Explore MoonshotAI's Kimi K2 0905 Model

Advanced text processing with enhanced coding and reasoning.

Input: text Output: text Context: 262,144 tokens Release: 2025-09-04

MoonshotAI's Kimi K2 0905, released in September 2025, is a cutting-edge text-to-text language model designed for complex text processing tasks. With a vast context window of up to 262,144 tokens, it excels in long-context inference and is tailored for advanced coding and reasoning applications. The model employs a Mixture-of-Experts architecture, using 1 trillion parameters and 32 billion active per forward pass, ensuring high performance and precision. It supports a variety of input and output modalities, making it versatile for tasks like web and 3D coding. Key features include its agentic capabilities, enhanced tool use, and superior code synthesis, making it a valuable asset for developers and researchers.

Use Cases

Here are a few ways teams apply MoonshotAI: Kimi K2 0905 in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Improve web and 3D coding outputs

Enhance reasoning in complex scenarios

Facilitate advanced tool use and integration

Boost accuracy in code synthesis tasks

Key Features

A quick look at the capabilities that make this model useful in real projects.

1 trillion parameters, 32 billion active per pass

Long-context inference up to 262,144 tokens

Enhanced agentic coding and reasoning capabilities

Supports web, 3D, and related coding tasks

Optimized with MuonClip for stable training

Specs

Overview

Vendor
moonshotai

Model ID
moonshotai/kimi-k2-0905

Release
2025-09-04

Modalities & context

Input
text

Output
text

Context
262,144 tokens

Parameters & defaults

Supported parameters: frequency_penalty, logit_bias, logprobs, max_tokens, min_p, presence_penalty, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: MoonshotAI: Kimi K2 0905

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:

Write 150 words on how AI might positively upend work, leisure and creativity

AI is poised to liberate humanity from drudgery and ignite a renaissance of meaning. By automating repetitive tasks, it will shrink the workweek, letting people trade spreadsheets for community gardening, elder-care co-ops, or mastering the cello. Freed hours become fertile soil for hobbies once reserved for weekends: AI-generated trail guides will customize Sunday hikes, while real-time translation earbuds turn any café into a global salon. Creativity, no longer hostage to elite tools, will bloom as neural synthesizers let teenagers score symphonies or design zero-carbon fashion with a prompt. Algorithms will curate serendipity, pairing unlikely collaborators—say, a Kenyan poet and a Norwegian coder—to birth Afro-futurist games. Universal creative co-pilots will amplify, not replace, human imagination, turning every commuter into a potential Picasso and every evening into potential magic.

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up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

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