Kimi K2 0905 Model Specs, Costs & Benchmarks (July 2026)
Kimi K2 0905, developed by MoonshotAI, features a context window of 262.1K tokens. The model costs $0.60 per million tokens for input and $2.50 per million tokens for output. It was released on September 4, 2025, and has achieved impressive scores in various benchmarks.
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Overview
 Kimi K2 0905 | |
|---|---|
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 | 100.4K tokens |
Release Date When this model first became publicly available | September 4, 2025 10 months ago September 4th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | December 31, 2024 |
Pricing
| Kimi K2 0905 | |
|---|---|
Input Token Cost Cost per million input tokens | $0.60 per million tokens |
Output Token Cost Cost per million output tokens | $2.50 per million tokens |
Capabilities & Features
| Kimi K2 0905 | |
|---|---|
Input Types Supported input formats | text |
Output Types Supported output formats | text |
Tokenizer Text encoding system | Other |
Key Features Advanced capabilities | ✓ Function Calling✓ Structured Output |
Open Source Model availability |
Benchmarks
| Kimi K2 0905 | |
|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,132 Elo (#81 in Website (48.3% win rate)) |
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