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About

Gemini 3.8 Flash is Google’s most intelligent Flash workhorse model, delivering significant improvements over 3.7 Flash across software engineering, agentic tasks, and critical multi-step reasoning in specialized domains. Built for long-horizon coding and autonomous agents, it can solve complex engineering problems end to end and delivers the dependability required for critical enterprise autonomy across specialized knowledge domains. The model shows stronger performance in quantitative and professional fields that require advanced analysis and reporting, as well as multi-step reasoning across STEM, humanities, and professional subjects. Its gains stem from a core design choice: Gemini 3.8 Flash works harder on complex tasks, executing additional reasoning steps and calling tools iteratively to maximize performance. At higher effort levels, it may use more tokens to pursue stronger results, while developers can select lower effort levels.

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

Developers, enterprises, and professional users wanting to build autonomous agents, solve complex coding tasks, and perform advanced multi-step reasoning across specialized domains

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

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

Google
United States
google.com

Company Information

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

Alternatives

Alternatives

Kimi K2 Thinking

Kimi K2 Thinking

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GPT-5.6 Sol

GPT-5.6 Sol

OpenAI
GLM-5.1

GLM-5.1

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LongCat-2.0

LongCat-2.0

LongCat
MiMo-V2.5-Pro

MiMo-V2.5-Pro

Xiaomi Technology

Categories

Categories

Integrations

OpenClaw
Vercel AI Gateway
CSS
Claude Opus 5
Cursor
Gemini 3.5 Flash Cyber
Gemini 3.8 Live
Gemini Computer Use
Gemini Enterprise Agent Platform
Gemini Enterprise Agent Platform Notebooks
Google AI Plus
Google Antigravity
Java
JetBrains Junie
OpenRouter
Ruby
SQL
Scala
Visual Studio Code
XML

Integrations

OpenClaw
Vercel AI Gateway
CSS
Claude Opus 5
Cursor
Gemini 3.5 Flash Cyber
Gemini 3.8 Live
Gemini Computer Use
Gemini Enterprise Agent Platform
Gemini Enterprise Agent Platform Notebooks
Google AI Plus
Google Antigravity
Java
JetBrains Junie
OpenRouter
Ruby
SQL
Scala
Visual Studio Code
XML
Claim Gemini 3.8 Flash and update features and information
Claim Gemini 3.8 Flash and update features and information
Claim Trinity-Large-Thinking and update features and information
Claim Trinity-Large-Thinking and update features and information