The right voice.
First try.
Stop testing voice AI combinations manually. VoiceForge benchmarks STT + LLM + TTS stacks automatically so you can ship with confidence.
Free for up to 10 benchmarks/month. No credit card required.
Recommended Stack
40% faster latency, 43% lower cost than your current setup
Trusted by voice AI teams at leading companies
Every voice AI team
wastes months on this.
50+ configurations. Manual testing. Comments like # untested and # may not work. You ship and pray.
# Real production code. Yes, really.
if voice_config == "thai14":
stt = "typhoon" # untested
tts = "cartesia"
elif voice_config == "thai15":
stt = "elevenlabs" # may not work
tts = "cartesia"
# ... 11 more configs
# Which is best? Nobody knows.Three steps to the
perfect stack.
Define
Set your language, use case, latency targets, and budget. Takes 30 seconds.
Benchmark
VoiceForge runs 50+ STT+LLM+TTS combinations against your criteria automatically.
Deploy
Get ranked results with data. Apply the winning config with one click.
Everything you need to
ship with confidence.
Optimize
Find the best combination
Test 50+ STT+LLM+TTS stacks automatically. Get ranked results based on latency, quality, cost, and your specific language.
Config
Version control for voice
Track every change to your voice stack. Diff versions, rollback instantly, manage configs across environments like Git.
Test
Validate before deploy
Automated testing for latency P95, naturalness (UTMOS), language consistency. Catch regressions before production.
Multi-Language
30+ languages supported
Built-in support for Thai, Japanese, Korean, Vietnamese, Arabic, and 25+ more. Language-specific quality metrics included.
Enterprise Ready
SOC 2, SSO, audit logs
SOC 2 Type II certified. SAML SSO, role-based access, complete audit trails. Deploy on your own infrastructure.
Analytics
Real-time monitoring
Production dashboards for latency, quality degradation, cost trends. Get alerted before your users notice issues.
Every major provider.
One benchmark.
We integrate with 18+ voice AI providers across the full pipeline. New providers added monthly.
Speech-to-Text
+ more coming soon
Language Models
+ more coming soon
Text-to-Speech
+ more coming soon
Results that speak
for themselves.
Lower latency
Time to optimize
Accuracy improvement
Cost reduction
Loved by voice AI
teams worldwide.
“VoiceForge cut our voice AI evaluation from 3 months to 2 days. We found a stack that was 40% cheaper and sounded better than what we had.”
Sarah Chen
Head of Voice AI, FinServ Global
“We were manually testing 15 different STT+TTS combos for Thai. VoiceForge tested 50+ in minutes and found one we hadn't even considered.”
Tanakorn P.
CTO, VoiceBot Asia
“The version control for voice configs is a game changer. We can now roll back to any previous configuration instantly when something breaks.”
James Hartley
VP Engineering, CallStream
Simple, transparent
pricing.
Start free. Upgrade when you need more.
Starter
For individual developers exploring voice AI.
- 10 benchmarks/month
- 3 provider integrations
- Basic analytics
- Community support
- Single language
Pro
For teams shipping voice AI to production.
- Unlimited benchmarks
- All provider integrations
- Version control & rollback
- Automated CI/CD testing
- 30+ languages
- Priority support
- Team collaboration (5 seats)
Enterprise
For organizations with advanced requirements.
- Everything in Pro
- Unlimited seats
- SOC 2 compliance
- SAML SSO
- Dedicated support
- Custom integrations
- On-prem deployment
- SLA guarantee
Frequently asked
questions.
VoiceForge runs your prompts through every combination of STT, LLM, and TTS providers you select. We measure latency (P50, P95, P99), audio quality (UTMOS score), language accuracy, cost per call, and more. Results are ranked by your priority weighting.
Ready to stop guessing?
Join 200+ teams who've eliminated voice AI trial and error.
Free tier available. No credit card required.