Model providers ranked by security posture
The companies serving frontier and open models, scored on the same public security posture checks as everyone else.
| Name | Grade | DMARC | SPF | security.txt | llms.txt | Endpoint auth |
|---|---|---|---|---|---|---|
| Mistral AI | B79 | Enforced | Yes | Yes | Yes | — |
| OpenAI | B79 | Enforced | Yes | Yes | No | — |
| Together AI | B79 | Enforced | Yes | Yes | Yes | — |
| xAI | B79 | Enforced | Yes | Yes | No | — |
| Anthropic | C71 | Enforced | Yes | Yes | No | — |
| Groq | C71 | Enforced | Yes | Yes | No | — |
| Cohere | C64 | Enforced | Yes | No | Yes | — |
| DeepSeek | C64 | Enforced | Yes | No | No | — |
| Replicate | C64 | Enforced | Yes | No | Yes | — |
| Hugging Face | D54 | Not enforced | Yes | Yes | No | — |