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KAT-Coder-Pro V2

Kuaishou · 2026-03-25

KAT-Coder-Pro V2 is Kuaishou's proprietary API deployment of the KwaiKAT team's KAT-Coder-V2 agentic coding model, exposed by StreamLake under the model ID kat-coder-pro-v2. Its Specialize-then-Unify post-training paradigm independently develops SWE, WebCoding, Terminal, WebSearch, and General experts with supervised fine-tuning and reinforcement learning before consolidating them into one model through on-policy distillation.

Benchmark scores

BenchmarkScore
AA-LCR66.0
AA-LCR v1.173.0
AA-Omniscience Index-22.5
Artificial Analysis Agentic Index15.5
Artificial Analysis Coding Index59.5
Artificial Analysis Intelligence Index33.7
Artificial Analysis Omniscience Accuracy21.5
Artificial Analysis Omniscience Hallucination Rate56.0
Artificial Analysis Progress Index v1270
BuseyBench SVG3.4
Capability149.1
CritPt (avg@5)0.0
GDPval-AA v2843
GDPval-AA v2 (normalized)20.3
GDPval-AA v2.1742
GPQA Diamond (Artificial Analysis avg@5)85.5
Humanity's Last Exam (Text-Only)16.1
IFBench (Artificial Analysis avg@5)66.7
ObviousBench61.8
SciCode (Artificial Analysis avg@3)38.3
SnakeBench Average Apples7.6
SnakeBench Best Apples16.0
SnakeBench Rating27.0
SnakeBench Total Apples76.0
SnakeBench Win Rate80.0
Terminal-Bench 2.170.0
Terminal-Bench Hard49.2
τ²-bench (Telecom)89.5
𝜏³-Banking4.5
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