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Institute of Foundation Models

K2 Horizon 7B

  • Released
  • Open weights
  • Apache 2.0
Intelligence Index

Reasoning setting

20.6#52 of 83measured models
Measured · Artificial Analysis v4.3.2
Context window
524.29K tok

Performance profile

ReasoningRank #64 of 107
75.3%
GPQA Diamond
CodingRank #83 of 94
27.5%
SciCode

Capabilities

Context window

Modalities

Measured setting

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
Reasoning
Intelligence Index
20.6

Pricing & access

No API offering listed in our tracked sources.

Run locally

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

K2 Horizon 7B · Reasoning#71 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  4. 68Gemini 3.5 Flash-LiteHigh18.8%
  5. 69Quasar 438BMax18.7%
  6. 70K-EXAONE 2.0 0803Reasoning18.6%
  7. 71K2 Horizon 7BReasoning18.2%
  8. 72G9v3-39A5BReasoning17.5%
  9. 73HyperNova 60B 2605High16.6%
  10. 74KAT Coder Pro V2Standard16.1%

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.