Google Speech-to-Text v2
Chirp 3 GA (mai 2026) — 125 langues, WER 2.7%, MedASR, offline expansion
Comparative Scores
Architecture
Useful for multilingual GamiWays deployments requiring 100+ language support. EU data residency partially addresses Swiss sovereignty. Not recommended for Phase 1 MVP due to higher latency than Deepgram.
Analysis
Google Speech-to-Text v2 avec Chirp 3 (GA mai 2026) : 2.7% WER EN (Artificial Analysis), 125+ langues, streaming gRPC bidirectionnel. MedASR open-source lancé fin 2025 (domaine médical). Expansion offline majeure (avril 2026). Pas de clonage vocal natif (via Google TTS séparé). RAG via tool calling + Vertex AI Search. Cloud uniquement, pas d'on-premise.
Strengths
- 2.7% WER (Chirp 3, mai 2026) — meilleure précision cloud
- 125+ langues — couverture la plus large
- EU data residency available
- gRPC streaming bidirectionnel
- MedASR open-source (domaine médical)
- Google ecosystem integration (Dialogflow, Vertex AI)
Weaknesses
- ~650ms latence typique (3× Deepgram)
- Cloud uniquement, pas de souveraineté
- Tarification complexe (Chirp 3 = $0.016/min vs Chirp 2 = $0.006/min)
- Pas de clonage vocal natif
- Pas d'open-weights
STT Capabilities
Pricing
$0.016/min (Chirp 3, 0–500k min). $0.006/min (Chirp 2). $0.004/min (standard). Free: 60 min/month.
Sovereignty & Compliance
GCP cloud only.
Data residency: EU region available (Belgium, Netherlands).
Cloud only (GCP). No on-premise.
Google Speech-to-Text v2 — Strategic Positioning
Beyond technical specs: where does this tool sit in the ecosystem, what are the risks and strategic implications for GamiWays?
Google Chirp 2 offers top multilingual accuracy at global scale with extensive compliance certifications — but its cloud-only stance and deep Google Cloud lock-in make it a Phase 1 tool, not a Phase 2 sovereignty choice.
A. Strategic Positioning
Target customer: Enterprise — multilingual, global scale, Google Cloud ecosystem
Chirp 2 model with top multilingual accuracy at global scale — deep Google Cloud integration for enterprise workflows.
B. Competitive Moat
- Chirp 2 — top multilingual accuracy across 100+ languages at global scale
- Deep Google Cloud ecosystem integration — Vertex AI, Gemini Enterprise
- Extensive compliance: SOC2, HIPAA, GDPR, ISO 27001, FedRAMP
Vulnerability: Vendor lock-in risk with Google Cloud. Open-source models catching up. No on-premise option outside specific partnerships.
E. Strategic Questions for GamiWays
Sovereignty fit
EU continental boundary available but cloud-only. Google Cloud dependency creates sovereignty risk for Swiss/EU regulated deployments.
Build vs. Buy
Buy for Phase 1 multilingual requirements. For Phase 2 sovereignty, switch to Whisper/Voxtral self-hosted to eliminate Google dependency.
Lock-in risk
Deep Google Cloud ecosystem integration creates strong lock-in. Switching costs are high if Vertex AI or Gemini are also used.
Roadmap alignment
Good for Phase 1 multilingual transcription. Incompatible with Phase 2 sovereignty requirements without major architectural changes.
Data Freshness
Artificial Analysis STT mai 2026 + Google Cloud docs
Update note: Chirp 3 GA mai 2026 : WER 2.7% EN (Artificial Analysis), 125+ langues. Prix $0.016/min (Chirp 3). MedASR open-source lancé fin 2025. Expansion offline majeure avril 2026. Clonage vocal : NON natif. RAG : via tool calling + Vertex AI Search.