K2 Horizon 3.7B vs Nova 2 Lite
K2 Horizon 3.7B and Nova 2 Lite are closely matched at 21.4 and 24.7 on the LLM Stats Score.
Institute of Foundation Models · Amazon · Updated for 2026
Which is better?
K2 Horizon 3.7B and Nova 2 Lite are closely matched on the overall LLM Stats Score at 21.4 and 24.7.
In the 3 individual benchmarks reported for both models, K2 Horizon 3.7B wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose K2 Horizon 3.7B
- you value its reported benchmark strengths — it wins 2 of 3 exact shared results
- you want the most recent training data — it shipped Sep 2026
- you need open weights you can self-host or fine-tune
Choose Nova 2 Lite
- you want predictable pricing at $0.30/M input and $2.50/M output
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
8 reported for K2 Horizon 3.7B · 19 for Nova 2 Lite
K2 Horizon 3.7B outperforms in 2 benchmarks (BFCL-V4, SWE-Bench Verified), while Nova 2 Lite is better at 1 benchmark (GPQA).
K2 Horizon 3.7B shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Nova 2 Lite specifies input context (1,000,000 tokens). Only Nova 2 Lite specifies output context (65,536 tokens).
Input capabilities
Documented input modalities across available providers
Nova 2 Lite supports multimodal inputs, whereas K2 Horizon 3.7B does not.
Nova 2 Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.
K2 Horizon 3.7B
Nova 2 Lite
License
Usage and distribution terms
K2 Horizon 3.7B is licensed under Apache 2.0, while Nova 2 Lite uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
K2 Horizon 3.7B was released on 2026-09-03, while Nova 2 Lite was released on 2025-12-02.
K2 Horizon 3.7B is 9 months newer than Nova 2 Lite.
Sep 3, 2026
1 months ago
9mo newerDec 2, 2025
10 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against K2 Horizon 3.7B and Nova 2 Lite side-by-side, then vote on the output you prefer.
FAQ
Common questions about K2 Horizon 3.7B vs Nova 2 Lite.