GPT-5.1

GPT-5.1

OpenAI
Kimi K2

Kimi K2

Moonshot AI
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About

GPT-5.1 is the latest update in the GPT-5 series, designed to make ChatGPT dramatically smarter and more conversational. The release introduces two distinct model variants: GPT-5.1 Instant, which is described as the most-used model and is now warmer, better at following instructions, and more intelligent; and GPT-5.1 Thinking, which is the advanced reasoning engine that’s been tuned to be easier to understand, faster on straightforward tasks, and more persistent on complex ones. Users' queries are now routed automatically to the variant best-suited to the task. The update emphasizes not just improved raw intelligence but also enhanced communication style; the models are tuned to be more natural, enjoyable to talk to, and better aligned with user intents. The system card addendum notes that GPT-5.1 Instant uses “adaptive reasoning” that lets it decide when to think more deeply before responding, while GPT-5.1 Thinking adapts its thinking time accurately to the question at hand.

About

Kimi K2 is a state-of-the-art open source large language model series built on a mixture-of-experts (MoE) architecture, featuring 1 trillion total parameters and 32 billion activated parameters for task-specific efficiency. Trained with the Muon optimizer on over 15.5 trillion tokens and stabilized by MuonClip’s attention-logit clamping, it delivers exceptional performance in frontier knowledge, reasoning, mathematics, coding, and general agentic workflows. Moonshot AI provides two variants, Kimi-K2-Base for research-level fine-tuning and Kimi-K2-Instruct pre-trained for immediate chat and tool-driven interactions, enabling both custom development and drop-in agentic capabilities. Benchmarks show it outperforms leading open source peers and rivals top proprietary models in coding tasks and complex task breakdowns, while its 128 K-token context length, tool-calling API compatibility, and support for industry-standard inference engines.

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, data scientists and enterprise users wanting a solution to handle both smooth interactions and deep reasoning tasks

Audience

AI researchers, developers and organizations seeking an open source, high-performance agentic intelligence model for advanced reasoning, coding and autonomous task execution

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

No information available.
Free Version
Free Trial

Pricing

Free
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

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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

OpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1/

Company Information

Moonshot AI
Founded: 2023
China
moonshotai.github.io/Kimi-K2/

Alternatives

Alternatives

Claude Code

Claude Code

Anthropic
Claude Opus 4.5

Claude Opus 4.5

Anthropic
GPT-5.2

GPT-5.2

OpenAI
Olmo 3

Olmo 3

Ai2

Categories

Categories

Integrations

AiAssistWorks
Brokk
EaseMate AI
OpenCode
Auggie CLI
Azure OpenAI Service
C++
ChatGPT Pro
Codex CLI
Doraverse
GitHub Copilot
Google Drive
Kimi
NVIDIA TensorRT
OpenAI
OpenAI Codex
OpenRouter
TypeScript
Verdent
Vertex AI

Integrations

AiAssistWorks
Brokk
EaseMate AI
OpenCode
Auggie CLI
Azure OpenAI Service
C++
ChatGPT Pro
Codex CLI
Doraverse
GitHub Copilot
Google Drive
Kimi
NVIDIA TensorRT
OpenAI
OpenAI Codex
OpenRouter
TypeScript
Verdent
Vertex AI
Claim GPT-5.1 and update features and information
Claim GPT-5.1 and update features and information
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