This technical assessment provides an evidence-based analysis of AI inference / LLM providers. In contrast to commercial review sites, this framework prioritizes empirical analysis via independent security audits, public source code availability, and operational transparency focused on privacy.
Our evaluation considers:
1. Code Transparency: Public availability of source code and model weights
2. Independent Verification: Third party review and documentation
3. Architectural Verifiability: Fact or trust
4. Organizational Transparency: Public disclosure of ownership and policies
5. Privacy Architecture: Technical implementation and training defaults
| Rank | Service | Source Available | Proof | Anonymous Use | Self-Hostable | No Training on Data | No Correlation |
|---|---|---|---|---|---|---|---|
| 1 | Self-Hosted Open-Weights |
Yes | Yes (you control) | Yes | Yes | Yes | Yes |
| 2 | Lumo (Proton) |
~ Mixed (clients open; backend/models not fully public) | Yes | No (Proton account required) | No | Yes | ? |
| 3 | Venice AI |
Mixed (open models; platform proprietary) | Yes | Yes (no-login free tier) | No | Yes | ? |
| 4 | Hugging Face Endpoints |
Yes | Yes | No | Yes | Yes | ? |
| 5 | AWS Bedrock |
Yes (mixed) | Yes | No | No | Yes | ? |
| 6 | Google Vertex AI |
No | Yes | No | No | Yes (restricted) | ? |
| 7 | Azure OpenAI |
No | Yes | No | No | Yes | ? |
| 8 | Meta Llama API |
Yes (open weights) | Yes | No | Yes | Yes | ? |
| 9 | Together AI |
Yes (mostly open) | Yes | No | Yes | Yes (configurable) | ? |
| 10 | OpenAI API/Team/Enterprise |
No | Yes | No | No (limited) | Yes (Enterprise/API) | ? |
| 11 | Mistral |
Yes (mixed) | Yes | No | Yes | Yes (Enterprise) | ? |
| 12 | Cohere |
No | Yes | No | No | No (opt-out required) | ? |
| 13 | Claude (Anthropic) |
No | Yes | No | No | No (Consumer) / Yes (Enterprise) | ? |
The following approach represents complete control over AI inference. External providers cannot train on your data by design.
These providers attempt to architect systems to minimize data exposure (but still require trust):
These providers do not train on enterprise/API data by policy, verified through documentation and compliance frameworks. Note: These are managed cloud services and cannot be self-hosted.
All rely on trust in infrastructure, operations teams, provider honesty, provider logs, and subpoena/LEA exposure.
Providers that train on user data by default; privacy requires configuration:
1. Self-Hosted Open-Weights Models
2. Lumo (Proton)
3. Venice AI
4. Hugging Face Endpoints
5. AWS Bedrock
6. Google Vertex AI
7. Azure OpenAI
8. Meta Llama API
9. Together AI
10. OpenAI API/Team/Enterprise
11. Mistral
12. Cohere
13. Claude (Anthropic)Self-hosting represents the only truly verifiable privacy option for AI inference. All hosted providers, even the most privacy-focused like Lumo and Venice, rely on trust in infrastructure, operations, and policies rather than cryptographically verifiable architecture.
The privacy hierarchy is clear: architectural privacy (self-hosting) > privacy-oriented providers (Lumo, Venice) > enterprise/API tiers with contractual no-training guarantees > consumer services with opt-out training.
For maximum privacy: run open-weights models (Llama, Mistral, Qwen) locally using Ollama, vLLM, or similar frameworks. Everything else requires trust.