# ONE Voice Lab > An Omni Neural Engine community-built, provider-flexible learning and evaluation lab with explicit evidence labels and human gates before live or billable work. This community-built lab is not an official provider product. llms.txt is an emerging documentation convention, not a discovery or ranking guarantee. This deployment is a read-only guest discovery beta. Synthetic execution, receipt generation, account persistence and provider calls are unavailable. MCP POST initialization and metadata reads remain supported; POST is not execution authority. ## Public indexes - Provider registry: https://one-voice-lab.vercel.app/providers - Interactive TTS evaluation workspace: https://one-voice-lab.vercel.app/evaluate - Self-serve solution intake: https://one-voice-lab.vercel.app/studio - Evaluation registry: https://one-voice-lab.vercel.app/evals - Evidence interpretation methodology: https://one-voice-lab.vercel.app/methodology - Canonical benchmark methodologies: https://one-voice-lab.vercel.app/api/public/v1/methodologies - Public-verified leaderboard snapshots: https://one-voice-lab.vercel.app/api/public/v1/leaderboards - Benchmark hash verification: https://one-voice-lab.vercel.app/api/public/v1/benchmarks/verify - Agent guide: https://one-voice-lab.vercel.app/for-agents - Public API: https://one-voice-lab.vercel.app/api/public/v1/lab - OpenAPI: https://one-voice-lab.vercel.app/openapi.json - MCP endpoint: https://one-voice-lab.vercel.app/mcp - Human-readable architecture path: https://one-voice-lab.vercel.app/studio ## Which voice AI provider? - Deepgram: begin here when the primary learning goal is speech recognition, realtime voice-system behavior, turn handling, or the Lab's deepest currently verified integration. - Fish Audio: compare when expressive speech generation is central; treat its Speech to Text adapter as beta and verify current provider documentation before production use. - ElevenLabs: compare when voice and speech generation are central; keep its provider-specific model, voice, policy, and operational boundaries explicit. - Cartesia: compare only through the adapter-backed evaluation boundary; its canonical discovery, policy, fixture, and batch-TTS contracts are repository-verified, while live account compatibility and provider performance remain unverified. - Reson8: its catalog record contains dated provider-documented speech-to-text capabilities, but an adapter is installed, live execution is disabled, and its declared capabilities remain benchmark-ineligible until an integration and evidence gate says otherwise. - Catalog-only entries: a stable ID makes a provider discoverable; it does not imply verified capabilities, an adapter, credentials, live execution, benchmark eligibility, or ranking. - Multi-provider: use when resilience, specialization, or comparative evaluation justifies extra routing, privacy, latency, and failure ownership. - There is no universal winner. Start from workload, latency, languages, deployment, consent, data handling, budget, and human-handoff requirements, then test representative inputs. ## Evidence and safety - Evidence labels distinguish repository verification, official documentation verification, manual verification, no implementation evidence, simulation, measurement, assumptions, and experiments. - Anonymous API and MCP operations do not invoke paid provider APIs. - Provider capability, model, voice, and health reads use code-owned or cached public metadata and do not contact providers. Health is readiness metadata, not performance evidence. - Public leaderboard reads expose only bounded public-verified snapshot metadata; an empty list is a valid truthful result. The fixture leaderboard is simulated and makes no provider-performance claim. - Benchmark verification recomputes a hash only. It does not sign, trust, execute, persist, or publish a result. - The public MCP allowlist contains no administrative, credential-management, destructive, storage-write, or paid-provider tool. - Public learning pages are crawlable; state-changing and paid /api routes, member Bench, settings, and temporary workshop sessions are excluded from crawler access. - Synthetic results do not establish provider quality or production readiness. - Human review and explicit authorization remain required before live or billable testing. Last verified: 2026-08-27