Levelmodel
ClassLLM
Parametersnot in the notes
Contextnot in the notes
Released11 Aug 2026
Opennessunknown
Runs onnot in the notes
Statusactive
Benchmark Results
vendor-reportedindependent
Arena Text leaderboardhuman preference arena
solar-pro4independent
no score in the notes
rank 182, Arena Text overall
Artificial Analysis Intelligence Index v4.3.2composite index
listed on AA as Solar Pro 45; asterisk on pageindependent
28
03060
Score in index. Higher is better.
AA leaderboard, 205 current models
LiveCodeBenchcoding
vendor-reported
87.8
050100
Score in %. Higher is better.
rank 1, BenchLM main table
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).
Lineage
successor
Solar Pro 3 is the parent (successor)medium confidencenotesWhere this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 2 models. Confidence and evidence are the notes' own.
R&D Topics
Identity
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- not in the notes
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Context length
- not in the notes
- Input
- text
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- unknown
- Licence
- not in the notes sources
- Access routes
- API, cloud marketplace
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- API via Upstage Console, AWS, Azure, Snowflake, on-prem. AA lists a 'Solar Pro 45' entry with 512k context.
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Industry Use Cases
No industry use case links this model.
Links
DeveloperUpstagestartup, South Korea
Upstagestartup, South KoreaModelSolar Pro 4Upstage, LLM
Solar Pro 4Upstage, LLMR&D TopicsAgents and Tool UseRegional or National Foundation Model Training (Continued Pretraining at 7B to 70B)
Use CasesIndonesian and Regional-Language LLMsPublic SectorBanking Customer Service AssistantsFinanceCitizen Service AssistantsPublic SectorProcess Optimisation and Advanced Process ControlIndustrial+1 moreUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs It
PT Amman Mineral Nusa Tenggara (AMMAN)In production, 8 Jul 2026
PT PegadaianIn production, 5 Jun 2026
Bank Central Asia (BCA)In production, 16 Mar 2026Bank Central Asia (BCA)In production, 16 Mar 2026+14 moreDeployments of these use cases; none names this model.
PT Amman Mineral Nusa Tenggara (AMMAN)In production, 8 Jul 2026PT PegadaianIn production, 5 Jun 2026Bank Central Asia (BCA)In production, 16 Mar 2026Bank Central Asia (BCA)In production, 16 Mar 2026+14 moreDeployments of these use cases; none names this model.Models 1
Organisations 1
Sources
- The Upstage Blog | Upstage AI upstage.ai https://www.upstage.ai/blog
- Text Arena: LLM Rankings & AI Model Benchmarks arena.ai https://arena.ai/leaderboard/chat/text
- LLM Leaderboard - Comparison of AI models from OpenAI, Anthropic, Google, SpaceXAI & others | Artificial Analysis artificialanalysis.ai https://artificialanalysis.ai/leaderboards/models
- LiveCodeBench Leaderboard: Solar Pro 4 Leads at 87.8% benchlm.ai https://www.benchlm.ai/benchmarks/livecodebench
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Solar Pro 4", https://aurion.semai.id/models/upstage-solar-pro-4/, records of October 2026.