Trinity-Large-Thinking

Released
2026-04-01
Last refreshed
2026-06-29
Status
Researched 166d ago
Open sourceCommercial use: permittedRAGAgentsLong contextClassificationJSON / Tool use
Arcee AI releases · 8 in the last 12 months · this family litChangelog →
Specifications
Family
Trinity
Released
2026-04-01
Context
256k
Parameters
400B
Architecture
Mixture of Experts
Specialization
reasoning
Openness
Open source
License
Apache 2.0OSI-approvedCommercial use: permitted
Weights
Available
Code
Unknown
Training
Fine-tuned
Created by
Arcee AI

Agentic AI workflows, efficient and secure

San Francisco, California, United States
Founded 2023
Website
Pricing
Output / 1M
$0.850
Input / 1M
$0.220

Cheapest of 3 routes · OpenRouter

Providers(3)
Arcee AIOpenRouterVercel AI Gateway
View 3 provider routes

About

Arcee AI's flagship 400B sparse MoE reasoning model with 13B active parameters per token. Trained on 20T tokens with a STEM-focused curriculum. Designed for agentic workflows, chain-of-thought reasoning, and long-context tasks up to 256K tokens (BF16 API). Open-source under Apache 2.0. Available via Arcee AI API.

Provider price ladder

Compare all 3

Compare API pricing across 3 providers for input and output tokens, batch, and cached reads when available.

ProviderInput / 1MOutput / 1MRoute
OpenRouter$0.220$0.850
Serverless
Vercel AI Gateway$0.250$0.900
Serverless
Arcee AI--
Partial

Capabilities

ReasoningJSON / Tool useStructured Outputs

Benchmark peer barsfor RAG

No task-mapped benchmark peers are available for this model yet.

Benchmark scores(1)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
BenchmarkScoreVersionEvaluationSource
Google-Proof Q&A89.2diamondObserved 2026-04-24—Source

Migration checks

No linked migration route is available for this model yet.

Rankings & picks(1)

Best Open Source LLMsListed

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