Does 01.AI Yi have a free tier?
New accounts carry a small trial credit (third-party trackers record ¥10 at 5 RPM), and yi-lightning's ¥0.99/M list price is close to free anyway — the billing page is authoritative.
01.AI Yi: get an API key and write fiction with it on your phone
yi-lightning still serves at a floor price of ¥0.99 per million tokens; but 01.AI pivoted to enterprise business in 2025 and the open platform stopped at the yi-lightning generation (16K context) — treat it as a budget spare, not a daily driver. This page is the BYOK quick answer for 01.AI Yi: key steps, direct console and pricing links, and the app-side notes that matter. Verified 2026-07-18.
Two links up front: get your key at the official console and check rates on the official pricing page. Prices and free quotas move; the official pages are authoritative.
What does it power inside Foreverse?
The factory preset declares 1 modality flag for 01.AI Yi. The models actually available come from the live catalog fetched in-app — catalogs move fast, and the flag only means the protocol wiring is ready.
| Modality | Used for |
|---|---|
| Text | Continuation · roleplay chat · agent |
How do I get a 01.AI Yi API key?
- Register and sign in at platform.lingyiwanwu.com.
- Open the workbench → API key management → create, and copy the key.
- Prepay on the top-up page; new accounts usually carry a small trial credit, so test before you pay.
Key in hand: three steps to connect
- Open the app's Settings → AI models & services and find 01.AI Yi in the list (one of 62 presets, with logo and search).
- Paste the key and tap the connectivity test — it fires one real request to verify key and network, and pulls back the model list while it's at it.
- Enable the models you want, then set per-modality defaults (text, image, speech, and video each get their own); continuation, chat, and listening route through them from then on.
The one universal host pitfall: the API host must include its full version prefix (this provider's exact form is in the notes below) — the app never appends /v1 for you.
01.AI Yi-specific notes
The preset host is https://api.lingyiwanwu.com/v1. The open platform is in low-maintenance mode (the catalog hasn't moved in a long while) and the 16K window fills up fast in long chats — pull the models list before wiring it in.
FAQ
Where does the key live once I paste it into the app?
It's stored on your device only, under system-level encryption — never uploaded or synced to any Foreverse server. Requests go straight from your phone to the provider's official endpoint with zero markup. To revoke access, delete the key in the provider's console.