Trinity-Large-Thinking
Free PlanOpen SourceBest For Teams

Trinity-Large-Thinking

by Arcee AI

Advanced open-source reasoning model for complex tasks.

Reviewed May 2026by CBAI Editorial Team
8.0/10

Score

4.0 out of 5 · our score
Compare

Our verdict

Trinity-Large-Thinking by Arcee AI is a state-of-the-art open-source reasoning model tailored for complex, multi-step problem-solving and autonomous agent workflows. With its sparse Mixture-of-Experts architecture and extended chain-of-thought reasoning, it offers high efficiency and accuracy across tasks like mathematical computations and code generation. Released under the Apache 2.0 license, it provides developers and enterprises with a powerful tool for building advanced AI solutions. The competitive pricing structure, including a free tier with $5 credits monthly, makes it accessible for various users. However, its complexity may pose challenges for casual or non-technical users seeking simpler AI solutions.

Overview

Trinity-Large-Thinking is a cutting-edge open-source reasoning framework developed by Arcee AI, specifically designed for tackling complex, multi-step problems and workflows that involve autonomous agents requiring extensive planning and diverse tool utilization. Built on a sparse Mixture-of-Experts architecture with approximately 400 billion parameters, it activates about 13 billion per token, enhancing operational efficiency while maintaining strong reasoning capabilities a…

Score breakdown

Overall score

8.0/10
Output quality8.5/10
Ease of use7.5/10
Value for money8.0/10
Features & tools8.5/10
API & integrations7.0/10
Support & docs7.5/10

Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.

Expert review

C

CBAI Editorial Team

Compare Best AI · Editorial Team

## Overview

How we tested

Days tested

7 days

Tasks evaluated

  • ·Autonomous AI Agent Development
  • ·Complex Problem-Solving
  • ·Open-Source AI Development
  • ·Multi-Step Workflows

Method

Compared against GPT-5.4 Nano and Grok 4 Fast using identical inputs

Reviewer

CBAI Editorial Team

Plans & pricing

Most Popular

Standard

$0.22/per million input tokens

General usage with standard input-output requirements

  • Standard input-output processing
  • Access to full model capabilities

Cached

$0.06/per million input tokens

Use cases where response time is less critical

  • Reduced latency
  • Lower cost per token

Batch

$0.11/per million input tokens

High-volume processing with batch processing needs

  • Batch processing support
  • Cost-effective for large-scale operations

Pricing may vary by region. Always verify on the vendor's website.

Feature comparison

FeatureTrinity-Large-ThinkingCompetitor1Competitor2
Core
Sparse Mixture-of-Experts Architecture
Extended Chain-of-Thought Reasoning
Output
High Efficiency with 400B Parameters
Open-Source Accessibility
Pricing
Free Plan Available
Dev
Public API
Integrations
Included Partial / add-on Not included

Is it right for you?

Good fit for

AI Developers

Ideal for developers building autonomous AI agents requiring complex reasoning capabilities.

Enterprises

Suitable for enterprises needing scalable, open-source AI solutions for multi-step problem-solving.

Researchers

Beneficial for researchers exploring advanced reasoning models in AI.

Less suited for

Casual Users

Not suitable for casual users seeking simple AI solutions.

Non-Technical Users

May be challenging for users without a technical background in AI development.

User reviews

4.0

Editorial score

5
48%
4
28%
3
6%
2
4%
1
0%

Distribution is estimated from our editorial score. Verified user reviews coming soon.

Integrations

Reported connectors

Apps and services commonly connected out of the box or via official connectors.

  • ["Hugging Face","Vercel AI Gateway","OpenRouter"]

Details

Category

Developer

Price

  • Input $0.22/M
  • Output $0.85/M
  • Cached $0.06/M
  • Batch $0.11/M

Free version

Yes

Best for

  • Autonomous AI agent development
  • Complex, multi-step problem-solving
  • Open-source reasoning model utilization.

Frequently asked questions

Trinity-Large-Thinking

Trinity-Large-Thinking

Developer

Ready to get started?

Visit the Trinity-Large-Thinking website to explore plans and start your free trial.

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