Leon vs Speech To Speech
Both are Grade C and 2.2 points apart, so choose on what you weigh most. Speech To Speech leads on transparency.
🧠 Leon is your open-source personal assistant.
Leon doesn't lead on any scored dimension in this pair.
Build voice agents with open-source models
Choose Speech To Speech if transparency matters most.
- +1.8Transparency: OSSF Scorecard 6.6 against 4.5
Where they differ
2 dimensions identical: Identity 10.8 · Maintenance 20.0 · Full evidence table
An independent, evidence-based trust comparison of Leon and Speech To Speech, two Voice & Conversational projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Full evidence
| Signal | Leonleon-ai/leon | Speech To Speechhuggingface/speech-to-speech |
|---|---|---|
| HVTrust score | 61.0 | 63.2 |
| Evidence grade | C | C |
| Coverage grade | C | C |
| Overall rank | #661 | #584 |
| Rank in Voice & Conversational | #6 | #5 |
| GitHub stars | 17.6k | 13.5k |
| Last updated | today | today |
| Build provenance | No | No |
| OSSF Scorecard | 4.5 / 10 | 6.6 / 10 |
| License | MIT | Apache-2.0 |
| Downloads | — | — |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 10.3 | 9.9 |
| Identity & provenance / 18 | 10.8 | 10.8 |
| Transparency / 17 | 12.3 | 14.1 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 10.2 | 9.9 |
| Runtime capability surface (full matrix) | ||
| MCP server | — | — |
| External providers | 5 — Anthropic, DeepSeek, Groq, … | 2 — OpenAI, OpenRouter |
| Requires API keys | No | Yes |
| Plugin surface | plugins | — |
| Provenance drift | — | — |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →