Solar Pro 4
The 17th most-used model on the router over the last 7 days, with 1.3% of tokens. Weekly share peaked at 1.1% in the week of Aug 31, 2026, with 2.7T tokens processed since Aug 10, 2026.
- Launch
- Aug 10, 2026
- Context
- 512k tokens
- Modality
- text → text
- Reasoning
- yes
- License
- Open weights
- Input
- $0.09 / 1M
- Output
- $0.36 / 1M
Weekly token share
Share of the router's weekly volume, since the first week with volume
See the numbers
| Week | Share |
|---|---|
| Aug 31, 2026 | 1.052% |
| Aug 24, 2026 | 0.574% |
| Aug 17, 2026 | 0.615% |
| Aug 10, 2026 | 0.380% |
Debuted in the week of Aug 10, 2026 and peaked at 1.1% 3 weeks later. The latest full week is the peak so far. Over the last 7 days, which already reach into the current week, it stands at 1.3%, above the weekly peak.
What this model is used for new
Tasks where the model ranks among the leaders, and its share of each
Ranks among the leaders in 3 of the 29 classified tasks. Its largest share is in DevOps, 4.0% of the task's tokens; in the heaviest task where it appears, frontend and UI (2.9% of classified volume), it holds 3.3%.
Snapshot of the rolling 7-day window through Sep 10, 2026. Share: the model's tokens in the task over the task's total tokens. Weight: the task's share of classified volume.
Where to run it
Endpoints in the source's catalog, from cheapest to most expensive on input
| Provider | Input | Output | Context | Quantization | Zero retention |
|---|---|---|---|---|---|
| Upstage | $0.09 | $0.36 | 512k | not reported | yes |
| Upstage | $0.09 | $0.36 | 512k | not reported | yes |
2 endpoints across 1 provider. 2 offer zero data retention.
Prices in US dollars per million tokens, from the latest archived endpoint catalog.
Benchmarks
Artificial Analysis indexes and benchmarks run by the source, with cost per task
The source has not run its own benchmarks on this model.
Artificial Analysis indexes, exposed by the catalog; benchmarks run by the source and archived on Sep 11, 2026. The gray mark is the median of evaluated models.
Against the week's largest models
The five largest proprietary and five largest open-weights models over the last 7 days
| Model | Lab | 7-day share | Blended price | Context | Intelligence | Weeks in top 10 |
|---|---|---|---|---|---|---|
| Proprietary | ||||||
| GPT-5.6 LunaOpenAI | OpenAI | 11.5% | $0.45 | 1M | 37.5 | 6 |
| Gemini 3.8 FlashGoogle | 2.1% | $1.50 | 1M | 41.2 | 0 | |
| Muse Spark 1.3 ContributorMeta | Meta | 1.5% | $0.125 | 1M | — | 0 |
| Claude Opus 5Anthropic | Anthropic | 1.4% | $10.00 | 1M | 50.7 | 1 |
| GPT-5.6 SolOpenAI | OpenAI | 1.4% | $4.00 | 1M | 47.1 | 0 |
| Open weights | ||||||
| Hy4 previewTencent | Tencent | 15.5% | $1.25 | 1M | — | 1 |
| DeepSeek V4 Flash 0731DeepSeek | DeepSeek | 10.0% | $0.094 | 1.31M | 34.5 | 5 |
| GLM 5.3 FlashZ.ai (GLM) | Z.ai (GLM) | 10.0% | $0.237 | 1.31M | 41.9 | 2 |
| MiMo-V2.5Xiaomi | Xiaomi | 4.2% | $0.175 | 1M | 22.3 | 15 |
| DeepSeek V4 Flash 0423DeepSeek | DeepSeek | 3.9% | $0.111 | 1M | 24.8 | 19 |
| Solar Pro 4this pageUpstage | Upstage | 1.3% | $0.158 | 512k | — | 0 |
Share over the last 7 days (Sep 4, 2026 to Sep 10, 2026). Blended price in US dollars per million tokens, weighted 75% input and 25% output. A dash means the number is not published, not zero.