# Fireworks AI vs Together AI: who uses which

On usedby, 29 companies use Fireworks AI and 31 use Together AI. 3 companies use both, including Quora, Cognition and Cursor. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-05: 57 of 60 public lines checked.

## Side by side

|  | [Fireworks AI](https://www.usedby.ai/tools/fireworks-ai.md) | [Together AI](https://www.usedby.ai/tools/together-ai.md) |
|---|---|---|
| Public customers | 29 | 31 |
| Confirmed | 16 | 16 |
| Observed | 13 | 15 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | DevTools & Infrastructure (6), Artificial Intelligence (3), HealthTech & Digital Health (1) | Artificial Intelligence (7), DevTools & Infrastructure (2), HealthTech & Digital Health (2) |
| Category | LLM Inference | LLM Inference |
| Security | SOC 2 Type II, HIPAA, ISO 27001, ISO 27701, ISO 42001 ([trust.fireworks.ai](https://trust.fireworks.ai/), checked 2026-10-07) | SOC 2 Type II, ISO 27001 ([trust.together.ai](https://trust.together.ai/), checked 2026-10-07) |
| Data processing terms | A data processing agreement is available. ([trust.fireworks.ai](https://trust.fireworks.ai/), checked 2026-10-07) | A data processing agreement is available. ([trust.together.ai](https://trust.together.ai/), checked 2026-10-07) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Quora](https://www.usedby.ai/companies/quora.md) |
| [Cognition](https://www.usedby.ai/companies/cognition.md) |
| [Cursor](https://www.usedby.ai/companies/cursor.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Together AI: [Runware](https://www.usedby.ai/case-studies/runware-together-ai.md): **70%**: “70% cost reduction for customers switching to open-source models on Together GPUs” (captured by usedby 2026-10-03)
- Together AI: [Scaled Cognition](https://www.usedby.ai/case-studies/scaled-cognition-together-ai.md): **3–4 months**: “3–4 months of cumulative research time recovered” (captured by usedby 2026-10-03)

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