Kimi K2.5 Model Specs, Costs & Benchmarks (July 2026)
Kimi K2.5, developed by MoonshotAI, features a context window of 262.1K tokens. The model costs $0.57 per million tokens for input and $2.85 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 K2.5 | |
|---|---|
Model Provider The organization behind this AI's development | MoonshotAI |
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 | 262.1K tokens |
Release Date When this model first became publicly available | January 27, 2026 6 months ago January 27th, 2026 |
Pricing
| Kimi K2.5 | |
|---|---|
Input Token Cost Cost per million input tokens | $0.57 per million tokens |
Output Token Cost Cost per million output tokens | $2.85 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.10 per million tokens |
Capabilities & Features
| Kimi 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 |
Reasoning Controls Defaults and configurable reasoning effort | Enabled by default |
Open Source Model availability |
Benchmarks
| Kimi K2.5 | |
|---|---|
Intelligence Index Overall model quality across independent evaluations | 35.4 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 46.8 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 21.7 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,275 Elo (#24 in Website (55.5% win rate)) |
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