Kimi K3

Kimi K3 is an open-weight model from Moonshot AI, released July 16, 2026. It ranks #30 of 48 models on the Vals Index with 50.30%. Its best result is #5 of 91 on SAGE.

Release Date: Jul 16, 2026

Developer Moonshot AI Β πŸ‡¨πŸ‡³
Context Window 1M
Max Output Tokens 1M
Token Costs (in/out) $3.00/15.00
Weights Open
Input Modalities

Accuracy

50.30 % Β± 0.99

Cost / Test (Vals Index)

$ 6.439

Latency

68 min 25 s

Vals Index
BenchmarksAccuracyRankings

50.30%

Β±0.99
30/48

20.88%

14/24

16.10%

Β±4.10
54/77

75.24%

Β±5.56
8/47

66.68%

Β±2.87
20/74

53.11%

Β±0.37
33/78

10.50%

Β±5.38
9/13

46.15%

Β±3.46
16/78

49.36%

Β±2.20
23/107

88.05%

Β±1.98
15/109

66.34%

Β±0.91
35/98

87.00%

Β±3.38
11/50

52.78%

Β±3.41
5/91

68.20%

Β±1.21
12/50

33.37%

Β±3.39
13/69

75.72%

Β±0.84
12/145

18.24%

Β±3.92
14/25

84.97%

Β±2.75
15/112

72.59%

Β±1.61
9/27

92.93%

Β±1.31
12/138

48.94%

Β±9.82
26/44

87.19%

Β±0.97
18/143

86.21%

Β±0.41
16/151

87.97%

Β±0.32
22/138

88.15%

Β±0.78
11/93

2.00%

Β±0.99
12/64

93.40%

Β±1.11
8/88

35.83%

Β±2.19
18/18

17.17%

Β±0.51
30/48

1.43%

Β±1.43
37/41
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : Moonshot AI
Temperature: 1
Top P: 0.95
Top K: Default
Max Output Tokens: 1,048,576
Reasoning Effort: max

Compared with

Updates

Jul 16, 2026

We evaluated Moonshot AI’s Kimi K3 on the Vals Index.

We evaluated Kimi K3 with temperature 1, up to 262k output tokens, and max-effort reasoning. Kimi K3 supports a 1M-token context window, image inputs, and tool calling.

Congrats to the Moonshot AI team on the release!