Rnj-1 Instruct

EssentialaiMCP Tool Call
essentialai/rnj-1-instructOpen Weights

Open 8B Essential AI model for code, STEM reasoning, and agentic tool use

Benchmark Pricing$0.15 / 1M in$0.15 / 1M out
Context: 32,768 tokens•Max Output: 32,768 tokens•Released: 2025-12-04

TECHNICAL SPECIFICATIONS

Context Window32,76832.8K tokens
Max Output32,76832.8K tokens
LicenseApache 2.0Self-hostable
Input Modalities
Text
Function / Tool CallingSupported (MCP Ready)
Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Rnj-1 Instruct 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 32,768 tokens, this model can handle compact tool sets. Consider keeping MCP server tool manifests minimal to preserve headroom.

API CALL INVOCATION EXAMPLE

// Example: Calling Rnj-1 Instruct via OpenAI SDK
import OpenAI from "openai";

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

const response = await client.chat.completions.create({
  model: "essentialai/rnj-1-instruct",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

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

PRICING BY PROVIDER

1 providers
Together AIessentialai/Rnj-1-Instruct
$0.15 / $0.15

Rates in USD per 1M tokens. Rates synchronized from models.dev public catalog.

MODEL RESOURCES

View Essentialai HubHugging Face Weights