ARC 2024.02.28.00 (Pro & Runtime)

(Autonomous Robot Control Software)
Make robots with the easiest robot programming software. Experience user-friendly features that make any robot easy to program.

Change Release Notes

We're excited to announce a critical update for all Synthiam ARC users utilizing Bing Speech Recognition in their projects. This release addresses a significant issue identified in the wake word speech recognition engine.

Issue Overview

Previously, it was found that the wake word speech recognition engine did not terminate as expected after closing a robot skill. This oversight resulted in the unintended operation of two Bing speech recognition systems simultaneously, leading to potential performance degradation and unnecessary resource utilization.

Discovery and Resolution

The issue was uncovered during the development of ARCx, Synthiam's forthcoming next-generation robot platform. Our commitment to delivering a seamless and efficient user experience drove us to promptly investigate and rectify this flaw.

This update ensures that the wake word speech recognition engine is properly terminated upon closing a robot skill. This fix is crucial for maintaining optimal system performance and avoiding the unnoticed consumption of system resources.

Ongoing Support

As we continue to develop ARCx, we remain dedicated to supporting the current version of ARC. Users can expect ongoing updates, including bug fixes and security enhancements, ensuring a reliable and secure environment for developing and deploying robot skills.

Update Instructions

Please follow the standard update procedure within the ARC software to apply this update. Navigate to the 'Check for Updates' section under the 'Help' menu. Following the prompts will ensure your software is updated to the latest version, incorporating this critical fix.


We appreciate the patience and support of our user community as we strive to improve and evolve the Synthiam ARC platform. Your feedback is invaluable to us and plays a crucial role in shaping the future of robotic development.

For any questions or further assistance, please reply to this post or visit our community forums.

Thank you for choosing Synthiam for your robotic development needs. We look forward to continuing to provide you with cutting-edge tools and support.

ARC Downloads

ARC Free


  • Includes a free 3rd party plugin robot skill per project
  • GPT-Powered AI support
  • Free with trial limitations

For schools, personal use & organizations. This edition is updated every 6-12 months.



Only $8.99/mo

  • 2 or more PCs simultaneously
  • Includes unlimited skills
  • Premium support discount
  • And much more

Experience the latest features and bug fixes weekly. A Pro subscription is required to use this edition.



  • Load and run any ARC project
  • Operates in read-only mode
  • Unlimited robot skills
  • Early access fixes & features

Have you finished programming your robot? Use this to run existing ARC projects for free*.

  • Minimum requirements are Windows 10 or higher with 2+gb ram and 500+MB free space.
  • Recommended requirements are Windows 10 or higher with 8+gb ram and 1000+MB free space.
  • ARC Free known-issues can be viewed by clicking here.
  • Get more information about each ARC edition by clicking here.
  • See what's new in the latest versions with Release notes.

Compare Editions

Feature ARC
  Get ARC for Free View Plans
Usage Personal
Premium support $14.99/ticket $9.99/ticket
Feature requests Yes
Early access to new features & fixes Yes
Simultaneous microcontroller connections* 1 255
Robot skills* 20 Unlimited
Skill Store plugins* 1 Unlimited
Cognitive services usage** 10/day 6,000/day
Auto-positions gait actions* 40 Unlimited
Speech recongition phrases* 10 Unlimited
Camera devices* 1 Unlimited
Vision resolution max 320x240 Unlimited
Interface builder* 2 Unlimited
Cloud project size 128 MB
Cloud project revision history Yes
Create Exosphere requests 50/month
Exosphere API access Contact Us
Volume license discounts Contact Us
  Get ARC for Free View Plans
* Per robot project
** 1,000 per cognitive type (vision recognition, speech recognition, face detection, sentiment, text recognition, emotion detection, azure text to speech)


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