Leaderboard / LLM360 / MBZUAI (K2)

K2-V2 Instruct

LLM360 / MBZUAI (K2) · K2 · released 2025-12-03 · data checked 2026-11-01

K2-V2 Instruct is a 70B-parameter dense model from LLM360 / MBZUAI (K2) (Other), released 2025-12-03 under the Apache-2.0 license. It scores 57.9 on the Small LM Index, #4 of 6 large models. It needs about 47 GB of memory at 4-bit with an 8K-token context.

Fully open 70B model (data, code and checkpoints) from MBZUAI.

Small LM Index
57.9
#4 of 6 scored large models
Likely 54.2–61.5 · from 2 of 6 core benchmarks
Parameters
70B
Dense
Price per 1M tokens
—
No hosted API on OpenRouter; self-host
Context window
512K
tokens

Benchmarks

Each bar shows this model's score. The tick marks the best large model on that benchmark. Sources: 4 reported by LLM360 / MBZUAI (K2). How we label sources.

GPQA Diamond Lab-reported Knowledge69.3
Class best: Nemotron 3.5 Bolt 74B-A9B 88.8
AIME Lab-reported Math · AIME 2025, high reasoning80.2
Class best: Kolibri-1 96.0
IFEval Lab-reported Instruction following90.0
HMMT Lab-reported Math · HMMT 2025, high reasoning71.4

Not reported: estimated

What the index model expects from this model's other scores. Not a measurement.

MMLU-Pro≈ 77
Humanity's Last Exam≈ 9
LiveCodeBench≈ 67
SWE-bench Verified≈ 42

Specifications

Lab
LLM360 / MBZUAI (K2) (AE · Other)
Architecture
Dense transformer
Total parameters
70B
Active parameters
All (dense)
Size class
Large
Context window
512K tokens
Input modalities
text
Reasoning
Hybrid (thinking on/off)
License
Apache-2.0
Openness
Fully open: weights, training data and code
Memory to run
~47 GB at 4-bit, 8K context (more sizes)
Hugging Face
1.2K downloads (30 days) · 46 likes

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Sources

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Run it locally

No GGUF build from a well-known publisher yet.

vLLM (GPU server)
vllm serve LLM360/K2-V2-Instruct
Full-precision weights, for a server GPU.

Memory needed: weights, context cache and runtime buffers.

Quantization4K context32K context256K context
16-bit F16143 GB153 GB228 GB
8-bit Q8_078 GB87 GB162 GB
4-bit Q4_K_M46 GB55 GB130 GB

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