MODELS / XIAOMI

MiMo V2.5 Pro UltraSpeed

MiMo-V2.5-Pro-UltraSpeed is Xiaomi’s ultra-fast, text-based flagship reasoning model, pairing a trillion-parameter model with a 1,048,576-token context window and generation speeds of roughly 500–1,000 tokens per second. It supports deep thinking, tool calling, streaming…

TEXTREASONINGREASONINGTOOL-USEIMPLICIT-CACHING
1.0M
CONTEXT WINDOW
131.1K
MAX OUTPUT TOKENS
$1.30
INPUT PRICE / 1M TOKENS
$2.61
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/xiaomi/mimo-v2.5-pro-ultraspeed",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything MiMo V2.5 Pro UltraSpeed supports, in one table.

MODEL ID
blackboxai/xiaomi/mimo-v2.5-pro-ultraspeed
DEVELOPED BY
Xiaomi
MODEL TYPE
Text
RELEASED
Jun 8, 2026
CONTEXT WINDOW
1.0M
MAX OUTPUT TOKENS
131.1K
INPUT MODALITIES
text
OUTPUT MODALITIES
text
INPUT PRICE
$1.30 / 1M tokens
OUTPUT PRICE
$2.61 / 1M tokens
CACHE READ
$0.011 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Enterprise · single-tenant
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning