Kimi K2.6

Parameters

1T

Published

Apr 20, 2026

Kimi K2.6 is an AI model developed by Moonshot (China), first published in April 2026. It works in the language domain, on tasks such as language modeling/generation.

Epoch AI has no training-compute estimate for this model. The model has 1,040,000,000,000 parameters.

Access: Open weights (unrestricted). Its weights are openly available. It is built on top of Kimi K2.5. Epoch AI rates the confidence of this record as confident.

Full record

Organization: Moonshot
Country of organization: China
Domain: Language
Task: Language modeling/generation
Parameters: 1,040,000,000,000
Model accessibility: Open weights (unrestricted)
Open weights: Yes
Base model: Kimi K2.5
Epoch confidence: Confident

Benchmark results

01	Vending-Bench 2	Score	6204.6
02	WebDev Arena	Arena Score	1526
03	ALE Bench	Performance	1092.7
04	Epoch Capabilities Index	ECI Score	151
05	OTIS Mock AIME 2024-2025	mean_score	0.96
06	GPQA Diamond	mean_score	0.91
07	SWE-bench Verified	mean_score	0.77
08	WeirdML	Accuracy	0.56
09	SciCode	Score	0.53
10	Cursorbench	Score	0.48
11	FrontierMath	mean_score	0.39
12	SimpleQA Verified	mean_score	0.39
13	Frontierswe	Dominance	0.28
14	Chess Puzzles	mean_score	0.26
15	Apex Agents	Pass@1 score	0.19
16	Exploitbench	Mean capability	0.18
17	Proofbench	Accuracy	0.16
18	FrontierMath Tier 4	mean_score	0.15
19	GDP PDF	GDP.pdf score	0.12
20	Critpt	Accuracy	0.08
21	OSWorld 2	Binary accuracy	0.05
22	Blueprint Bench 2	Score	0.04
23	Gbaeval	Overall score	0.01