Two Xiaomi models, compared on listed price, real workload cost, context and capabilities.
The short answer
MiMo V2.6 Pro lists lower input and output prices.
MiMo V2.6 Pro reads cached input for less ($0.004/M against MiMo V2.6 Pro UltraSpeed's $0.036/M), which decides the bill for agents that resend long context.
Xiaomi's flagship open-weights omnimodal model, a 1.02T-total, 42B-active mixture-of-experts with a 1M window. It replaces the text-only MiMo V2.5 Pro and adds image, video and audio input.
Pick it if
you want Xiaomi's strongest model for agent, coding and computer-use work
you need image, video or audio input on a 1M window
you want MIT-licensed weights you can self-host
Skip it if
you only need Flash-level quality; Flash scores close to Pro on most maker-reported rows at a third of the price
The API-only UltraSpeed tier of MiMo V2.6 Pro, billed at ten times the Pro rate. Same 1M window and omnimodal input; Xiaomi publishes no separate UltraSpeed weights and sells it real-time only, with no batch tier.
Pick it if
a person is waiting on the reply and latency is worth ten times Pro's price
you want Pro-family omnimodal input on a 1M window
Skip it if
you run background or batch work; standard Pro costs a tenth as much
FAQ
Which is cheaper, MiMo V2.6 Pro or MiMo V2.6 Pro UltraSpeed?
MiMo V2.6 Pro lists lower input and output prices. On a coding-agent session (2M tokens in, 60,000 out) MiMo V2.6 Pro costs $0.92 and MiMo V2.6 Pro UltraSpeed $9.22.
Can I switch between MiMo V2.6 Pro and MiMo V2.6 Pro UltraSpeed mid-task?
Yes. In an Octomind session, /model octohub:mimo-v2.6-pro and /model octohub:mimo-v2.6-pro-ultraspeed switch models without losing the conversation, so you can draft on one and review on the other.
Try either model
Switch between models inside the same Octomind session.