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Kimi K2.5

Moonshot AI · 2026-01-27 · 1.1T parameters

Kimi K2.5 is Moonshot AI's open-weight trillion-parameter MoE model with 32B active parameters, released January 2026. It extends Kimi K2 through continued pretraining on approximately 15 trillion mixed visual and text tokens, adding multimodal reasoning for text, image, and video inputs and Agent Swarm capabilities for coordinated multi-agent task execution.

Benchmark scores

BenchmarkScore
AA-LCR65.3
AA-Omniscience Index-8.1
Agent Red Teaming k=100 (CAIS)90.9
AIME 2024 (avg@8)97.5
AIME 2024-202595.6
AIME 202595.8
AIME 2025 (avg@8)93.8
AIME 202695.8
ALE-Bench1279
Antidote: Everyday Edition1005
Apex (MathArena)8.8
Apex Shortlist57.5
APEX-Agents14.4
APEX-Agents-AA11.5
APEX-SWE30.3
ARC-AGI-165.3
ARC-AGI-211.8
Arena Code WebDev — Brand & Marketing1455
Arena Code WebDev — Consumer Product1439
Arena Code WebDev — Content Creation Tools1426
Arena Code WebDev — Data & Analytics1422
Arena Code WebDev — Gaming1425
Arena Code WebDev — HTML1431
Arena Code WebDev — React1428
Arena Code WebDev — Reference-Based Design1438
Arena Code WebDev — Simulations1429
Arena Document (Style Controlled)1435
Arena Image-to-WebDev1441
Arena Text — Business, Management & Financial Ops (No Style Control)1428
Arena Text — Chinese (No Style Control)1501
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