Moonshot AIopen weightsCurrentReasoning

Kimi K3

Name: Kimi K3
Author: Moonshot AI

2.8T MoE, 896 experts; weights released Jul 27, 2026 under a custom licence with revenue-share above $20M/yr. The strongest open model on most boards.

Released

Jul 16, 2026

Price in / out

$3 / $15

Blended $/1M

Context

Parameters: 2.8T / 104B active. License: Kimi K3 License.

Benchmark scoresvs Kimi K2.7 Code

Benchmark	Score	Δ vs prior	Rank (current)	Configuration	Source
Terminal-Bench 2.1	80.9%	+13.9	#6 of 22	leaderboard	benchlm.ai ↗
SWE-bench Verified	93.4%	—	#1 of 8	Vals AI run · independent run	morphllm.com ↗
GPQA Diamond	93.5%	+3.9	#5 of 21	leaderboard	benchlm.ai ↗
Humanity's Last Exam	43.5%	+8.5	#14 of 31	no tools; Moonshot reports 56.0 with tools · lab-reported	kimi.com ↗
ARC-AGI-2	60.4%	—	#8 of 9	leaderboard	benchlm.ai ↗
MMLU-Pro	88%	—	#4 of 12	Vals AI run, max reasoning · independent run	vals.ai ↗
Artificial Analysis Intelligence Index	57.1	+15.1	#2 of 16	leaderboard	benchlm.ai ↗
LMArena Text	1476	—	#3 of 4	max · leaderboard	benchlm.ai ↗

Version

$ in / out

Terminal-Bench

SWE-bench

GPQA

HLE

ARC-AGI-2

AIME

Kimi K2Superseded

$0.6 / $2.5

—

65.8%

—

Kimi K2.5Superseded

$0.6 / $2.5

41.9%

76.8%

87.6%

30.1%

—

95.8%

Kimi K2.6Superseded

$0.6 / $2.5

53.6%

80.2%

90.5%

34.7%

—

96.4%

Kimi K2.7 Code

$0.6 / $2.5

67%

—

89.6%

35%

—

Kimi K3

$3 / $15

80.9%

93.4%

93.5%

43.5%

60.4%

—

Kimi K3

Benchmark scoresvs Kimi K2.7 Code

Kimi versions

Compare

Shipping with it?

Current open-weight peers

Version	Released	$ in / out	Terminal-Bench	SWE-bench	GPQA	HLE	ARC-AGI-2	AIME
Kimi K2Superseded	2025-07-11	$0.6 / $2.5	—	65.8%	—	—	—	—
Kimi K2.5Superseded	2026-01-27	$0.6 / $2.5	41.9%	76.8%	87.6%	30.1%	—	95.8%
Kimi K2.6Superseded	2026-04-20	$0.6 / $2.5	53.6%	80.2%	90.5%	34.7%	—	96.4%
Kimi K2.7 Code	2026-06-15	$0.6 / $2.5	67%	—	89.6%	35%	—	—
Kimi K3	2026-07-16	$3 / $15	80.9%	93.4%	93.5%	43.5%	60.4%	—