AI model comparison

Solar Pro 3 vs Llama 4 Scout

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency.

Input / 1M
$0.15
Output / 1M
$0.60
Context
131K

Llama 4 Scout 17B Instruct (16E) is a mixture-of-experts (MoE) language model developed by Meta, activating 17 billion parameters out of a total of 109B.

Input / 1M
$0.18
Output / 1M
$0.59
Context
1.31M

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

upstage logo

Solar Pro 3

1.1x cheaper for a typical chat

Higher intelligence score

meta-llama logo

Llama 4 Scout

8.1 vs 7.8 on Artificial Analysis

Larger context window

meta-llama logo

Llama 4 Scout

1.31M vs 131K tokens

Newer release

upstage logo

Solar Pro 3

Released January 27, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

upstage logoSolar Pro 37.8
meta-llama logoLlama 4 Scout8.1

Coding index

upstage logoSolar Pro 316.2
meta-llama logoLlama 4 Scout8.2

Agentic index

upstage logoSolar Pro 31.4
meta-llama logoLlama 4 Scout0.5

Pricing

Solar Pro 3 vs Llama 4 Scout API pricing

Per-token API rates. Cheaper option highlighted.

Metricupstage logoSolar Pro 3meta-llama logoLlama 4 Scout
Input tokensPer 1M tokens$0.15$0.18
Output tokensPer 1M tokens$0.60$0.59
Cached input (read)Per 1M tokens$0.02Not available
Cache writePer 1M tokensNot availableNot available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

upstage logoSolar Pro 3$0.60
meta-llama logoLlama 4 Scout$0.66

Coding task

30K in, 4K out

upstage logoSolar Pro 3$6.90$2.85 cached
meta-llama logoLlama 4 Scout$7.76

Long document summary

150K in, 2K out

upstage logoSolar Pro 3$23.70$3.45 cached
meta-llama logoLlama 4 Scout$28.18

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricupstage logoSolar Pro 3meta-llama logoLlama 4 Scout
Context window131K tokens1.31M tokens
Max output118K tokens118K tokens
Input typesTextImage, Text
Output typesTextText
Reasoning effort levelsHigh, Medium, Low, Minimal, NoneNot available
Default reasoning effortMediumNot available
Release dateJanuary 27, 2026April 5, 2025

Features

Supported features

API features available for each model.

Metricupstage logoSolar Pro 3meta-llama logoLlama 4 Scout
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedNot supported
TemperatureSupportedSupported
Stop sequencesNot supportedSupported
Deterministic seedNot supportedSupported
Verbosity controlNot supportedNot supported

Our take

Solar Pro 3 is 1.1x cheaper for a typical chat. Llama 4 Scout scores higher on the Artificial Analysis Intelligence Index (8.1 vs 7.8). Llama 4 Scout has the larger context window (1.31M vs 131K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is Solar Pro 3 or Llama 4 Scout cheaper?

Solar Pro 3 is cheaper for a typical chat (2K input tokens and 500 output tokens). Solar Pro 3 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens, while Llama 4 Scout costs $0.18 per 1M input tokens and $0.59 per 1M output tokens.

Which has a bigger context window, Solar Pro 3 or Llama 4 Scout?

Llama 4 Scout supports up to 1.31M tokens of context, compared with 131K for Solar Pro 3.

Is Solar Pro 3 smarter than Llama 4 Scout?

On the Artificial Analysis Intelligence Index, Solar Pro 3 scores 7.8 and Llama 4 Scout scores 8.1, putting Llama 4 Scout ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use Solar Pro 3 and Llama 4 Scout at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Solar Pro 3 and Llama 4 Scout answer side by side and keep the better response.

upstage logometa-llama logo

Why choose? Ask both.

Send one prompt to Solar Pro 3 and Llama 4 Scout at the same time. Compare the answers side by side and keep the best one.