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Kimi K2.5 Model Specs, Costs & Benchmarks (April 2026)

Kimi K2.5, developed by MoonshotAI, features a context window of 262.1K tokens. The model costs $0.44 per million tokens for input and $2.00 per million tokens for output. It was released on January 27, 2026, and has achieved impressive scores in various benchmarks.
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Overview

Kimi K2.5Kimi K2.5
Model Provider
The organization behind this AI's development
MoonshotAI logoMoonshotAI
Input Context Window
Maximum input tokens this model can process at once
262.1K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
65.5K
tokens
Release Date
When this model first became publicly available
January 27th, 2026

Pricing

Kimi K2.5Kimi K2.5
Input Token Cost
Cost per million input tokens
$0.44
per million tokens
Output Token Cost
Cost per million output tokens
$2.00
per million tokens

Capabilities & Features

Kimi K2.5Kimi K2.5
Input Types
Supported input formats
textimage
Output Types
Supported output formats
text
Tokenizer
Text encoding system
Other
Key Features
Advanced capabilities
✓ Function Calling✓ Structured Output✓ Reasoning Mode
Open Source
Model availability

Benchmarks

Kimi K2.5Kimi K2.5
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Not available
MMMU
Measures understanding of combined text and images across various domains
Not available
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Not available

Compare This Model

See how Kimi K2.5 compares with other top models

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