INTELLECT-3

by PrimeIntellect

INTELLECT-3 is a 106B-parameter Mixture-of-Experts model with 12B active parameters, built on the GLM-4.5-Air base model and post-trained with supervised fine-tuning followed by large-scale reinforcement learning. The complete training recipe, including model weights, the open-source PRIME-RL framework, training environments, and evaluations, is publicly available. The model excels at mathematics, coding, and multi-step reasoning, achieving 98.1% on MATH-500, 90.8% on AIME 2024, 69.3% on LiveCodeBench, and 74.4% on GPQA Diamond. It matches or outperforms much larger frontier open models on reasoning and agentic benchmarks, making it effective for competitive math, software engineering, and complex problem-solving. INTELLECT-3 is designed for agentic applications with support for tool use, function calling, and structured output. Its 131K token context window enables processing of long documents, codebases, and complex multi-turn interactions. The model is available in full precision (BF16) and quantized (FP8) variants, with the open-weight design allowing researchers and developers to fine-tune, inspect, and deploy it independently.

Key info

Input
Output
Features
Context window
131K
Max output
8K

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#247 of 534 LLMs
TierEfficient
Output speed0 tok/s
First token0.00s
Intelligence Index15.6
Math Index88.0
Reasoning & knowledge
MMLU-Pro
82%
GPQA Diamond
76%
Humanity's Last Exam
12%
Long-context reasoning
32%
Coding
LiveCodeBench
78%
SciCode
39%
Agentic & tool use
Terminal-Bench Hard
9%
τ²-Bench Telecom
27%
Math & instruction following
AIME 2025
88%
IFBench
34%

Available routes

No routes currently available — INTELLECT-3 isn't routed through the Opper gateway right now. It may return.

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INTELLECT-3 by PrimeIntellect — not currently on Opper | Opper AI