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K2 Horizon MoVA 36B-A4B vs Solar Pro 4

K2 Horizon MoVA 36B-A4B and Solar Pro 4 are closely matched at 29.8 and 33.9 on the LLM Stats Score.

Institute of Foundation Models · Upstage · Updated for 2026

Which is better?

K2 Horizon MoVA 36B-A4B and Solar Pro 4 are closely matched on the overall LLM Stats Score at 29.8 and 33.9.

The models split the 4 individual benchmarks reported for both models evenly.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose K2 Horizon MoVA 36B-A4B

  • you want the most recent training data — it shipped Sep 2026
  • you need open weights you can self-host or fine-tune

Choose Solar Pro 4

  • you want predictable pricing at $0.30/M input and $1.20/M output

At a glance

The differences that matter most.

K2 Horizon MoVA 36B-A4B
Institute of Foundation Models
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
29.8
#149
33.9
#117
Reasoning
29.7
#148
33.5
#116
Coding
13.9
#163
20.4
#121
Agents
14.5
#116
10.8
#143
Cost, coverage & limits
Benchmark wins
2 of 4
2 of 4
Input price
— / M
$0.30 / M
Output price
— / M
$1.20 / M
Context window
—
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
K2 Horizon MoVA 36B-A4B
Solar Pro 4
Math
21.8#156
32.1#67
Tool use
11.9#132
8.9#160
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

9 reported for K2 Horizon MoVA 36B-A4B · 9 for Solar Pro 4

4 shared

K2 Horizon MoVA 36B-A4B outperforms in 2 benchmarks (Tau3 Banking, Terminal-Bench 2.1), while Solar Pro 4 is better at 2 benchmarks (AA-LCR, GPQA).

Both models are evenly matched across the benchmarks.

Fri Oct 30 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Solar Pro 4 specifies input context (524,288 tokens). Only Solar Pro 4 specifies output context (131,072 tokens).

Institute of Foundation Models
K2 Horizon MoVA 36B-A4B
Input- tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Fri Oct 30 2026 • llm-stats.com

License

Usage and distribution terms

K2 Horizon MoVA 36B-A4B is licensed under Apache 2.0, while Solar Pro 4 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

K2 Horizon MoVA 36B-A4B

Apache 2.0

Open weights

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

K2 Horizon MoVA 36B-A4B was released on 2026-09-03, while Solar Pro 4 was released on 2026-08-06.

K2 Horizon MoVA 36B-A4B is 1 month newer than Solar Pro 4.

K2 Horizon MoVA 36B-A4B

Sep 3, 2026

1 months ago

4w newer
Solar Pro 4

Aug 6, 2026

2 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against K2 Horizon MoVA 36B-A4B and Solar Pro 4 side-by-side, then vote on the output you prefer.

K2 Horizon MoVA 36B-A4B
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about K2 Horizon MoVA 36B-A4B vs Solar Pro 4.

Which is better, K2 Horizon MoVA 36B-A4B or Solar Pro 4?

K2 Horizon MoVA 36B-A4B and Solar Pro 4 are closely matched on the LLM Stats Score at 29.8 and 33.9. K2 Horizon MoVA 36B-A4B is made by Institute of Foundation Models and Solar Pro 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does K2 Horizon MoVA 36B-A4B compare to Solar Pro 4 in benchmarks?

K2 Horizon MoVA 36B-A4B scores GPQA: 80.8%, OmniScience (non-hallucination rate): 69.2%, AA-LCR: 66.3%, Terminal-Bench 2.1: 58.6%, SciCode: 38.9%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

What are the context window sizes for K2 Horizon MoVA 36B-A4B and Solar Pro 4?

K2 Horizon MoVA 36B-A4B supports an unknown number of tokens and Solar Pro 4 supports 524K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between K2 Horizon MoVA 36B-A4B and Solar Pro 4?

Key differences include LLM Stats Score (29.8 vs 33.9), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes K2 Horizon MoVA 36B-A4B and Solar Pro 4?

K2 Horizon MoVA 36B-A4B is developed by Institute of Foundation Models and Solar Pro 4 is developed by Upstage.

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