# OpenAI API vs Runware: who uses which

On usedby, 45 companies use OpenAI API and 20 use Runware. 1 company uses both, including Wix. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-11-13: 64 of 65 public lines checked.

## Side by side

|  | [OpenAI API](https://www.usedby.ai/tools/openai-api.md) | [Runware](https://www.usedby.ai/tools/runware.md) |
|---|---|---|
| Public customers | 45 | 20 |
| Confirmed | 4 | 4 |
| Observed | 33 | 15 |
| Signals (job posts) | 2 | 0 |
| Top industries of customers (every proof level) | Artificial Intelligence (10), DevTools & Infrastructure (5), Marketplace (4) | Artificial Intelligence (12), Marketplace (2), DevTools & Infrastructure (1) |
| Category | Foundation models & model APIs | AI inference & GPU cloud |
| Security | OpenAI API · ISO 27001, ISO 27701 OpenAI API · SOC 2 Type II ([openai.com](https://openai.com/security-and-privacy/), checked 2026-11-13) | — |
| Pricing | gpt-6-astra · standard, short context · Per 1M tokens: $10 input, $1 cached input, $12.50 cache writes, $50 output gpt-6.1-sol · standard, short context · Per 1M tokens: $2 input, $0.10 cached input, $2.50 cache writes, $10 output gpt-6-luna · standard, short context · Per 1M tokens: $0.10 input, $0.01 cached input, $0.125 cache writes, $0.50 output ([platform.openai.com](https://platform.openai.com/pricing/), checked 2026-11-13) | — |

## 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, OpenAI API | Proof, Runware | First public proof, OpenAI API |
|---|---|---|---|
| [Wix](https://www.usedby.ai/companies/wix.md) | Observed | Observed | On or before October 2026 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Runware: [Higgsfield](https://www.usedby.ai/case-studies/higgsfield-ai-runware.md): **four hours**: “by 11pm—just four hours after first contact—they were live and running production traffic” (captured by usedby 2026-11-12)
- Runware: [HeyGen](https://www.usedby.ai/case-studies/heygen-runware.md): **50%**: “Overall cost per image dropped by over 50%, which changed how the team approached product development.” (captured by usedby 2026-11-12)

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Source: https://www.usedby.ai/compare/openai-api-vs-runware · How we check: https://www.usedby.ai/methodology