Compare / head-to-head
Qwen3.5 27BvsSolar Pro 4
Qwen3.5 27B leads 1 of 1 shared benchmark. Qwen3.5 27B is 1.9x cheaper per token. Solar Pro 4 has the larger context window (512K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 0
Qwen3.5 27B leads
Cheaper per token
Qwen3.5 27B
1.9x cheaper, input + output
Larger context
Solar Pro 4
512K tokens
Provider uptime (30d)
— · —
Qwen · Upstage
Qwen3.5 27B
Qwen
textvision
Solar Pro 4
Upstage · released 2026-08-20
text
Quality
Benchmark matrix
1 shared · 4 only Qwen3.5 27B · 1 only Solar Pro 4| Benchmark | Qwen3.5 27B | Solar Pro 4 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| LMArena Elo | 1408.1 ↗ | 1377.3 ↗ | +30.8 | Qwen3.5 27B |
| Only Qwen3.5 27B reports · 4 | ||||
| SWE-bench Verified | 75% ↗ | not reported | — | — |
| GPQA Diamond | 85.5% ↗ | not reported | — | — |
| MMLU-Pro | 86.1% ↗ | not reported | — | — |
| AIME 2026 | 91.7% ↗matharena ⚠ | not reported | — | — |
| Only Solar Pro 4 reports · 1 | ||||
| Artificial Analysis Intelligence Index | not reported | 42 ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Qwen3.5 27B minus Solar Pro 4 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Qwen3.5 27B | Solar Pro 4 | Edge |
|---|---|---|---|
| Context window | 262K tokens | 512K tokens | Solar Pro 4 |
| Max output | — | — | — |
| Input price / 1M | $0.086 ↗ | $0.3 ↗ | Qwen3.5 27B |
| Output price / 1M | $0.688 ↗ | $1.2 ↗ | Qwen3.5 27B |
| Cached input / 1M | — | $0.06 ↗ | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $0.774 | $1.5 | Qwen3.5 27B |
| Modalities | text · vision | text | Qwen3.5 27B |
| Released | — | 2026-08-20 | — |
| Cited benchmark scores | 5 | 2 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Qwen3.5 27B vs …
Models sharing the most benchmarksMore matchups
Solar Pro 4 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Qwen3.5 27B and Solar Pro 4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.