Cherry Studio
Add Half Off Dev to Cherry Studio as an OpenAI-compatible provider and chat with Claude, GPT and Gemini at half the official price.
Cherry Studio is a multi-provider desktop chat client for Windows, macOS and Linux. Add Half Off Dev once as an OpenAI-compatible provider and the same key opens up Claude, GPT and Gemini inside it, each at half its official price. Create an API key first.
Import in one click#
On API keys, choose Use in tools → Cherry Studio → Open in Cherry Studio. The provider is created in the app for you; Cherry Studio has to be installed. A key you just created is already filled in. For an older key, paste the full key into the dialog, since Half Off Dev keeps only a hash of it.
Manual setup#
Create a provider with these values:
| Field | Value |
|---|---|
| Provider type | OpenAI-compatible (or "New API") |
| API host | https://halfoff.dev (no /v1, the app adds it) |
| API key | your ho-... key |
Then add models by id, for example claude-sonnet-5.5, gpt-6.1-sol and gemini-3.1-pro. The model list has the rest.
Fixing errors#
| What you see | What to do |
|---|---|
401 Invalid or revoked API key | The key was mistyped, cut short or revoked. Paste it again or make a new one. |
404 Model '...' is not available | That id doesn't exist. Copy one from GET /v1/models or the model list. |
404 with /v1/v1/ in the path | The API host ends in /v1. Change it to https://halfoff.dev. |
404 Unknown endpoint | A Cherry Studio feature is calling an API Half Off Dev doesn't serve, such as embeddings. Use Half Off Dev for chat and another provider for that feature. |
402 | The balance is empty or the key has hit its spend cap. See Billing. |
Any other status is explained in Errors.