AxForge offering
When this offering is available: Piper behind the OpenAI-compatible /v1/audio/speech endpoint, served from systems AxForge owns in Stockholm. Fast CPU synthesis (text in, audio out) with zero prompt retention.
Check the console for current access, prices and availability.
Why AxForge
| OpenAI-compatible /v1/audio/speech | The standard speech shape at https://api.axforge.ai/v1 with the model name piper, so the official OpenAI SDKs work by changing base_url. |
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| Never queues behind GPU work | Piper is a fast CPU synthesizer. Synthesis does not queue behind GPU inference workloads, which keeps text-to-speech a lightweight endpoint. |
| Zero prompt retention | The text you send and the audio we return are processed in memory in Stockholm, Sweden. Not written to disk, not logged, not retained, never used for training. |
Specifications
| Model | Piper: text-to-speech, fast CPU synthesis |
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| API model name | piper |
| Endpoint | POST /v1/audio/speech |
| Compute | CPU, so synthesis does not queue behind GPU inference |
| Hardware | Systems owned and operated by AxForge in Sweden |
| Region | Stockholm, Sweden (eu-se-1) |
| Price | €2.95 / 1M characters (launch pricing) |
Piper catalogue reference: specifications and requirements. List prices in EUR.
How it works
| 1 | Confirm this offering is available in the console before following the API setup steps below; otherwise add a public request. A request does not activate an endpoint. |
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| 2 | Sign in to AxForge. Your API key is created in the console. |
| 3 | Set base_url to https://api.axforge.ai/v1 in the OpenAI SDK you already use. |
| 4 | POST /v1/audio/speech with model piper, a voice id and your input text. |
| 5 | Write the returned audio to a file (speech.wav) and play it. |
FAQ
Yes. It is the standard /v1/audio/speech shape at https://api.axforge.ai/v1, with the model name piper, so the official OpenAI SDKs work by changing base_url.
Piper is a fast CPU synthesizer. Synthesis does not queue behind GPU inference workloads, which keeps text-to-speech a lightweight endpoint.
In Stockholm, Sweden (eu-se-1), on hardware AxForge owns and operates. TLS terminates in the EU.
No. Requests are processed in memory under the zero-retention policy: the text you send and the audio we return are not written to disk, not logged, not retained, and never used for training.
When available, check current pricing in the console. €2.95 per million characters (launch pricing). For committed volume, talk to an engineer.