Compare / head-to-head
Grok 4.3vsSolar Pro 4
Grok 4.3 leads 1 of 1 shared benchmark. Solar Pro 4 is 2.5x cheaper per token. Grok 4.3 has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 0
Grok 4.3 leads
Cheaper per token
Solar Pro 4
2.5x cheaper, input + output
Larger context
Grok 4.3
1M tokens
Provider uptime (30d)
— · —
xAI · Upstage
Grok 4.3
xAI
textvision
Solar Pro 4
Upstage · released 2026-08-20
text
Quality
Benchmark matrix
1 shared · 5 only Grok 4.3 · 1 only Solar Pro 4| Benchmark | Grok 4.3 | Solar Pro 4 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| LMArena Elo | 1397.7 ↗ | 1377.3 ↗ | +20.4 | Grok 4.3 |
| Only Grok 4.3 reports · 5 | ||||
| GPQA Diamond | 88.8% ↗epoch | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 14.6% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 42.8% ↗epoch | not reported | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 93.3% ↗epoch | not reported | — | — |
| SimpleQA Verified | 33.2% ↗epoch | 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 Grok 4.3 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 | Grok 4.3 | Solar Pro 4 | Edge |
|---|---|---|---|
| Context window | 1M tokens | 512K tokens | Grok 4.3 |
| Max output | — | — | — |
| Input price / 1M | $1.25 ↗ | $0.3 ↗ | Solar Pro 4 |
| Output price / 1M | $2.5 ↗ | $1.2 ↗ | Solar Pro 4 |
| Cached input / 1M | $0.2 ↗ | $0.06 ↗ | Solar Pro 4 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $3.75 | $1.5 | Solar Pro 4 |
| Modalities | text · vision | text | Grok 4.3 |
| Released | — | 2026-08-20 | — |
| Cited benchmark scores | 6 | 2 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Grok 4.3 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 Grok 4.3 and Solar Pro 4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.