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SK Telecom

A.X-K2

  • Released
  • Open weights
  • Apache 2.0
Intelligence Index

Reasoning setting

21.5#50 of 83measured models
Measured · Artificial Analysis v4.3.2
Context window
262.14K tok

Performance profile

ReasoningRank #34 of 107
85.7%
GPQA Diamond
CodingRank #60 of 94
41.0%
SciCode

Capabilities

Context window

Modalities

Measured setting

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
Reasoning
Intelligence Index
21.5

Pricing & access

No API offering listed in our tracked sources.

Run locally

Original download
694.2 GB
App memory
Unverified
Documented software
TransformersSetup guide (opens in a new tab)

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

A.X-K2 · Reasoning#50 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  4. 47K2 Horizon 375B A23BReasoning32.0%
  5. 48InklingExtra high31.9%
  6. 49Nemotron 3.5 Super VLReasoning30.7%
  7. 50A.X-K2Reasoning29.6%
  8. 51Solar Pro 4Reasoning29.2%
  9. 52Qwen3.5 397B A17BReasoning29.0%
  10. 53Solar Open2 250BReasoning28.5%

Peers use their best measured result on this benchmark.

Alternatives

Each model at its highest-scoring measured setting · Intelligence Index v4.3.2 and its evaluation cost per task.