Open-Source Alternatives to ElevenLabs / Cloud Speech API
Based on our dataset, the self-hostable open-source alternatives to ElevenLabs / Cloud Speech API are Kokoro-FastAPI / OpenedAI Speech. The ElevenLabs / Cloud Speech API plan we benchmark is Pro ($99/mo character quota).
Data last updated . How we check.
Quick comparison
| Alternative | License | RAM in starter config | Needs Postgres / Redis | Migration |
|---|---|---|---|---|
| Kokoro-FastAPI / OpenedAI Speech | Apache-2.0 | 1024 MB | No / No | Instant (Change base_url in OpenAI SDK) |
Kokoro-FastAPI / OpenedAI Speech
OpenAI-compatible drop-in local TTS & Whisper STT server that runs fast even on CPU/VPS
- 82M parameter Kokoro TTS sounds studio-grade on CPU
- 100% compatible with `/v1/audio/speech` endpoint
- Unlimited audio generation for $0
Docker image ghcr.io/remsky/kokoro-fastapi-cpu:latest. GitHub: remsky/Kokoro-FastAPI (6.4k stars when our data was last updated). Website: https://github.com/remsky/Kokoro-FastAPI
Switching from ElevenLabs / Cloud Speech API
- Pick an alternative above and open its comparison page for the cost breakdown.
- Generate a free starter
docker-compose.ymlin the stack builder. - Test it on a small server with a copy of your data before moving the team over.
- Check the migration notes in the table, and the official docs of the tool you pick.
More detail: Replace ElevenLabs / Cloud Speech API guide.
FAQ
What are the open-source alternatives to ElevenLabs / Cloud Speech API?
In the StackSwitcher dataset, the self-hostable open-source alternatives to ElevenLabs / Cloud Speech API are Kokoro-FastAPI / OpenedAI Speech.
Which ElevenLabs / Cloud Speech API plan does StackSwitcher compare against?
We benchmark ElevenLabs / Cloud Speech API Pro ($99/mo character quota). The main pain point we note: Generating audiobooks, podcasts, or voice agent responses burns through character quotas at $99-$330/mo.
How much RAM does Kokoro-FastAPI / OpenedAI Speech need when self-hosted?
Our starter Docker config budgets 1024 MB of RAM for Kokoro-FastAPI / OpenedAI Speech. Real needs depend on your usage.
Config templates are MIT licensed and provided "AS IS", with no warranty of any kind and no liability. Prices and specs are informational estimates from our dataset, so check the vendor and project sites before you decide. See the Terms & No Warranty disclaimer.