reasoning_effort parameter, which accepts three levels - “low”, “high” and “max” - and defaults to “max” when omitted.
reasoning_effort.py
"""
Moonshot Reasoning Effort
=========================
Kimi K3 always reasons before answering. How much it thinks is controlled by the
top-level `reasoning_effort` parameter, which accepts three levels - "low", "high" and
"max" - and defaults to "max" when omitted.
"max" is a strong default - K3 can spend a minute or more thinking before answering a
prompt that does not need it. "high" is the middle ground, and "low" is several times
faster at the cost of shallower reasoning. Use "max" for genuinely hard problems, "high"
for everyday work that still benefits from some thought, and "low" where latency matters
more than depth.
The reasoning is returned as reasoning_content, which `show_full_reasoning=True`
renders alongside the answer.
"""
from agno.agent import Agent
from agno.models.moonshot import MoonShot
# ---------------------------------------------------------------------------
# Deep reasoning - the default, worth it for a hard problem
# ---------------------------------------------------------------------------
deep_agent = Agent(
model=MoonShot(id="kimi-k3", reasoning_effort="max"),
markdown=True,
)
task = (
"A farmer needs to cross a river with a fox, a chicken and a sack of grain. "
"The boat only fits the farmer and one item. The fox cannot be left alone with "
"the chicken, and the chicken cannot be left alone with the grain. "
"Provide a step-by-step solution."
)
# ---------------------------------------------------------------------------
# Balanced reasoning - the middle ground, some thought without the full cost
# ---------------------------------------------------------------------------
balanced_agent = Agent(
model=MoonShot(id="kimi-k3", reasoning_effort="high"),
markdown=True,
)
# ---------------------------------------------------------------------------
# Low reasoning - much faster, for prompts that do not need deep thought
# ---------------------------------------------------------------------------
fast_agent = Agent(
model=MoonShot(id="kimi-k3", reasoning_effort="low"),
markdown=True,
)
# ---------------------------------------------------------------------------
# Run Agents
# ---------------------------------------------------------------------------
if __name__ == "__main__":
deep_agent.print_response(task, stream=True, show_full_reasoning=True)
balanced_agent.print_response(task, stream=True, show_full_reasoning=True)
fast_agent.print_response(task, stream=True, show_full_reasoning=True)
Run the Example
1
Set up your virtual environment
uv venv --python 3.12
source .venv/bin/activate
uv venv --python 3.12
.venv\Scripts\activate
2
Install dependencies
uv pip install -U agno openai
3
Export your Moonshot API key
export MOONSHOT_API_KEY="your_moonshot_api_key_here"
$Env:MOONSHOT_API_KEY="your_moonshot_api_key_here"
4
Run the example
Save the code above as
reasoning_effort.py, then run:python reasoning_effort.py