Moonshot AI / 月之暗面 · Released 2026-10-23

Kimi K3.1 Pro

A post-trained K3 model: Code rollout is dated October 23, the research index October 24. AA text index 55, exact effort unnamed. Distinguish Highspeed access and planned full weights by November 4.

Original model explanation ↗

Where it stands in the leaderboard

Artificial Analysis intelligence comparison

55points

Intelligence Index

Rank 4 among included models

Test configuration: Reasoning version; effort not named in source table

Source read · · v4.3.2

Each model uses its highest tested setting, with fallback conditions retained. Original K3 remains at max44 from its readable individual page; the aggregate page now lists K3.1 Pro separately. Scores use one evaluator. The index mainly evaluates English text tasks; examine Chinese and image capabilities separately.

Source evaluation & rankings ↗

Evaluations: conditions and results

How this capability connects to works and uses

Moonshot AI / 月之暗面 model evolution

  1. Kimi K2.6

    Long-horizon coding and agent work advance with open weights, providing a previous-generation reference for later general models.

    Original release ↗
  2. Kimi K2.7 Code

    The coding branch launches with open weights, exploring longer engineering work and reasoning-token trade-offs.

    Original release ↗
  3. Kimi K3

    Native vision and 1M context reach long-horizon coding and knowledge work; the full weights follow on July 27.

    Original release ↗
  4. Kimi Code → K2.8 Preview

    The standard kimi-for-coding endpoint moves to K2.8 Preview with more efficient reasoning, alongside the K3 flagship.

    Original release ↗
  5. Kimi K3.1 Pro / Highspeed · Code上线

    Code records rollout on October 23, followed by the October 24 research-index entry. Separate1M eligibility, thinking and quotas for Pro/Highspeed; full weights are planned by November 4, not already downloaded.

    Original release ↗