Reported in recent model launches

These model reports include this benchmark. Their harnesses, task subsets, scoring policies, and resource budgets can differ; follow each report’s evaluation notes before joining the numbers.

What it measures

Kimi’s internal coding evaluation tests workflows selected by the model developer.

How to read the result

Treat the result as a targeted development signal and ask which types of engineering work the task selection emphasizes.

Limits and comparison traps

The reviewed launch does not publish a complete independent replication contract. Provider fallback behavior can also affect comparisons.

Published evaluation

Developer-reported Kimi Code Bench 2.0 scores. This version is separate from Code Bench 3.0 Long-horizon in the K3.1 report. Maximum effort, fallback settings and model versions remain visible in the source model labels.

Where this fits in an evaluation suite

The agent wrapper is part of the system. Pin tools, dependencies, timeouts, tests, and the repository revision. Compare contest coding separately from repository maintenance.

Start with a capability hypothesis, then choose a second test with a different failure mode. Keep the checkpoint, reasoning effort, agent tools, sampling policy, and scoring procedure fixed when measuring a training intervention. Record failures and missing outputs in the denominator.

A reproducible comparison

Developer-reported Kimi Code Bench 2.0 scores. This version is separate from Code Bench 3.0 Long-horizon in the K3.1 report. Maximum effort, fallback settings and model versions remain visible in the source model labels.

Publish the exact run configuration, item coverage, score units, and available uncertainty. If a source supplies only an aggregate or a single run, preserve that limit. A new model name or a rounded score alone does not establish a capability improvement.

PRIMARY EVIDENCE & FURTHER READING

  1. Kimi K3: Open Frontier Intelligence — official model card ↗

    Moonshot AI · 2026

  2. Introducing Kimi K3.1 Pro ↗

    Moonshot AI · 2026

Reviewed 2026-10-27. Explanation and interpretation by RLTasks. Benchmark ownership remains with its original authors.