Kimi K2.5 specs, prices, where it runs and its benchmark standing

Name: Kimi K2.5
Author: Moonshot AI

open weights · top 10 on 1 of 9 · released Jan 27, 2026

Provider: Moonshot AI
Release date: Jan 27, 2026; Boards
Parameters: 1.03T total; Hugging Face
Modalities: Text, Image to Text; OpenRouter
License: Modified MIT; Hugging Face
Context window: 262K tokens; Pricing
Pricing: $0.49 in / $2.5 out per 1M tokens; All prices
Hosting: 5 priced API routes · Azure OpenAI (31 regions) · OpenRouter · self-host: weights on Hugging Face; Pricing Regions
Hardware: Estimate: about 4083 GB of weights as published (I32), about 1027 GB at 8-bit, about 513 GB at 4-bit, plus memory for the context; Hugging Face config
Weights: Open weights
Benchmarks: 9 boards captured

Rank	Board	Category	Score	Of
15	MultiChallengeChat · as “kimi-k2.5”	Chat	61.4%	35
17	HLEReasoning · as “kimi-k2.5”	Reasoning	24.4%	44
34	Document ArenaVision · as “Kimi K2.5 (Thinking)”	Vision	1,437	40
43	Vision ArenaVision · as “Kimi K2.5 (Thinking)”	Vision	1,252	85
56	ARC-AGI-2Reasoning · as “Kimi K2.5”	Reasoning	11.8%	92
68	Text ArenaChat · as “Kimi K2.5 (Thinking)”	Chat	1,450	84
68	Epoch ECIReasoning · as “Kimi K2.5”	Reasoning	148.7	100
72	WebDev ArenaCoding · as “Kimi K2.5 (Thinking)”	Coding	1,436	82
10	SWE-bench VerifiedCoding · stale since 2026-02-26 · as “Kimi K2.5 (high)”	Coding	70.8%	39

Versions and release history

4 versions in this line since Nov 6, 2025, from Pricing, OpenRouter and the boards.

Category ranks, more models and catalog changes