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Upstage: Solar Pro 3 (free)
Server-rendered model summary page for indexing/share previews. Use the interactive explorer for full filtering and comparison.
Match confidence: UnmatchedSource type: openrouter_only
Context window
128K
Arena overall rank
—
Input price
$0.000 / 1M
Output price
$0.000 / 1M
Identifiers & provenance
- Primary ID
- upstage/solar-pro-3:free
- OpenRouter ID
- upstage/solar-pro-3:free
- Canonical slug
- upstage/solar-pro-3
Source semantics
- Arena rank is a human-preference leaderboard signal, not a universal truth metric.
- OpenRouter usage/popularity reflects adoption/traffic, not benchmark quality.
- Pricing fields may differ by provider and can include extra modes beyond prompt/completion.
Read more on Methodology & data sources.
Description
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. Optimized for Korean with English and Japanese support.
Raw fields snapshot
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"description": "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. Optimized for Korean with English and Japanese support.",
"created": 1769481200,
"canonical_slug": "upstage/solar-pro-3",
"hugging_face_id": "",
"source_type": "openrouter_only",
"context_length": 128000,
"max_completion_tokens": null,
"is_moderated": false,
"architecture": {
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"tokenizer": "Other",
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"output_modalities": [
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"modality": "text->text",
"tokenizer": "Other",
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"supported_parameters": [
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"top_p": null,
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"top_provider": {
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"pricing": {
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"PPM": {
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"openrouter_raw": {
"id": "upstage/solar-pro-3:free",
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"hugging_face_id": "",
"name": "Upstage: Solar Pro 3 (free)",
"created": 1769481200,
"description": "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. Optimized for Korean with English and Japanese support.",
"context_length": 128000,
"architecture": {
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"supported_parameters": [
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"expiration_date": "2026-03-22"
}
}