Kimi K2 Thinking

Kimi K2 Thinking

Moonshot AI
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About

Kimi K2 Thinking is an advanced open source reasoning model developed by Moonshot AI, designed specifically for long-horizon, multi-step workflows where the system interleaves chain-of-thought processes with tool invocation across hundreds of sequential tasks. The model uses a mixture-of-experts architecture with a total of 1 trillion parameters, yet only about 32 billion parameters are activated per inference pass, optimizing efficiency while maintaining vast capacity. It supports a context window of up to 256,000 tokens, enabling the handling of extremely long inputs and reasoning chains without losing coherence. Native INT4 quantization is built in, which reduces inference latency and memory usage without performance degradation. Kimi K2 Thinking is explicitly built for agentic workflows; it can autonomously call external tools, manage sequential logic steps (up to and typically between 200-300 tool calls in a single chain), and maintain consistent reasoning.

About

Portia AI is an open source developer framework (with optional cloud services) that lets teams rapidly build, deploy, and monitor stateful, authenticated AI agents with full visibility and control. Developers start by prompting the SDK to generate explicit, structured multi-step “plans” that weave together LLM reasoning and tool calls, then run those plans step-by-step, enriching plan state at each stage and pausing for clarifications (human or machine) whenever authentication or missing data is required. With its unified auth framework and plug-and-play tool catalog, Portia handles credentials and permissions for remote API and MCP tool invocations automatically. The complementary cloud offering adds persistent storage of plan run states, historical logs, telemetry dashboards, and managed scaling so production deployments stay reliable, auditable, and compliant in regulated environments.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and AI research teams seeking a solution for building autonomous agents, multi-step reasoning systems and tool-enabled workflows

Audience

Engineering teams searching for a solution to create, authenticate, and oversee production-grade AI agents in regulated or mission-critical settings

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$30 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Moonshot AI
Founded: 2023
United States
moonshotai.github.io/Kimi-K2/thinking.html

Company Information

Portia
Founded: 2025
United Kingdom
www.portialabs.ai/

Alternatives

Claude Opus 4.5

Claude Opus 4.5

Anthropic

Alternatives

Claude Opus 4.6

Claude Opus 4.6

Anthropic
DemoGPT

DemoGPT

Melih Ünsal
Kimi K2

Kimi K2

Moonshot AI
Kimi K2.5

Kimi K2.5

Moonshot AI

Categories

Categories

Integrations

Hugging Face
Asana
Cloudflare
GPT-5.1
GPT-5.1 Instant
GPT-5.1 Pro
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.3 Instant
GPT-5.4 nano
Gmail
Google Drive
Google Sheets
Intercom
Linear
Meta AI
Mistral AI
Model Context Protocol (MCP)
Shopify
Slack

Integrations

Hugging Face
Asana
Cloudflare
GPT-5.1
GPT-5.1 Instant
GPT-5.1 Pro
GPT-5.2 Pro
GPT-5.2 Thinking
GPT-5.3 Instant
GPT-5.4 nano
Gmail
Google Drive
Google Sheets
Intercom
Linear
Meta AI
Mistral AI
Model Context Protocol (MCP)
Shopify
Slack
Claim Kimi K2 Thinking and update features and information
Claim Kimi K2 Thinking and update features and information
Claim Portia and update features and information
Claim Portia and update features and information