Kimi K3

Moonshot · Open weights · Released Jul 16, 2026 · $3 in · $15 out per 1M tokens

64Overall · rank 8

Score by job

77 · rank 7 · 3 of 5 benchmarks

Benchmark	Result	Variant	z
DeepSWE	68.5%	kimi-k3_max	0.73
FrontierCode	44.2%	kimi-k3_unknown	0.48
LMArena Coding	1507 rating	kimi-k3-max	0.80

Not enough data · 1 of 4 benchmarks

Benchmark	Result	Variant	z
APEX-Agents	50.6%	kimi-k3_unknown	-0.16

49 · rank 19 · 3 of 4 benchmarks

Benchmark	Result	Variant	z
GPQA Diamond	93.1%	kimi-k3_max	0.63
ARC-AGI-2	60.4%	kimi-k3_max	-0.16
SimpleBench	60.7%	kimi-k3_max	-0.47

61 · rank 11 · 5 of 5 benchmarks

Benchmark	Result	Variant	z
FrontierMath Tiers 1–3	72.2%	kimi-k3_max	0.29
FrontierMath Tier 4	39.0%	kimi-k3_max	-0.08
OTIS Mock AIME	97.2%	kimi-k3_max	0.41
ProofBench	87.0%	kimi-k3_unknown	1.55
LMArena Math	1494 rating	kimi-k3-max	0.51

68 · rank 12 · 2 of 2 benchmarks

Benchmark	Result	Variant	z
LMArena Creative Writing	1452 rating	kimi-k3-max	0.02
LMArena Instruction Following	1478 rating	kimi-k3-max	0.52

64 · rank 7 · 1 of 1 benchmarks

Benchmark	Result	Variant	z
LMArena WebDev	1660 rating	kimi-k3-max	1.01