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About

GPT-5.2 Thinking is the highest-capability configuration in OpenAI’s GPT-5.2 model family, engineered for deep, expert-level reasoning, complex task execution, and advanced problem solving across long contexts and professional domains. Built on the foundational GPT-5.2 architecture with improvements in grounding, stability, and reasoning quality, this variant applies more compute and reasoning effort to generate responses that are more accurate, structured, and contextually rich when handling highly intricate workflows, multi-step analysis, and domain-specific challenges. GPT-5.2 Thinking excels at tasks that require sustained logical coherence, such as detailed research synthesis, advanced coding and debugging, complex data interpretation, strategic planning, and sophisticated technical writing, and it outperforms lighter variants on benchmarks that test professional skills and deep comprehension.

About

Trinity Large Thinking is a frontier open source reasoning model developed by Arcee AI, designed specifically for complex, multi-step problem solving and autonomous agent workflows that require long-horizon planning and tool use. Built on a sparse Mixture-of-Experts architecture with roughly 400 billion total parameters but only about 13 billion active per token, the model achieves high efficiency while maintaining strong reasoning performance across tasks such as mathematical problem solving, code generation, and multi-step analysis. It introduces extended chain-of-thought reasoning capabilities, allowing the model to generate intermediate “thinking traces” before producing final answers, which improves accuracy and reliability in complex scenarios. Trinity Large Thinking supports a very large context window of up to 262K tokens, enabling it to process long documents, maintain state across extended interactions, and operate effectively in continuous agent loops.

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

Professionals and developers who need an AI model to perform deep reasoning, handle long context tasks, and solve complex problems with high accuracy

Audience

Developers and enterprises building autonomous AI agents that need a high-performance, open-source reasoning model for complex, multi-step workflows

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

Company Information

Arcee AI
Founded: 2023
United States
www.arcee.ai/blog/trinity-large-thinking

Alternatives

Claude Opus 4.5

Claude Opus 4.5

Anthropic

Alternatives

Kimi K2 Thinking

Kimi K2 Thinking

Moonshot AI
Claude Opus 4.6

Claude Opus 4.6

Anthropic
GLM-5.1

GLM-5.1

Zhipu AI
GPT-5.2 Pro

GPT-5.2 Pro

OpenAI
GLM-4.5

GLM-4.5

Z.ai

Categories

Categories

Integrations

OpenClaw
OpenRouter
Visual Studio Code
Agentforce Vibes
Auggie CLI
Azure OpenAI Service
Bash
Brokk
Charlie
ChatGPT Pro
ChatGPT Search
Devin
Go
JetBrains AI Assistant
JetBrains Junie
Microsoft Foundry
Microsoft SharePoint
Microsoft Teams
Vertex AI
Zo Computer

Integrations

OpenClaw
OpenRouter
Visual Studio Code
Agentforce Vibes
Auggie CLI
Azure OpenAI Service
Bash
Brokk
Charlie
ChatGPT Pro
ChatGPT Search
Devin
Go
JetBrains AI Assistant
JetBrains Junie
Microsoft Foundry
Microsoft SharePoint
Microsoft Teams
Vertex AI
Zo Computer
Claim GPT-5.2 Thinking and update features and information
Claim GPT-5.2 Thinking and update features and information
Claim Trinity-Large-Thinking and update features and information
Claim Trinity-Large-Thinking and update features and information