Essential AI: Rnj 1 Instruct

This model is no longer available.

Add AI to your application with Puter.js.

Explore Other Models

Model Card

Rnj-1 Instruct is an 8B-parameter instruction-tuned model built by Essential AI, trained from scratch and optimized for code, STEM reasoning, and agentic workflows. It offers a 32K context window and is released under Apache 2.0.

The model punches well above its weight class in agentic coding, scoring 20.8% on SWE-bench Verified — surpassing Gemini 2.0 Flash and Qwen2.5-Coder 32B Instruct under the same framework. It also posts strong marks across code generation (83.5% HumanEval+, 57.1% BigCodeBench) and function calling (62.2% BFCL v3).

Math and science capabilities are equally competitive: 92.6% on GSM8K, 43.3% on AIME '25, and solid results on GPQA-Diamond. Its post-training was deliberately kept minimal, making it a strong base for further fine-tuning. A great fit for developers building coding agents, tool-use pipelines, or STEM-focused applications on a budget.

Context Window 33K

tokens

Max Output 33K

tokens

Input Cost $0.15

per million tokens

Output Cost $0.15

per million tokens

Release Date Apr 7, 2025

 

Code Example

Add AI to your app with the Puter.js AI API — no API keys or setup required.

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.chat("Explain quantum computing in simple terms").then(response => {
    document.body.innerHTML = response.message.content;
});

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms").then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

Frequently Asked Questions

How do I use Rnj 1 Instruct?

You can access Rnj 1 Instruct by Essential AI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.

Is Rnj 1 Instruct free?

Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add Rnj 1 Instruct to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.

What is the pricing for Rnj 1 Instruct?
Rnj 1 Instruct costs $0.15 per 1M input tokens and $0.15 per 1M output tokens.
Price per 1M tokens
Input$0.15
Output$0.15
Who created Rnj 1 Instruct?

Rnj 1 Instruct was created by Essential AI and released on Apr 7, 2025.

What is the context window of Rnj 1 Instruct?

Rnj 1 Instruct supports a context window of 33K tokens. For reference, that is roughly equivalent to 66 pages of text.

What is the max output length of Rnj 1 Instruct?

Rnj 1 Instruct can generate up to 33K tokens in a single response.

Does it work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Rnj 1 Instruct API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add AI to your application without worrying about API keys or setup.

Explore Models View Tutorials