RikkaHub

An Android chat client speaking the OpenAI-compatible protocol — built for mobile.

Install

Channel	Method
Official site (recommended)	rikka-ai.com download page
Google Play	Store page
APK	`arm64-v8a` APK from official release channels

Many forks of RikkaHub circulate online — download only from the official channels above to protect your privacy.

Open RikkaHub → Settings → Providers.
Add a provider, type OpenAI-compatible.
Fill in:
- Name: ByteSeek
- API address: https://tokens.byteseek.ai/v1
- API Key: your sk- key
Fetch the model list and tick what you need.
Back in the chat view, pick a ByteSeek model.

Provider fields (mobile)

Field	Value
Provider type	OpenAI
Name	Your choice, e.g. `ByteSeek`
API Base URL	`https://tokens.byteseek.ai/v1`
API Key	Your `sk-` key
Models	Tap + on the "Models" page to fetch or add IDs

After saving, choose a ByteSeek model in the selector at the top of the chat.

RikkaHub has a dedicated image tab: pick an image model from your group and enter a prompt. Available models per the model plaza.

Mobile image generation at a glance

Switch the model selector to gpt-image-2;
Send a scene description in the chat box; the image appears in the conversation;
Long-press to save to the gallery.

Symptom	Fix
401	Mobile keyboards love sneaking in spaces — re-paste the key
Models won't load	Confirm the address includes `/v1`; verify the key from a desktop browser
403	Model not in group, see Error Codes