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Nova 2 Pro vs Solar Pro 4

Solar Pro 4 leads the LLM Stats Score 35.2 to 30.8.

Amazon · Upstage · Updated for 2026

Which is better?

Solar Pro 4 leads the overall LLM Stats Score 35.2 to 30.8, ranking #87 overall.

In the 4 individual benchmarks reported for both models, Solar Pro 4 wins 4; 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 Nova 2 Pro

  • you are already invested in the Amazon ecosystem

Choose Solar Pro 4

  • overall performance matters — it scores 35.2 and ranks #87 on LLM Stats
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results
  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Nova 2 Pro
Amazon
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
30.8
#116
35.2
#87
Reasoning
30.7
#116
34.8
#83
Coding
19.4
#105
21.1
#90
Agents
12.0
#105
11.8
#107
Cost, coverage & limits
Benchmark wins
0 of 4
4 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
Nova 2 Pro
Solar Pro 4
Math
25.9#105
32.3#60
Tool use
15.5#92
11.3#113
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for Nova 2 Pro · 9 for Solar Pro 4

4 shared

Nova 2 Pro outperforms in 0 benchmarks, while Solar Pro 4 is better at 4 benchmarks (GPQA, LiveCodeBench, MMLU-Pro, SWE-Bench Verified).

Solar Pro 4 significantly outperforms across most benchmarks.

Mon Sep 21 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).

Amazon
Nova 2 Pro
Input- tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Nova 2 Pro supports multimodal inputs, whereas Solar Pro 4 does not.

Nova 2 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Nova 2 Pro

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Nova 2 Pro

Proprietary

Closed source

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Nova 2 Pro was released on 2025-12-02, while Solar Pro 4 was released on 2026-08-06.

Solar Pro 4 is 8 months newer than Nova 2 Pro.

Nova 2 Pro

Dec 2, 2025

9 months ago

Solar Pro 4

Aug 6, 2026

1 months ago

8mo newer

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?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Nova 2 Pro and Solar Pro 4 side-by-side, then vote on the output you prefer.

Nova 2 Pro
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Nova 2 Pro vs Solar Pro 4.

Which is better, Nova 2 Pro or Solar Pro 4?

Solar Pro 4 leads the LLM Stats Score 35.2 to 30.8. Nova 2 Pro is made by Amazon 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 Nova 2 Pro compare to Solar Pro 4 in benchmarks?

Nova 2 Pro scores Tau2 Telecom: 92.7%, AIME 2025: 92.3%, ScreenSpot: 88.1%, LongCodeBench: 84.0%, MMLU-Pro: 81.6%. 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 Nova 2 Pro and Solar Pro 4?

Nova 2 Pro 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 Nova 2 Pro and Solar Pro 4?

Key differences include LLM Stats Score (30.8 vs 35.2), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Nova 2 Pro and Solar Pro 4?

Nova 2 Pro is developed by Amazon and Solar Pro 4 is developed by Upstage.

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