# Upstage Solar Pro 4

Upstage Solar Pro 4 costs $0.15 per million input tokens and $0.60 per million output tokens, as of October 22, 2026. Only one of the 6 coding benchmarks behind the index has measured it, and the index needs two, so there is not enough data for a coding score. 44 benchmarks outside the index have a result below.

Page: https://llmbenchmark.ai/models/upstage-solar-pro4
Data from October 22, 2026. Every figure below names the board it was read from and the day.

- Maker: Upstage
- Released: August 10, 2026
- Price per million input tokens: $0.15
- Price per million output tokens: $0.60
- Context window: 524K tokens
- Vibe Coding Index: not enough data (one index benchmark; at least two are needed to rank)

Benchmark results (45 of 195):

- LMArena WebDev: 1371 Elo (source: LMArena WebDev, read October 22, 2026)
- AA Intelligence Index: 28.2 (source: Artificial Analysis (via OpenRouter), read October 22, 2026)
- AA Coding Index: 52.7 (source: Artificial Analysis (via OpenRouter), read October 22, 2026)
- Design Arena: websites: 1176 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: UI components: 1147 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: game dev: 1169 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: data viz: 1177 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: 3D: 1178 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: all code categories: 1182 Elo (source: Design Arena, read October 22, 2026)
- Design Arena: agents building web apps: 1105 Elo (source: Design Arena, read October 22, 2026)
- GPQA Diamond (Artificial Analysis run): 89.1% (source: Artificial Analysis, read October 22, 2026)
- Humanity's Last Exam (Artificial Analysis run): 29.8% (source: Artificial Analysis, read October 22, 2026)
- SciCode: 48.0% (source: Artificial Analysis, read October 22, 2026)
- Long context reasoning (AA-LCR): 70.7% (source: Artificial Analysis, read October 22, 2026)
- ALE-Bench: 179.3 (source: ALE-Bench (Sakana AI), read October 22, 2026)
- LMArena Text: 1388 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: coding: 1438 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: hard prompts: 1400 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: math: 1421 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: instruction following: 1375 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: creative writing: 1317 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: English: 1414 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: non-English: 1363 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Chinese: 1422 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: German: 1358 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Japanese: 1320 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Korean: 1383 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: French: 1400 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Spanish: 1409 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Russian: 1357 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: Polish: 1304 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: multi-turn: 1385 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: longer queries: 1382 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: expert: 1428 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: hard prompts in English: 1427 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: software and IT: 1431 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: mathematical work: 1427 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: science: 1404 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: medicine and healthcare: 1374 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: legal and government: 1383 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: business and finance: 1381 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: writing and language: 1344 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena Text: entertainment and media: 1332 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena WebDev: React: 1363 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)
- LMArena WebDev: HTML: 1371 Elo (source: LMArena (Hugging Face dataset), read October 22, 2026)