OpenPipe, a venture-backed startup, operates the OpenPipe fine-tuning platform.

A hosted platform that captures production LLM traces and distills them into smaller fine-tuned models served via an OpenAI-compatible API.

Cloud-hosted at app.openpipe.ai, with an open-source SDK and dashboard component on GitHub.

Launched in 2023 and actively operated through 2026.

Lets teams replace expensive frontier-model calls with cheaper specialized models trained on their own production data.

Captures traces from OpenAI and Anthropic API calls and fine-tunes open models such as Mistral and Llama.

Core platform code is open-source (Apache-2.0 license) on GitHub, but the hosted service is commercial and production request and response data is sent to OpenPipe's cloud for training.