# Cerebras vs Fireworks AI: who uses which

On usedby, 32 companies use Cerebras and 29 use Fireworks AI. 5 companies use both, including Notion, Quora and Cognition. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 61 of 61 public lines checked.

## Side by side

|  | [Cerebras](https://www.usedby.ai/tools/cerebras.md) | [Fireworks AI](https://www.usedby.ai/tools/fireworks-ai.md) |
|---|---|---|
| Public customers | 32 | 29 |
| Confirmed | 28 | 16 |
| Observed | 4 | 13 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Artificial Intelligence (8), Biotech & Pharma (2), DevTools & Infrastructure (2) | DevTools & Infrastructure (6), Artificial Intelligence (3), HealthTech & Digital Health (1) |
| Category | LLM Inference | LLM Inference |
| Security | SOC 2 Type II ([trust.cerebras.ai](https://trust.cerebras.ai/), checked 2026-10-07) | SOC 2 Type II, HIPAA, ISO 27001, ISO 27701, ISO 42001 ([trust.fireworks.ai](https://trust.fireworks.ai/), checked 2026-10-07) |
| Data processing terms | A data processing agreement is available. ([trust.cerebras.ai](https://trust.cerebras.ai/), checked 2026-10-07) | A data processing agreement is available. ([trust.fireworks.ai](https://trust.fireworks.ai/), checked 2026-10-07) |
| Free trial | Free trial or free plan available. ([cerebras.ai](https://www.cerebras.ai/pricing), checked 2026-10-07) | — |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Notion](https://www.usedby.ai/companies/notion.md) |
| [Quora](https://www.usedby.ai/companies/quora.md) |
| [Cognition](https://www.usedby.ai/companies/cognition.md) |
| [NinjaTech AI](https://www.usedby.ai/companies/ninjatech-ai.md) |
| [Lovable](https://www.usedby.ai/companies/lovable.md) |

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