Average Ratings 1 Rating
Average Ratings 1 Rating
Description
Kimi K3 is a large-scale AI model from Moonshot AI designed for advanced reasoning, software engineering, visual understanding, agentic workflows, and knowledge work. The model is built with 2.8 trillion parameters and uses Kimi Delta Attention, a hybrid linear attention design created to support long-context intelligence. It also includes Attention Residuals and a native 1 million token context window, giving developers room to work with large files, repositories, documentation sets, transcripts, and enterprise knowledge bases. Kimi K3 always runs with thinking mode enabled and currently supports maximum reasoning effort by default. Developers can access the model through Moonshot’s OpenAI-compatible API using Python, cURL, and the OpenAI SDK. The API supports standard chat completions, streaming output, structured JSON Schema responses, partial continuation from a prefix, custom tool calling, required tool choice, and dynamic tool loading. Kimi K3 also supports vision inputs, including local images encoded as base64 and video files uploaded through the file API. Automatic context caching helps repeated long-prefix workflows become more efficient without requiring manual cache IDs or extra cache parameters. By combining long context, visual understanding, tool use, structured output, and advanced reasoning, Kimi K3 is built for developers creating sophisticated AI agents, coding systems, research tools, and enterprise applications.
Description
Ox Alpha is an anonymous frontier-style reasoning model that emerged in August 2026 with a strong focus on software engineering and agentic AI applications. The organization responsible for developing the model has not publicly identified itself, and the model initially appeared under the identifier stealth/ox-alpha. It is built to reason through difficult problems rather than simply produce short conversational responses. Ox Alpha provides a 1,048,576-token context window, giving it enough capacity to process very large code repositories, documents, specifications, and conversation histories in a single context. Its maximum output length reaches 131,072 tokens, enabling unusually long and detailed responses when needed. The model can process text, images, and video as inputs while returning text-based results. Developers can use tool calling and structured JSON output to connect Ox Alpha with applications, APIs, and autonomous agent workflows. Its capabilities are particularly suited to long-running coding tasks such as debugging, refactoring, architecture analysis, and reasoning across multiple files without quickly losing context. Ox Alpha has attracted attention from developers because of its combination of large-context reasoning, multimodal input, agentic features, and currently anonymous origins.
API Access
Has API
API Access
Has API
Screenshots View All
No images available
Integrations
Cheaper Inference
Claude Code
Hermes Agent
OpenClaw
OpenCode Go
OpenCode Zen
Pi Agent
Fireworks AI
Kimi Code CLI
NVIDIA TensorRT
Integrations
Cheaper Inference
Claude Code
Hermes Agent
OpenClaw
OpenCode Go
OpenCode Zen
Pi Agent
Fireworks AI
Kimi Code CLI
NVIDIA TensorRT
Pricing Details
$3 per 1M tokens (input)
Kimi K3 is priced per 1 million tokens:
Cached input: $0.30
Uncached input: $3.00
Output: $15.00
Context window: 1,048,576 tokens
Cached inputs cost 90% less than uncached inputs, while generated output is the most expensive token category. Prices exclude applicable taxes, which are calculated based on the customer’s jurisdiction.
Cached input: $0.30
Uncached input: $3.00
Output: $15.00
Context window: 1,048,576 tokens
Cached inputs cost 90% less than uncached inputs, while generated output is the most expensive token category. Prices exclude applicable taxes, which are calculated based on the customer’s jurisdiction.
Free Trial
Free Version
Pricing Details
$0 per 1M tokens
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Moonshot AI
Founded
2023
Country
China
Website
kimi.ai
Vendor Details
Company Name
Ox Alpha
Website
openrouter.ai/compare/stealth/ox-alpha