Kimi K3 Model Specs, Costs & Benchmarks (July 2026)
Kimi K3, developed by MoonshotAI, features a context window of 1M tokens. The model costs $3.00 per million tokens for input and $15.00 per million tokens for output. It was released on July 16, 2026, and has achieved impressive scores in various benchmarks.
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Overview
 Kimi K3 | |
|---|---|
Model Provider The organization behind this AI's development | MoonshotAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens |
Release Date When this model first became publicly available | July 16, 2026 10 days ago July 16th, 2026 |
Pricing
| Kimi K3 | |
|---|---|
Input Token Cost Cost per million input tokens | $3.00 per million tokens |
Output Token Cost Cost per million output tokens | $15.00 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.30 per million tokens |
Capabilities & Features
| Kimi K3 | |
|---|---|
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 defaultEffort: Max, High, LowDefault: Max |
Benchmarks
| Kimi K3 | |
|---|---|
Intelligence Index Overall model quality across independent evaluations | 57.1 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 76.2 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 50.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,458 Elo (#1 in 3D (69.7% win rate)) |
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