| Dataset | Customer Conversation | |
| Model Name | Perplexity | Epsilon (ε) |
| ClearView OpenLlama 3B | 1.16 | NA |
| Masked OpenLlama 3B | 2.83 | NA |
| DPSGD OpenLlama 3B | 4.87 | 1 |
| SecureNLP OpenLlama 3B | 4.49 | 1 |
| ClearView OPT 2.7B | 1.36 | NA |
| Masked OPT 2.7B | 2.65 | NA |
| DPSGD OPT 2.7B | 5.64 | 0.3 |
| SecureNLP OPT 2.7B | 5.34 | 0.3 |