# LLM Inference: the tools companies use

227 companies on usedby use at least one of the 11 tools in this category with a public customer. Nebius AI Cloud leads with 48 companies. Counts are of companies on usedby, not of the whole market. Latest check 2026-10-07: 257 of 273 public lines checked.

> Infrastructure to run models efficiently (Cloud/Hardware)

Family: [Engineering & Data](https://www.usedby.ai/tools/category/engineering-data.md)

## Ranking

Public customers count every public line, job-post signals included; ties share a rank.

| Rank | Tool | Public customers | Confirmed | Observed | Signals |
|---|---|---|---|---|---|
| 1 | [Nebius AI Cloud](https://www.usedby.ai/tools/nebius.md) | 48 | 35 | 13 | 0 |
| 2 | [Baseten](https://www.usedby.ai/tools/baseten.md) | 44 | 23 | 21 | 0 |
| 3 | [Cerebras](https://www.usedby.ai/tools/cerebras.md) | 32 | 28 | 4 | 0 |
| 4 | [Together AI](https://www.usedby.ai/tools/together-ai.md) | 31 | 16 | 15 | 0 |
| 5 | [Fireworks AI](https://www.usedby.ai/tools/fireworks-ai.md) | 29 | 16 | 13 | 0 |
| 6 | [Modal](https://www.usedby.ai/tools/modal.md) | 28 | 14 | 14 | 0 |
| 7 | [AWS Bedrock](https://www.usedby.ai/tools/aws-bedrock.md) | 26 | 20 | 4 | 2 |
| 8 | [CoreWeave](https://www.usedby.ai/tools/coreweave.md) | 18 | 12 | 6 | 0 |
| 9 | [Groq](https://www.usedby.ai/tools/groq.md) | 8 | 0 | 8 | 0 |
| 10 | [fal](https://www.usedby.ai/tools/fal.md) | 6 | 3 | 3 | 0 |
| 11 | [OpenRouter](https://www.usedby.ai/tools/openrouter.md) | 3 | 0 | 3 | 0 |

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Source: https://www.usedby.ai/tools/category/llm-inference · How we check: https://www.usedby.ai/methodology