EssentialAI: Rnj 1 Instruct

essentialai/rnj-1-instruct

Created Dec 7, 202532,768 context

$0.15/M input tokens$0.15/M output tokens

Rnj-1 is an 8B-parameter, dense, open-weight model family developed by Essential AI and trained from scratch with a focus on programming, math, and scientific reasoning. The model demonstrates strong performance across multiple programming languages, tool-use workflows, and agentic execution environments (e.g., mini-SWE-agent).

EssentialAI: Rnj 1 Instruct

essentialai/rnj-1-instruct

Created Dec 7, 202532,768 context

$0.15/M input tokens$0.15/M output tokens

Rnj-1 is an 8B-parameter, dense, open-weight model family developed by Essential AI and trained from scratch with a focus on programming, math, and scientific reasoning. The model demonstrates strong performance across multiple programming languages, tool-use workflows, and agentic execution environments (e.g., mini-SWE-agent).

Recent activity on Rnj 1 Instruct

Total usage per day on OpenRouter

Prompt

1.48M

Completion

230K

Reasoning

0

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.