# ChatGPT vs TypeSafe AI: who uses which

On usedby, 55 companies use ChatGPT and 3 use TypeSafe AI. 1 company uses both, including Linear. 1 of them is known through a job post (the weakest proof) on at least one side. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-11-04: 28 of 58 public lines checked.

## Side by side

|  | [ChatGPT](https://www.usedby.ai/tools/chatgpt.md) | [TypeSafe AI](https://www.usedby.ai/tools/typesafe-ai.md) |
|---|---|---|
| Public customers | 55 | 3 |
| Confirmed | 12 | 1 |
| Observed | 32 | 1 |
| Signals (job posts) | 11 | 0 |
| Top industries of customers (every proof level) | Fintech & Payments (5), Banking & Mortgages (4), DevTools & Infrastructure (4) | Data & Analytics (1), DevTools & Infrastructure (1) |
| Category | AI assistants | Foundation models & model APIs |
| Free trial | Free trial or free plan available. ([chatgpt.com](https://chatgpt.com/pricing/), checked 2026-10-20) | — |
| Integrations | Google Drive, Atlassian, GitHub, Slack, Notion, HubSpot, Shopify, Canva, Dropbox, Stripe, Outlook Email, Asana ([chatgpt.com](https://chatgpt.com/plugins), checked 2026-10-20) | — |
| Pricing | Free: $0 / month; Go: $8 / month; Plus: $20 / month; Pro: from $100 / month; Enterprise: contact sales ([chatgpt.com](https://chatgpt.com/pricing/), checked 2026-10-20) | Jev 1.14: $0.042 per Mtok ([docs.typesafe.ai](https://docs.typesafe.ai/models.md), checked 2026-10-27) |
| Security | — | SOC 2 Type II ([trust.typesafe.ai](https://trust.typesafe.ai/), checked 2026-10-27) |
| Your data | — | Not used to train models by default. ([typesafe.ai](https://typesafe.ai/legal/privacy-policy), checked 2026-10-27) |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, ChatGPT | Proof, TypeSafe AI | First public proof, ChatGPT | First public proof, TypeSafe AI |
|---|---|---|---|---|
| [Linear](https://www.usedby.ai/companies/linear.md) | Signal (job post) | Declared by the company | Publication date unknown (job-post evidence) | On or before November 2026 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- ChatGPT: [BBVA](https://www.usedby.ai/case-studies/bbva-chatgpt-b63f7d.md): **nearly three hours**: “with people saving nearly three hours per week on routine tasks and more than 80% engaging daily.” (captured by usedby 2026-10-18)
- ChatGPT: [Moderna](https://www.usedby.ai/case-studies/moderna-chatgpt-ff7525.md): story without a checked figure. (captured by usedby 2026-10-18)
- TypeSafe AI: [Jack & Jill](https://www.usedby.ai/case-studies/jack-jill-typesafe-ai.md): **88%**: “with 88% lower cost and roughly 50% faster task completion time” (captured by usedby 2026-10-27)

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Source: https://www.usedby.ai/compare/chatgpt-vs-typesafe-ai · How we check: https://www.usedby.ai/methodology