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EssentialAI: Rnj 1 Instruct

ESSENTIALAI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1050Chatbot Arena Verified
Max Context32,768Tokens
API Cost / 1M$0.30Blended Prompt + Completion

Model Capabilities

  • Classification
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).

Granular Pricing Matrix

Input Tokens (Prompt)$0.15 / 1M
Output Tokens (Completion)$0.15 / 1M

Pricing data via OpenRouter. Sync: 3/16/2026

Evaluate Competitors

VS Engine MatchupEssentialAI: Rnj 1 Instruct vs Hunter AlphaVS Engine MatchupEssentialAI: Rnj 1 Instruct vs Healer AlphaVS Engine MatchupEssentialAI: Rnj 1 Instruct vs NVIDIA: Nemotron 3 Super (free)VS Engine MatchupEssentialAI: Rnj 1 Instruct vs Qwen: Qwen3.5-9BVS Engine MatchupEssentialAI: Rnj 1 Instruct vs LiquidAI: LFM2-24B-A2BVS Engine MatchupEssentialAI: Rnj 1 Instruct vs Free Models Router