Day 0 Support: Xiaomi MiMo V2.6

LiteLLM supports mimo-v2.6-pro and mimo-v2.6-flash on day 0, and prices both on Xiaomi's own endpoint for the first time.

Pricing

Per 1M tokens, Pro is $0.435 input and $0.87 output, Flash is $0.14 and $0.28. V2.6 costs what V2.5 cost; Xiaomi kept the rates and raised the model.

Pro reads cached input at $0.0036, about a 121st of its input rate, where most providers in the same cost map charge a tenth. Cache writes are free for now.

Thinking is on by default

Every V2.6 model reasons unless told otherwise, and Xiaomi controls that with thinking.type rather than reasoning_effort. LiteLLM treats xiaomi_mimo as an OpenAI-compatible provider and does not map thinking for it yet, so pass it through explicitly with allowed_openai_params=["thinking"].

In multi-turn tool calling, the reasoning_content from a prior assistant turn has to go back in the next request or the API returns a 400.

Usage

SDK

from litellm import completion

response = completion(
    model="xiaomi_mimo/mimo-v2.6-pro",
    messages=[{"role": "user", "content": "Refactor this migration script."}],
    thinking={"type": "disabled"},          # on by default
    allowed_openai_params=["thinking"],
)

print(response.choices[0].message.content)

Proxy

model_list:
  - model_name: mimo-v2.6-pro
    litellm_params:
      model: xiaomi_mimo/mimo-v2.6-pro
      api_key: os.environ/XIAOMI_MIMO_API_KEY
      allowed_openai_params: ["thinking"]

  - model_name: mimo-v2.6-flash
    litellm_params:
      model: xiaomi_mimo/mimo-v2.6-flash
      api_key: os.environ/XIAOMI_MIMO_API_KEY

Hit Reload Model Cost Map in the Admin UI, or POST /reload/model_cost_map, to pick the rows up without a redeploy on v1.76.0 and above.

If you are on V2.5

Xiaomi deprecates mimo-v2.5-pro and mimo-v2.5 at 10:00 Beijing time on October 21, 2026.

Feedback

Running MiMo V2.6 through LiteLLM and hitting something unexpected? Share it on GitHub discussions.