In this head-to-head showdown, Upstage: Solar Pro 4 is more budget-friendly at $0.12/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
3 benchmarks evaluated across capability, speed, and cost
Auto-discovered from OpenRouter (upstage/solar-pro4). Preview until a second source matches.
01.AI ultra-fast reasoning model delivering top LiveBench efficiency.
Single model data
No latency data
$0.12 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Upstage: Solar Pro 4 | Yi-Lightning | Advantage Delta |
|---|---|---|---|
| Preference Elo | — | — | |
| Coding Elo | — | — | |
| LiveBench | — | — | |
| SWE-bench | — | — | |
| GPQA Diamond | — | — | |
| Time to first token | — | — | |
| Output speed | — | 130 tok/s | — |
| Input price | $0.03/1M | $0.14/1M | +$0.11/1M |
| Output price | $0.12/1M | $0.14/1M | +$0.02/1M |
| Context window | +508k |
Simulate monthly production API costs in USD (US Dollar).
Upstage: Solar Pro 4 is estimated to save $4.15/month ($50/year).
Need SWE-bench on both sides.
Lower output list price ($0.12/1M).
Need TTFT on both sides.
Larger window (524k).
Yi-Lightning is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | Upstage: Solar Pro 4 | Lower output list price ($0.12/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Upstage: Solar Pro 4 | Larger window (524k). |
| Screenshots / vision | Yi-Lightning | Yi-Lightning is the side marked multimodal in the catalog. |
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