Open-weight agentic reasoner that runs 200+ tool calls without losing the thread.
Kimi is the most quietly innovative frontier model of the cycle: a trillion-parameter mixture-of-experts released with open weights, built specifically for long-horizon agentic work. It holds hundreds of sequential tool calls in a single task, reads enormous documents natively, and costs a fraction of closed frontier models. If you are building agents rather than chatting, this is the one to benchmark against.
Best for
Recommended workflow
Step 1
Start in kimi.com to feel the reasoning style
Step 2
Move to the API for agent workloads
Step 3
Give it tools via MCP and let it run
Step 4
Compare cost-per-task against your closed-model baseline
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