# Charles Keith

> Charles Keith writes about voice AI for Voice Agent Weekly and works on fine-tuning open-source voice models. He is based in San Francisco.

- Location: San Francisco, CA
- Writes about: Voice AI, AI voice agents, Open-source speech models, Model fine-tuning

## Articles by Charles Keith

- [Voice AI Market Statistics: 37 Size & Funding Facts for 2026](https://www.voiceagentweekly.com/articles/voice-ai-market-statistics) — Voice AI market size reached $13.2B in 2023 with 23.6% CAGR projected through 2030. 37 statistics on funding, growth, regional adoption and industry spending.

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