Terms of Service — Version 1.0 (archived)

Version 1.0 · Last updated: 28 September 2026

These Terms of Service ("Terms") govern the use of the System1 Models API, dashboard, MCP server and related services ("Service") at system1models.ai. The Service is provided by productivity-boost.com Betriebs UG (haftungsbeschränkt) & Co. KG, Reichenberger Str. 2, 94036 Passau, Germany, Amtsgericht Passau HRA 12725 ("we", "us"). A German version is available; if the two versions differ, the German version prevails.

1. Business customers only

1.1 The Service is offered exclusively to businesses (Unternehmer within the meaning of § 14 BGB), legal entities under public law and special funds under public law ("Customer"). It is not offered to consumers.

1.2 By creating an account, you confirm that you act in the course of your trade, business or profession, and, if you act for an organisation, that you are authorised to bind it. We may ask for evidence, such as a VAT ID or company register entry, and may refuse or close accounts that do not meet this requirement.

1.3 Conflicting or supplementary general terms of the Customer do not apply, even if we do not expressly object to them.

2. Contract

2.1 The contract is concluded when you create an account and accept these Terms. Each top-up is a separate order that we accept by crediting the amount to your balance.

2.2 We store the text of these Terms. The current version is always available at /legal/terms; all versions are archived at /legal/terms/archive.

3. The Service

3.1 The Service provides typed-decision inference: you send a state (text and, where supported, images) and one or more questions (for example yes/no, multiple choice or score). A model returns a probability for each answer option. The Service does not generate free text.

3.2 The Service accepts requests whose state and questions follow the Jev typed-decision structure. The provider, model IDs, tier selection, authentication, billing, limits and metadata are System1 Models extensions; until an integration test against TypeSafe's documented schema passes, we do not claim byte-for-byte compatibility. Jev is a trademark of TypeSafe AI. System1 Models is not affiliated with TypeSafe AI, and we do not offer TypeSafe's Jev model. We host open-weight models from third-party authors, listed with their licences at /models and /legal/model-licences.

3.3 Tiers. The Customer chooses a tier per API key or per request:

• EU tier: processing only in the European Union on the infrastructure and sub-processors listed at /legal/subprocessors, with priority access to our EU capacity. Request and response content is not stored (see the Data Retention statement).
• Global tier: a lower-priced tier with lower scheduling priority. At present, Global-tier requests are processed exclusively in the European Union, on the same infrastructure and sub-processors as the EU tier. EU-tier requests take priority: at least one slot of the contracted EU base capacity stays reserved for EU-tier traffic, and a Global-tier request may briefly occupy at most one slot, only while no EU-tier request is waiting. When capacity is busy, Global-tier requests may be queued or rejected with a retryable error; rejections of Global-tier requests do not trigger purchases of additional capacity at launch. We will process an API key's traffic outside the EU only after (a) we have announced this at least 30 days in advance, (b) the sub-processor list, the Data Processing Agreement and the Privacy Policy have been updated, and (c) you have explicitly opted in for that key. Without your opt-in, all your keys remain EU-only.

The Data Processing Agreement applies to both tiers.

3.4 We may change, add or retire models, features and the API with reasonable notice. We give at least 30 days' notice before retiring a model or making a backward-incompatible API change, except where a change is required for legal or security reasons.

3.5 Free test credits, beta features and models marked "preview" are provided without any availability commitment and may be changed or ended at any time.

4. Accounts and API keys

4.1 You must give accurate account information and keep it up to date.

4.2 You are responsible for keeping your API keys confidential and for all use made with your keys until you revoke them in the dashboard. Tell us without undue delay at info@productivity-boost.com if you suspect misuse.

4.3 You may give your employees and contractors access, and you may integrate the Service into your own products for your end users. You remain responsible for their use as for your own and must pass on the relevant obligations of these Terms and the Acceptable Use Policy.

5. Prices, prepaid credits and payment

5.1 The Service is paid in advance with prepaid credit. Prices are listed at /pricing, per million input tokens and per model and tier. Prices are net; VAT is added where applicable. For customers in other EU member states with a valid VAT ID, the reverse-charge procedure applies.

5.2 The minimum top-up is EUR 10 or USD 10. Payments are processed by Stripe. Each request is charged against your balance at the price that applies when the request is processed. Usage is measured by our systems; your dashboard shows it per request with model, tier, tokens and cost, and shows your current balance.

5.3 As a limited launch offer, we may grant a verified account a one-time promotional test credit of EUR 2, or USD 2.28 for an account billed in USD. The offer is limited to one grant per verified account and per verified email address, including deleted and re-created accounts, and to at most 20 grants per day (UTC) and 100 grants in total. The offer is currently switched off: it does not start automatically when you verify your email address, and verifying it does not entitle you to the credit. While the offer is off, or once a limit is reached, no credit is granted. Promotional credit has no cash value and is not refunded. We may withdraw promotional credit that was obtained by misuse.

5.4 If your balance runs out, requests are rejected until you top up. Your current balance is shown in the dashboard.

5.5 Purchased credit does not expire while your account is open. Used credit is not refunded. Unused purchased credit is refunded on request to the original payment method, minus any payment fees that cannot be recovered. When an account is closed, we refund unused purchased credit automatically.

5.6 We may change prices with at least 30 days' notice by email. Price changes apply to requests processed after the effective date. If you do not accept a change, you may close your account and have your unused credit refunded.

5.7 We issue an electronic invoice or receipt for each top-up.

6. Your content and responsibilities

6.1 "Customer Content" means the data you send to the Service (states, questions, images) and the results returned to you. You keep all rights to Customer Content. We receive only the rights needed to process it to provide the Service.

6.2 You are responsible for having the rights and legal basis to submit Customer Content, including any personal data. When you send personal data to the Service, you act as controller and we act as your processor under the Data Processing Agreement. You may submit personal data to the Service only after you have accepted the Data Processing Agreement in the dashboard; before that, submit no personal data.

6.3 You must comply with the Acceptable Use Policy, which forms part of these Terms and includes the use restrictions of the model authors.

6.4 Results are probabilities, not facts. Models can be wrong, biased or poorly calibrated for your use case. You are responsible for testing the results for your purpose, for keeping appropriate human oversight, and for any decision you make or automate with them, including your obligations under Art. 22 GDPR and the EU AI Act (Regulation (EU) 2024/1689). You must not use the Service as the sole basis for decisions with legal or similarly significant effects on individuals.

7. Availability and support

7.1 We provide the Service on a best-effort basis and publish availability and latency targets in our Service Level Targets. The targets describe our goals; they are not a guaranteed service level and do not give rise to service credits, unless we agree otherwise in writing.

7.2 Planned maintenance is announced on status.system1models.ai in advance where possible.

7.3 Support is provided by email at info@productivity-boost.com on German business days.

8. Suspension

8.1 We may temporarily suspend access, fully or for individual API keys, if (a) there is a reasonable suspicion that the Service is being used in breach of these Terms or the Acceptable Use Policy, (b) use endangers the security or stability of the Service or other customers, or (c) we are required to by law or by an authority. We limit the suspension to what is necessary, inform you without undue delay, where legally permitted, and restore access once the reason no longer applies.

8.2 We may apply rate limits to protect the Service. Any rate limits in effect are stated in the API documentation.

9. Warranty

9.1 We provide the Service with the care of a prudent business. Because the Service consists of statistical models, we do not warrant that results are correct, complete or suitable for a particular purpose.

9.2 You must report defects in text form with a description that allows us to reproduce them. We will remedy defects within a reasonable time. Strict liability under § 536a(1) first alternative BGB for defects that existed when the contract was concluded is excluded.

10. Liability

10.1 We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the German Product Liability Act, and to the extent we have given a guarantee.

10.2 In cases of slight negligence, we are liable only for breaches of an essential contractual obligation (an obligation whose fulfilment makes proper performance of the contract possible in the first place and on whose fulfilment the Customer may regularly rely). In that case our liability is limited to the damage that is typical and foreseeable for this type of contract. Per calendar year, this liability is limited to the amounts the Customer paid for the Service in the twelve months before the event causing the damage, and to at least EUR 1,000.

10.3 Otherwise, our liability for slight negligence is excluded.

10.4 The limitations above also apply to the personal liability of our employees, representatives and agents.

10.5 Liability under the Data Processing Agreement and under Art. 82 GDPR is governed by the statutory rules, subject to this section 10 to the extent the law allows.

11. Indemnity

The Customer indemnifies us against third-party claims, including fines by authorities, arising from Customer Content or from the Customer's use of the Service in breach of these Terms, the Acceptable Use Policy or applicable law, provided the Customer is responsible for the breach. This includes reasonable costs of legal defence.

12. Confidentiality

Both parties keep confidential the non-public information they receive from the other party in connection with the contract and use it only for the contract. This does not apply to information that is public, was lawfully known before, is independently developed, or must be disclosed by law or by order of an authority. Customer Content is always treated as confidential.

13. Term and termination

13.1 The contract runs for an indefinite period. The Customer may terminate at any time by email to info@productivity-boost.com. We may terminate with 30 days' notice by email.

13.2 Both parties may terminate for good cause without notice. Good cause for us includes, in particular, serious or repeated breaches of the Acceptable Use Policy, or payment fraud.

13.3 On termination, we refund unused purchased credit (section 5.5), except where we terminate for good cause caused by the Customer and have a counterclaim; in that case we may set off our claims. We delete account data as described in the Privacy Policy, subject to statutory retention periods.

14. Changes to these Terms

14.1 We may change these Terms where this is necessary because of changes in law or case law, requirements of authorities, security needs, or technical changes to the Service, and where the change does not shift the balance between our and your obligations to your disadvantage. We will send the new version to you by email at least six weeks before it takes effect. If you do not object in text form before the effective date, the new Terms apply. We will point out this consequence and your right to object in the notice. If you object, either party may terminate the contract with effect from the date the change takes effect, and we refund unused purchased credit.

14.2 Changes that materially reduce your rights, in particular regarding the scope of the Service, liability, refunds or data protection, require your explicit consent. Price changes are governed by section 5.6.

15. Final provisions

15.1 German law applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).

15.2 If the Customer is a merchant (Kaufmann), a legal entity under public law or a special fund under public law, or has no general place of jurisdiction in Germany, the exclusive place of jurisdiction for actions brought by the Customer against us arising from or in connection with this contract is Passau, Germany; we may also bring actions at the Customer's general place of jurisdiction.

15.3 The Customer may assign rights under this contract only with our consent. § 354a HGB remains unaffected.

15.4 If a provision of these Terms is or becomes invalid, the rest of the Terms remain valid. The statutory provisions apply in place of the invalid provision.

15.5 Documents that form part of the contract, in this order of precedence: (1) any individual written agreement, (2) the Data Processing Agreement for the processing of personal data, (3) these Terms, (4) the Acceptable Use Policy, (5) the price list at /pricing.