# Who uses TypeSafe AI?

2 companies use TypeSafe AI on usedby: 1 confirmed, 1 observed and 0 signals. Customers include Jack & Jill and MotherDuck. Latest check 2026-10-27: 2 of 2 companies checked, from 3 public sources.

> AI models that return typed decisions instead of text

- Category: [Foundation models & model APIs](https://www.usedby.ai/tools/category/foundation-models-llms.md)
- Website: [typesafe.ai](https://typesafe.ai)

## Customers

Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote, a press release, or the company's own public account of using the tool (its own site, or a post by one of its executives, VP or above)), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). A line the company declared to usedby itself, or that it lists as a sub-processor on its own legal page, is marked declared. The first public proof is a relationship-level date, not an adoption date. Relationship labels describe the source's scope. They do not establish current contract, spend or company-wide deployment. The claim permalink identifies the usedby record; the primary source supports the relationship. These two links provide attribution for a summary. Evidence is selected, not exhaustive; missing evidence or a public archive does not establish that none exists. Relationship-level dates are not verified publication dates of the selected source.

| Company | Industry | Proof | First public proof | Source | Relationship | Claim |
|---|---|---|---|---|---|---|
| [Jack & Jill](https://www.usedby.ai/companies/jack-jill.md) | — | Confirmed | — | [typesafe.ai](https://typesafe.ai/blog/jack-jill-jev-case-study), captured 2026-10-27 | Usage described by a public source | [Jack & Jill · TypeSafe AI claim](https://www.usedby.ai/claims/cmvraqmz300j2sa37v4aj3j9o) |
| [MotherDuck](https://www.usedby.ai/companies/motherduck.md) | Data & Analytics | Observed | — | [typesafe.ai](https://typesafe.ai/enterprise), captured 2026-10-27 | Listed as a customer by the vendor | [MotherDuck · TypeSafe AI claim](https://www.usedby.ai/claims/cmvraquua00j7sa37jp5ug9b0) |

## Before you buy

Read on TypeSafe AI’s own pages; the quote was found on the cited page.

| Fact | Value | Source | Checked |
|---|---|---|---|
| Security | SOC 2 Type II | [trust.typesafe.ai](https://trust.typesafe.ai/) | 2026-10-27 |
| Your data | Not used to train models by default. | [typesafe.ai](https://typesafe.ai/legal/privacy-policy) | 2026-10-27 |
| Pricing | Jev 1.14: $0.042 per Mtok | [docs.typesafe.ai](https://docs.typesafe.ai/models.md) | 2026-10-27 |

## Alternatives

Tools of the same or a competing category, from another vendor, ranked by public customers (every proof level, job posts included).

- [Claude](https://www.usedby.ai/tools/claude.md): 179 public customers, 0 shared with TypeSafe AI.
- [Gemini](https://www.usedby.ai/tools/gemini.md): 79 public customers, 0 shared with TypeSafe AI.
- [Baseten](https://www.usedby.ai/tools/baseten.md): 66 public customers, 0 shared with TypeSafe AI.
- [ChatGPT](https://www.usedby.ai/tools/chatgpt.md): 55 public customers, 0 shared with TypeSafe AI.
- [Nebius AI Cloud](https://www.usedby.ai/tools/nebius.md): 50 public customers, 0 shared with TypeSafe AI.

More: https://www.usedby.ai/alternatives/typesafe-ai.md

---
Source: https://www.usedby.ai/tools/typesafe-ai · How we check: https://www.usedby.ai/methodology