Xiaomi MiMo: get an API key and write fiction with it on your phone

After the May 2026 permanent price cut, cache-hit input costs ¥0.02/M and the TTS line is free for now — absurdly cheap for turn-based roleplay where the same prefix gets replayed every round. This page is the BYOK quick answer for Xiaomi MiMo: 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 3 modality flags for Xiaomi MiMo. 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
Vision	Image understanding in chat
Speech	Audiobook narration · character voice

How do I get a Xiaomi MiMo API key?

Sign in to platform.xiaomimimo.com with a Xiaomi account (create one at id.mi.com if needed).
For pay-as-you-go: console → API Keys → create (keys start with sk-).
Or subscribe: the Token Plan page issues a dedicated tp- key after purchase. The two key kinds are independent and cannot be mixed.
Keys are visible only at creation — copy immediately.

Key in hand: three steps to connect

Open the app's Settings → AI models & services and find Xiaomi MiMo 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.

Xiaomi MiMo-specific notes

Heads-up: the preset host is the Token Plan China cluster https://token-plan-cn.xiaomimimo.com/v1, which expects a tp- subscription key; with a pay-as-you-go sk- key, change the host to https://api.xiaomimimo.com/v1 — a mismatched pair just returns 401. MiMo is a reasoning model (thinking output on by default), so keep max_tokens ≥ 256; model ids are all lowercase (mimo-v2.5, mimo-v2.5-pro). The app drives MiMo TTS through Xiaomi's native protocol on the same key.

FAQ

Does Xiaomi MiMo have a free tier?

Signup grants track current campaigns: the official changelog records an invite promo granting ¥10 in trial credit on registration (usable against metered calls, Token Plan excluded) — the console shows what's on offer today; the TTS models are free for now, and Token Plan credits burn at 0.8x during Beijing off-peak hours (00:00-08:00).

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.