such as OIG Exclusion Check, DEA Registration Verification, Eligibility and Benefits Check, Drug Prior Authorization on ePA Portals and Medicare Commission Reconciliation. Each template handles one job. Sourceasteroid.ai/workflow-libraryread 2026-09-27
TwinPrebuilt Agents, Templates & Packs The Employee Library (beta) holds more than 200 ready-made agents shared by the community that a customer can hire as is, such as B2B Prospect Hunter, Niche Content Composer and SaaS Founder Signal Scout, each doing its own job. Agents can be shared publicly or sold through a store. Sourcetwin.so/agentsread 2026-09-27
Platform extensibility
Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys.
AsteroidModel Flexibility & Routing Each node picks a model from Asteroid's own tiers, asteroid-fast, asteroid-balanced and asteroid-max. The changelog names Anthropic, OpenAI and Google models behind prompt tuning and a provider grouped picker, but customers get no list of providers to choose from, so Asteroid decides which providers serve each tier. Sourcedocs.asteroid.ai/llms-full.txtread 2026-09-27
TwinModel Flexibility & Routing The user picks high or low reasoning before a build, and runs use a lighter model. No model provider is named, and there is no provider choice or bring your own model route, so the choice is a cost tier. Sourcedocs.twin.so/build-vs-runread 2026-09-27
APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems.
AsteroidAPIs, SDKs & MCP Extensibility A REST API and SDK deploy, execute and manage agents, with a workflow file representation for version control, and an MCP server at mcp.asteroid.ai builds, executes and debugs agents from a coding assistant. Sourcedocs.asteroid.ai/llms.txtread 2026-09-27
TwinAPIs, SDKs & MCP Extensibility A REST API at build.twin.so with an OpenAPI 3.1 schema and x-api-key authentication creates agents, triggers runs, inspects events and manages API keys. Sourcedocs.twin.so/rest-apiread 2026-09-27
Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment.
AsteroidTesting, Debugging & Optimization Changes run as a draft version before publishing, with version compare and a warning before schema breaking publishes. Astro reads past executions' timelines to name slow or failing nodes and writes improvements back to a draft, so the deployed agent's behavior feeds its next version. Sourcedocs.asteroid.ai/operate/improveread 2026-09-27
TwinTesting, Debugging & Optimization To confirm an agent worked, the user reviews its run steps and outputs, and agents are adjusted through chat. That is debugging after a run, and there is no evaluation harness, test cases or release gate. Sourcedocs.twin.so/troubleshootingread 2026-09-27
Specialist automation
Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone.
AsteroidBrowser & Computer Use Agent nodes with browser_use and computer_use capabilities read the screen and act in payer portals, EHRs and desktop apps inside Browser, Linux or Windows sandboxes the vendor runs, with Playwright scripts replaying proven paths. Sourcedocs.asteroid.ai/concepts/environmentsread 2026-09-27
TwinBrowser & Computer Use The Web Agent controls a browser on an isolated cloud computer dedicated to the agent, handling logins, multi step flows and dynamic pages when a service has no API or the API lacks a scope. Twin calls it the costliest and least reliable mode and recommends APIs first. Sourcedocs.twin.so/web-agentread 2026-09-27

Pricing snapshot

Sourced from the Index pricing dataset · open each vendor's profile for full detail.

Pricing	A Asteroid	T Twin
Entry price Lowest public entry point	Individual is free to start, with pay as you go credit top ups. Startup is $300 a month ($330 of credits) and Scale $1,000 a month ($1,150 of credits). Enterprise is custom.	Plus $29 a month, Pro $149 a month and Store from $399 a month, with no credits on any plan. A 7 day free trial with no credit card. Enterprise is custom.
Pricing confidence How public the numbers are	Public, exact	Public, exact
Billing Primary billing axis	Credits that cover runtime, LLM usage and proxies, bought through pay as you go top ups on the free Individual plan or through a monthly plan that includes more credits than its fee.	A flat monthly fee per plan, with unlimited agents and scheduled runs and no credits to draw down. The plan sets the feature set, and Enterprise terms are custom.
Variable cost Workload / overage exposure	Low variable cost	Medium variable cost
Free tier / trial Try before you buy	Free tierTrial	Free tierTrial
Buying motion Self-serve vs sales call	Self-serve	Self-serve
Pricing verified When this pricing was last checked	Oct 25, 2026	Sep 27, 2026

Product updates

Newest first, each linked to its source.

Asteroid

October 1, 2026 · Security / enterprise

Asteroid merged its Vault and Agent Profiles into one Logins page that holds every account its browser agents sign in as, including groups of interchangeable logins for the same portal.
Source

All Asteroid updates →