Terms of Service

Effective Date: January 17, 2026
Last Updated: January 17, 2026

These Terms of Service ("Terms") govern your access to and use of the Sigma5C AI Ultra Hub platform, including our applications, APIs, software, tools, documentation, and related services (collectively, the "Services").

By accessing or using the Services, you agree to be bound by these Terms. If you do not agree, do not use the Services.

If you are using the Services on behalf of an organization, you represent that you have authority to bind that organization, and "you" refers to that organization.

1. Definitions

"Sigma5C," "we," "us," or "our" means Sigma5C Corp, a Delaware C Corp.
"User" means an individual who accesses or uses the Services.
"Customer" means an organization or individual that has an account with us.
"Customer Content" means any data, prompts, text, files, images, audio, video, code, or other materials submitted to the Services.
"Output" means content generated by the Services in response to Customer Content.
"AI Models" means machine-learning or artificial-intelligence systems used to generate Outputs.
"Documentation" means user guides, technical docs, and policies we publish.
"Usage Data" means telemetry, logs, and analytics derived from use of the Services.

2. Eligibility and Account Registration

2.1 Eligibility

You must be at least 18 years old (or the age of majority in your jurisdiction) to use the Services.

2.2 Account Responsibility

You are responsible for:

Providing accurate account information
Maintaining the confidentiality of credentials and API keys
All activity that occurs under your account

You must notify us promptly of any unauthorized access or security breach.

3. Scope of Services

Sigma5C AI Ultra Hub provides access to AI-powered tools that may include:

Conversational and agent-based AI
Document ingestion and retrieval
Multimodal processing (text, image, audio, etc.)
APIs and developer tools
Data marketplace and dataset access
Enterprise orchestration and automation features
MCP (Model Context Protocol) servers

We may modify, add, or remove features at any time. Some features may be subject to additional terms.

4. Customer Content and Output

4.1 Ownership

You retain ownership of Customer Content.
Subject to these Terms, you own the Outputs generated for you.

4.2 License to Sigma5C

You grant Sigma5C a limited, non-exclusive, worldwide license to process Customer Content solely to:

Provide and operate the Services
Maintain security and reliability
Comply with legal obligations

4.3 AI Training and Improvement

      AI Training Policy: Sigma5C does not use Customer Content to train or improve AI models unless you explicitly opt in through account settings. We may use aggregated, de-identified Usage Data to improve system performance and reliability.
    

4.4 Output Limitations

Important: Outputs are generated probabilistically and may be inaccurate, incomplete, or outdated. Outputs should not be relied upon as professional, legal, medical, or financial advice. You are responsible for reviewing and validating Outputs before use.

5. Acceptable Use Policy

You agree not to use the Services to:

Violate any law or regulation
Infringe intellectual property or privacy rights
Generate or distribute malware or exploits
Engage in fraud, deception, or impersonation
Produce content that is unlawful, violent, or abusive
Attempt to reverse engineer, extract, or clone models
Bypass rate limits, safeguards, or access controls
Use Outputs to build or train competing AI systems
Generate content that exploits or harms minors
Conduct unauthorized security testing

We may suspend or terminate access for violations.

6. API and Developer Usage

If you use Sigma5C APIs:

You must follow published rate limits and technical requirements
You may not resell or sublicense the APIs without permission
You may not cache Outputs beyond allowed limits (if specified)
You are responsible for securing API keys
You must include appropriate attribution where required

7. Fees, Billing, and Taxes

7.1 Fees

Some Services require payment. Pricing, usage limits, and billing cycles are described at signup or in an order form.

7.2 Billing

Fees are billed in advance unless otherwise stated
Usage-based fees are billed in arrears
All fees are non-refundable except as required by law

7.3 Taxes

You are responsible for applicable taxes, excluding taxes on Sigma5C's income.

8. Confidentiality

Each party agrees to protect the other's confidential information and use it only to fulfill obligations under these Terms.

Confidential information does not include information that is:

Publicly available
Independently developed
Rightfully received from a third party

9. Security

Sigma5C implements administrative, technical, and organizational measures designed to protect Customer Content, including:

Encryption in transit and at rest
Access controls and authentication
Regular security assessments
Incident response procedures

However, no system is perfectly secure, and you acknowledge residual risk.

10. Third-Party Services and Integrations

The Services may integrate with third-party platforms (including AI model providers). Your use of those services is governed by their terms, and Sigma5C is not responsible for third-party services.

11. Intellectual Property

11.1 Sigma5C IP

Sigma5C retains all rights to:

The Services
AI Models and algorithms
Software, architecture, and Documentation

Except for the rights expressly granted, no license is implied.

11.2 Feedback

If you provide feedback or suggestions, Sigma5C may use them without restriction or obligation.

12. Suspension and Termination

12.1 By You

You may stop using the Services at any time. Termination does not relieve payment obligations incurred before termination.

12.2 By Sigma5C

We may suspend or terminate access if:

You violate these Terms
Your use poses security or legal risk
Required by law

12.3 Effect of Termination

Upon termination:

Your right to use the Services ends
We will delete or return Customer Content per our Privacy Policy
Provisions that should survive termination will remain in effect

13. Disclaimers

THE SERVICES AND OUTPUTS ARE PROVIDED "AS IS" AND "AS AVAILABLE." SIGMA5C DISCLAIMS ALL WARRANTIES, INCLUDING: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ACCURACY OR RELIABILITY OF OUTPUTS.

14. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW: SIGMA5C WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES. SIGMA5C'S TOTAL LIABILITY WILL NOT EXCEED THE AMOUNT PAID BY YOU IN THE 12 MONTHS PRECEDING THE CLAIM.

15. Indemnification

You agree to indemnify and hold harmless Sigma5C from claims arising out of:

Your Customer Content
Your use of the Services
Your violation of these Terms or applicable law

16. Governing Law and Dispute Resolution

These Terms are governed by the laws of the State of Delaware, excluding conflict-of-laws principles.

Any dispute will be resolved exclusively in the courts of Delaware, unless otherwise agreed in writing.

17. Changes to These Terms

We may update these Terms from time to time. Material changes will be notified via the Services or email. Continued use after changes constitutes acceptance.

18. General Provisions

Entire Agreement: These Terms constitute the entire agreement between you and Sigma5C regarding the Services.
Severability: If any provision is found unenforceable, the remaining provisions remain in effect.
Waiver: Failure to enforce a provision does not waive our right to enforce it later.
Assignment: You may not assign your rights under these Terms without our consent.
Force Majeure: Neither party is liable for delays caused by events beyond reasonable control.

19. Contact Information

Sigma5C Corp
Delaware C Corp
Email: info@sigma5c.com
Website: https://sigma5c.com