Upstage, unknown
Solar Pro 4
Solar Pro 4 by Upstage ranks 122nd of 368 ranked models on the Noometry Index as of November 2026, with a score of 43.0. Its strongest category is reasoning, where it ranks 101st.
Last verified
Specifications
- Noometry rank
- #122 of 368
- Index score
- 43.0
- Evidence
- Confirmed 18 results
- Provider
Upstage- Released
- Unknown
- Weights
- Unknown
- Reasoning
- Unknown
- Context window
- —
- Max output
- —
- Input price
- Not listed
- Output price
- Not listed
- Blended price
- Not listed
- Output speed
- Not measured
- Value
- Not ranked
- Knowledge cutoff
- Unknown
Category scores
Each category score combines every public result we have in that category.
- Coding 40.3
- Reasoning 31.3
- Math 41.0
- Knowledge 40.8
- Multilingual 47.6
- Instruction Following 72.4
- Long Context 42.1
- Writing & Preference 56.8
| Category | Score | Rank | Results |
|---|---|---|---|
| Coding | 40.3 | #156 | 2 |
| Reasoning | 31.3 | #101 | 1 |
| Math | 41.0 | #127 | 1 |
| Knowledge | 40.8 | #138 | 1 |
| Multilingual | 47.6 | #136 | 1 |
| Instruction Following | 72.4 | #139 | 1 |
| Long Context | 42.1 | #130 | 1 |
| Writing & Preference | 56.8 | #138 | 3 |
Strengths and weaknesses
Categories where Solar Pro 4 places highest and lowest among the models ranked in each, with its score against that category's median.
Strongest categories
Weakest categories
| Category | Score | vs median | Rank |
|---|---|---|---|
| Multilingual | 47.6 | +0.8 | #136 of 294, top 47% |
| Instruction Following | 72.4 | +1.4 | #139 of 308, top 46% |
| Coding | 40.3 | +1.1 | #156 of 346, top 46% |
Closest competitors
The models ranked just above and below Solar Pro 4. When scores are this close, price and speed are often the better way to choose.
| Model | Rank | Score | Blended $/M | Speed | |
|---|---|---|---|---|---|
| GPT-5.5 Instant | #118 | 43.4 | — | — | Compare |
| GPT-5.2 Codex | #119 | 43.3 | $4.81 | — | Compare |
| GLM-4.7 | #120 | 43.1 | $1 | — | Compare |
| Step 3.5 Flash | #121 | 43.0 | $0.15 | — | Compare |
| Kimi K2.7 Code | #123 | 43.0 | $1.71 | — | Compare |
| Longcat Flash Chat | #124 | 42.9 | — | 69 | Compare |
| Qwen3.5 122B-A10B | #125 | 42.8 | $1.10 | — | Compare |
| DeepSeek-R1 | #126 | 42.8 | $0.91 | 10 | Compare |
Sponsored placements are available on pages like this one. Advertise on Noometry
Benchmark results
Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.
Coding
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena WebDev | 1370 | #87 of 119, top 74% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Coding | 1437 | #102 of 291, top 36% | Solar Pro 4 | LMArena | 2026-10-28 |
Reasoning
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Hard Prompts | 1400 | #126 of 294, top 43% | Solar Pro 4 | LMArena | 2026-10-28 |
Math
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Math | 1415 | #108 of 283, top 39% | Solar Pro 4 | LMArena | 2026-10-28 |
Knowledge
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Expert | 1426 | #103 of 271, top 39% | Solar Pro 4 | LMArena | 2026-10-28 |
Multilingual
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Non-English | 1363 | #136 of 294, top 47% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Chinese | 1425 | #126 of 281, top 45% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena French | 1405 | #122 of 229, top 54% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena German | 1356 | #131 of 236, top 56% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Japanese | 1323 | #122 of 218, top 56% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Korean | 1390 | #73 of 217, top 34% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Russian | 1354 | #145 of 280, top 52% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Spanish | 1414 | #105 of 229, top 46% | Solar Pro 4 | LMArena | 2026-10-28 |
Instruction Following
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Instruction Following | 1375 | #130 of 294, top 45% | Solar Pro 4 | LMArena | 2026-10-28 |
Long Context
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Longer Query | 1383 | #132 of 287, top 46% | Solar Pro 4 | LMArena | 2026-10-28 |
Writing & Preference
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| LMArena Text | 1389 | #131 of 294, top 45% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Creative Writing | 1318 | #157 of 292, top 54% | Solar Pro 4 | LMArena | 2026-10-28 |
| LMArena Multi-Turn | 1387 | #134 of 292, top 46% | Solar Pro 4 | LMArena | 2026-10-28 |
Compare Solar Pro 4
- Solar Pro 4 vs Step 3.5 Flash
- Solar Pro 4 vs Kimi K2.7 Code
- Solar Pro 4 vs GLM-4.7
- Solar Pro 4 vs Longcat Flash Chat
- Solar Pro 4 vs GPT-5.2 Codex
- Solar Pro 4 vs Qwen3.5 122B-A10B
- Solar Pro 4 vs GPT-6 Astra
- Solar Pro 4 vs Claude Opus 5.5
- Solar Pro 4 vs Gemini 4 Argon
- Solar Pro 4 vs Kimi K3
- Solar Pro 4 vs DeepSeek V4.1 Flash
- Solar Pro 4 vs Muse Wonder
- Solar Pro 4 vs Qwen3.8 Max
- Solar Pro 4 vs Grok 4.6
Other Upstage models
Frequently asked questions
How good is Solar Pro 4?
Solar Pro 4 by Upstage ranks 122nd of 368 ranked models on the Noometry Index as of November 2026, with a score of 43.0. Its strongest category is reasoning, where it ranks 101st.
Is Solar Pro 4 open source?
Upstage has not published downloadable weights for Solar Pro 4 that we can confirm.
What are Solar Pro 4's strengths and weaknesses?
Relative to other ranked models, Solar Pro 4 places best in reasoning, math, knowledge and lowest in multilingual, instruction following, coding.
What is Solar Pro 4 best at?
Its best category is reasoning, where it ranks 101st on Noometry.