Airtop vs Simular Sai

Airtop

• Automating websites and vendor portals that have no API
• Marketing and sales teams doing lead enrichment and campaign work
• Developers adding a cloud browser to agents they already run

Simular Sai

• Recurring tasks in desktop software or portals that offer no API
• People who want automation that keeps running with their laptop closed
• Developers adding computer use to a coding agent through MCP

Airtop

• Usage is metered in credits. The Free plan renews 1,000 a month and allows 1 deployed agent.
• Starter is limited to 3 simultaneous sessions and 10 deployed agents; a custom proxy and dedicated support start at Professional.
• Mark is included from the Professional plan. Free and Starter get a Mark trial of 7 days or until the credits are used.
• A refund of the last charge is offered only within 5 business days and only if no credits were used in that billing period.

Simular Sai

• The free Explore plan has a daily credit allowance whose size the pricing page does not state, and only limited access to a cloud computer.
• On Pay as you go, the $50 a month of credits pays for both AI usage and cloud computer time; heavier use needs top-ups.
• Sai Unlimited costs $500 a month and covers one workspace; additional workspaces are upgraded separately.
• Running Sai on your own device is offered for Mac and Windows, while the cloud computers are Windows or Linux.

Airtop

Agent Builder

Describe a workflow in plain English and Agent Builder builds and tests it, then compiles it into reusable code so the same input gives the same output on each run.

Schedules and triggers

Deployed agents run on a schedule or are started by a webhook or an event in a connected tool, and they are designed to repair a broken run on their own.

Cloud browsers

Agents sign in to websites and portals in browsers hosted in the cloud, with saved login profiles, built-in proxies, CAPTCHA solving and up to 100 parallel sessions.

Integrations and APIs

Prebuilt integrations cover HubSpot, Google Ads, Google Workspace, Slack and Airtable, and agents can call any REST or GraphQL endpoint using keys held in a vault.

Mark

An agent for marketing and sales work that researches your company, plans a go-to-market approach and builds the agents, with contact data and email verification built in.

Use from other platforms

A web agent can run as a step in n8n, Zapier or Make, or be driven from Claude Code and Codex. Developers also get a REST API and Node and Python SDKs.

Simular Sai

Operates real interfaces

Sai sees the screen and clicks and types through browsers, desktop apps, file systems and terminals, so it can handle software that offers no API.

Dedicated cloud computer

Sai works in its own Windows or Linux cloud machine, which keeps your logins, preferences and context between sessions and carries on after you close your laptop.

Bring your own device

Sai can run on your own Mac, Mac mini or Windows machine instead. On Pay as you go, only AI usage is then charged, with no computer time.

Scheduled reruns that reuse steps

A task taught once can be saved as a reusable skill and rerun on a schedule. Simular says the unchanged steps become code, so repeat runs need fewer model tokens.

Approvals and live view

You can watch Sai's computers work, approve its critical steps, and get notified by iMessage, SMS or Telegram when a task needs you.

API and MCP server

The Simular Platform exposes Sai through an API key and an MCP server that coding agents such as Claude Code, Codex and Cursor can call.

Airtop

• Free$0

  1,000 credits a month, 3 simultaneous sessions, 1 deployed agent and a one-time bonus of 10,000 credits.

• Starter$29

  per month, billed monthly, with 30,000 credits

  3 simultaneous sessions, 10 deployed agents and an integrated proxy. Larger credit bundles go up to 150,000 credits for $149 a month.

• Professional$189

  per month, billed monthly, with 225,000 credits

  30 deployed agents, 30 simultaneous sessions, a custom proxy, Mark and dedicated support. Up to 500,000 credits for $380 a month.

• Enterprise$558

  per month, billed monthly, with 775,000 credits

  Unlimited deployed agents, 100 simultaneous sessions, a SOC 2 Type 2 report and Mark. Up to 1,500,000 credits for $999 a month.

• CustomCustom

  Custom credits and simultaneous sessions, volume pricing and Mark included.

Simular Sai

• Explore$0

  A daily credit allowance, limited access to a cloud-based Windows computer, creating and testing workflows, and community support.

• Pay as you go$50

  per month

  50,000 credits a month ($50 of usage) for AI models and computer time, up to 5 cloud computers at once billed only while running, and credit top-ups.

• Sai Unlimited$500

  per month, per workspace

  Unlimited AI usage under fair-use guidelines and an always-on Windows or Linux cloud computer. Heavy use may shift Sai to an efficiency mode.

• EnterpriseCustom

  Everything in Sai Unlimited, plus managed scaling, a dedicated account team, SSO and RBAC, custom integrations and SLA guarantees.

Airtop

• Annual discount

  10% off when paying annually

  The pricing page's Pay annually option gives a 10% discount on paid plans and grants the whole year's credits upfront.

Simular Sai

No public discounts listed.