Kimi K3.1 Pro Reviews & Ratings

Kimi K3.1 Pro

5.0 out of 5 stars

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What is Kimi K3.1 Pro?

Kimi K3.1 Pro is a multimodal large language model developed by Moonshot AI to support advanced reasoning, autonomous AI agents, software development, 3D creation, and complex knowledge work. The model is based on a mixture-of-experts architecture containing approximately 2.8 trillion total parameters and 104 billion active parameters. Its one-million-token context window enables the processing of extensive documents, source code repositories, technical materials, and long-running task histories. Kimi K3.1 Pro builds on the Kimi K3 foundation with additional reinforcement learning and post-training optimization across programming, analytical reasoning, and agentic tasks. Its software engineering capabilities include code generation, debugging, terminal operations, automated testing, application development, and multistep problem-solving across existing repositories. The model can develop interactive websites, animated interfaces, browser-based 3D environments, and game projects using tools and frameworks such as Three.js, Unity, Unreal Engine, and Godot. Its multimodal reasoning capabilities allow it to interpret images, sketches, and visual references when generating technical designs or structured outputs. Three-dimensional modeling features include CAD script generation, parametric geometry creation, asset modification, and integration with tools such as Blender. Financial reasoning capabilities support complex spreadsheet models, financial statement analysis, investment research, cross-document verification, and evidence-based reporting. Kimi K3.1 Pro also supports tool-assisted workflows in which AI agents plan tasks, execute actions, evaluate results, and refine outputs across multiple steps. The model is available through Kimi's web and mobile applications, Kimi Work, Kimi Code, and the Kimi API, with a Highspeed variant providing faster inference and an open-weight release planned for November 4, 2026.

What is Gemini 4 Krypton?

Gemini 4 Krypton is a reportedly experimental large language model associated with Google DeepMind's next generation of Gemini artificial intelligence systems. Although Google has not officially announced the model, unofficial testing reports suggest that it may represent a more computationally intensive approach to AI reasoning and code generation. The model has been discussed as a potential successor or higher-capability alternative to existing Gemini 4 variants, including Argon and Carbon. Early demonstrations attributed to Krypton highlight its apparent ability to generate complex websites, interactive interfaces, animations, and substantial software implementations from written prompts. Testers have reported that the model sometimes requires considerably longer processing times while generating more extensive code than comparable Gemini systems. These observations have led to speculation that Krypton may prioritize detailed planning, implementation depth, and comprehensive task execution over response speed. Potential applications include full-stack application development, automated programming, interface prototyping, technical problem-solving, and AI-driven software engineering workflows. The model could also support advanced research and autonomous agent development if it incorporates the broader reasoning and multimodal capabilities associated with Google's Gemini platform. Important details such as context window size, API access, supported modalities, pricing, licensing, and official evaluation results have not been publicly verified. If Google releases Krypton with capabilities resembling those shown in early demonstrations, it may offer developers and enterprises another option for tackling computationally demanding programming and reasoning tasks.

Media

Media

No images available

Integrations Supported

.NET
C
C#
Cheaper Inference
Go
HTML
Hermes Agent
Java
JavaScript
JetBrains Junie
Kubernetes
Model Context Protocol (MCP)
Objective-C
OpenClaw
PHP
Python
Ruby
Scala
Solidity
Swift

Integrations Supported

.NET
C
C#
Cheaper Inference
Go
HTML
Hermes Agent
Java
JavaScript
JetBrains Junie
Kubernetes
Model Context Protocol (MCP)
Objective-C
OpenClaw
PHP
Python
Ruby
Scala
Solidity
Swift

API Availability

Has API

API Availability

Has API

Pricing Information

$2 per 1M tokens
API usage is pay-as-you-go: $2 per million input tokens and $10 per million output tokens. Cached input is $0.20 per million tokens; cache writes are $2 per million tokens. Kimi Code also provides tier-based membership access, with quotas and context limits depending on the tier.

Pricing Information

Pricing not provided

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Moonshot AI

Date Founded

2023

Company Location

China

Company Website

www.kimi.ai/

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

gemini.com

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Open-Weight AI Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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