# Claude vs TypeSafe AI: who uses which

On usedby, 182 companies use Claude 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: 158 of 185 public lines checked.

## Side by side

|  | [Claude](https://www.usedby.ai/tools/claude.md) | [TypeSafe AI](https://www.usedby.ai/tools/typesafe-ai.md) |
|---|---|---|
| Public customers | 182 | 3 |
| Confirmed | 95 | 1 |
| Observed | 39 | 1 |
| Signals (job posts) | 48 | 0 |
| Top industries of customers (every proof level) | DevTools & Infrastructure (28), Artificial Intelligence (27), Fintech & Payments (18) | Data & Analytics (1), DevTools & Infrastructure (1) |
| Category | AI assistants | Foundation models & model APIs |
| Security | SOC 2 Type II, ISO 27001, ISO 42001, HIPAA, FedRAMP, Cyber Essentials ([trust.anthropic.com](https://trust.anthropic.com/), checked 2026-10-20) | SOC 2 Type II ([trust.typesafe.ai](https://trust.typesafe.ai/), checked 2026-10-27) |
| Data processing terms | A data processing agreement is available. ([trust.anthropic.com](https://trust.anthropic.com/), checked 2026-10-20) | — |
| Free trial | Free trial or free plan available. ([claude.com](https://claude.com/pricing), checked 2026-10-26) | — |
| Integrations | Jira, Confluence, Bitbucket, Loom ([claude.com](https://claude.com/marketplace/connectors-plugins), checked 2026-10-26) | — |
| Pricing | Free: $0; Max: from $100 Per month ([claude.com](https://claude.com/pricing), checked 2026-10-26) | Jev 1.14: $0.042 per Mtok ([docs.typesafe.ai](https://docs.typesafe.ai/models.md), 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, Claude | Proof, TypeSafe AI | First public proof, Claude | 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.

- Claude: [Spellbook](https://www.usedby.ai/case-studies/spellbook-claude.md): **10x**: “Cuts the time to complete an agreement 10x, from roughly 10 hours of lawyer work to about one” (captured by usedby 2026-10-30)
- Claude: [Pictet](https://www.usedby.ai/case-studies/pictet-claude.md): **700 people**: “Gave around 700 people access to Claude Code and Claude Cowork to date” (captured by usedby 2026-10-30)
- 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/claude-vs-typesafe-ai · How we check: https://www.usedby.ai/methodology