Trinity Large Preview

Arcee-aiMCP Tool Call

arcee-ai/trinity-large-previewOpen Weights

Lightly post-trained 398B MoE chat model for creative work, long-context prompts, and tool-using agents

Benchmark Pricing$0.00 / 1M in$0.00 / 1M out

Context: 524,288 tokens•Max Output: 262,144 tokens•Released: 2026-01-27

TECHNICAL SPECIFICATIONS

Context Window524,288524.3K tokens

Max Output262,144262.1K tokens

LicenseOpenMDW-1.1Self-hostable

Input Modalities

Text

Function / Tool CallingSupported (MCP Ready)

Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Trinity Large Preview natively supports OpenAI / Anthropic format tool calling and is fully compatible with MCP servers and agent loops.

MCP Context Window Recommendations

With a context capacity of 524,288 tokens, this model can handle extremely large MCP resource manifests, complete database schemas, and multiple active server tool definitions simultaneously without degradation.

API CALL INVOCATION EXAMPLE

// Example: Calling Trinity Large Preview via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.ARCEE-AI_API_KEY,
});

const response = await client.chat.completions.create({
  model: "arcee-ai/trinity-large-preview",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

console.log(response.choices[0].message.content);