MiMo V2.6 Pro UltraSpeed | EmpirioLabs AI Docs

Xiaomi · Text Generation

POST /v1/chat/completions

High-throughput build of the trillion-parameter flagship, matching its full-modality reasoning while generating output substantially faster.

At a glance

Field	Value
Model id	`mimo-v2-6-pro-ultraspeed`
Model release date	2026-09-22
Input modalities	Text, Image, Video, Audio
Output modalities	Text
Context window	1M
Weight precision	-
Max output tokens	131,072
Features	reasoning, agentic, vision, audio_in, function_calling, structured_output
Native inference	No
New	Yes
Structured output	JSON Schema
Supported endpoints	`POST /v1/chat/completions`
Alternate model ids	`mimo-v2.6-pro-ultraspeed`, `mimo/v2.6-pro-ultraspeed`, `xiaomi/mimo-v2.6-pro-ultraspeed`

Pricing

Charge	Spec	Rate
Input	per 1M prompt tokens	$21.75
Output	per 1M generated tokens	$43.50

Example request

curl https://api.empiriolabs.ai/v1/chat/completions \
  -H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"model": "mimo-v2-6-pro-ultraspeed", "messages": [{"role":"user","content":"Hello"}]}'

Parameters

Parameter	Type	Required	Default	Description
`enable_thinking`	boolean	no	true	Enable extended thinking mode. Slower but improves reasoning-heavy tasks.
`temperature`	number	no	`0.7`	Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2
`top_p`	number	no	`0.9`	Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1
`max_tokens`	number	no	`4096`	Maximum tokens in the response. · Range: 1 – 131072
`stop`	string	no	-	Up to 4 strings where the model will stop generating further tokens.
`response_format`	enum	no	-	Constrain the output to valid JSON. Use JSON mode for any JSON object, or supply a JSON Schema to force an exact response shape.

Notes

Accepts text, image, video, and audio input and returns text. Thinking is on by default and can be turned off. Priced for latency-sensitive work that needs the flagship at high output speed.

Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/mimo-v2-6-pro-ultraspeed.