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Rnj 1 Instruct

by EssentialaiReleased 7 December 2025

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...

TakesText
GivesText

Reads about 32 pages

Parameters you can send

Standard OpenAI fields, grouped by what they control. Anything not listed is accepted and ignored.

Shaping the reply

How long, how varied, where to stop.

max_tokenstemperaturetop_ptop_kmin_pstopfrequency_penaltypresence_penaltyrepetition_penaltylogit_bias

Structured output

Get JSON you can parse instead of prose.

response_formatstructured_outputs

Tools

Let the model call your functions.

toolstool_choice

Questions about Rnj 1 Instruct

  • Is Rnj 1 Instruct still on sale?

    No. Essentialai has retired it. Other Essentialai models are on sale.

  • What is Rnj 1 Instruct best for?

    The lab has not said.

  • Does Rnj 1 Instruct work in Arabic, French or Darja?

    Essentialai names no languages for Rnj 1 Instruct. Arabic, French and Darja: not stated.

  • Can it read PDFs, images or a whole book?

    It reads text. Up to 33K tokens in one request, about 32 pages. Longest reply: not stated.

  • Is Rnj 1 Instruct open source?

    Yes, its weights are public. Open weights on Hugging Face

  • Who makes Rnj 1 Instruct, and when was it released?

    Essentialai. Released 7 December 2025.