Compare / head-to-head
Grok 4.20 ReasoningvsQwen3.8 2.4T-A95B
Qwen3.8 2.4T-A95B leads 1 of 1 shared benchmark. Grok 4.20 Reasoning is 1.8x cheaper per token. Both offer a 1M-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 1
Qwen3.8 2.4T-A95B leads
Cheaper per token
Grok 4.20 Reasoning
1.8x cheaper, input + output
Larger context
Tie
both 1M tokens
Provider uptime (30d)
— · —
xAI · Qwen
Grok 4.20 Reasoning
xAI · released 2026-03-09
textvision
Qwen3.8 2.4T-A95B
Qwen · released 2026-08-12
text
Quality
Benchmark matrix
1 shared · 4 only Grok 4.20 Reasoning · 3 only Qwen3.8 2.4T-A95B| Benchmark | Grok 4.20 Reasoning | Qwen3.8 2.4T-A95B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| GPQA Diamond | 89.3% ↗epoch | 92.6% ↗ | -3.3 pt | Qwen3.8 2.4T-A95B |
| Only Grok 4.20 Reasoning reports · 4 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | 17.1% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 44.9% ↗epoch | not reported | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 92.2% ↗epoch | not reported | — | — |
| SimpleQA Verified | 30.2% ↗epoch | not reported | — | — |
| Only Qwen3.8 2.4T-A95B reports · 3 | ||||
| BabyVision | not reported | 82% ↗ | — | — |
| OSWorld | not reported | 86.1% ↗ | — | — |
| PaperBench | not reported | 93% ↗ | — | — |
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 4.20 Reasoning minus Qwen3.8 2.4T-A95B 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 4.20 Reasoning | Qwen3.8 2.4T-A95B | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1M tokens | Tie |
| Max output | — | 131K tokens | — |
| Input price / 1M | $1.25 ↗ | $1.65 ↗ | Grok 4.20 Reasoning |
| Output price / 1M | $2.5 ↗ | $4.95 ↗ | Grok 4.20 Reasoning |
| Cached input / 1M | $0.2 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $3.75 | $6.6 | Grok 4.20 Reasoning |
| Modalities | text · vision | text | Grok 4.20 Reasoning |
| Released | 2026-03-09 | 2026-08-12 | — |
| Cited benchmark scores | 5 | 4 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Grok 4.20 Reasoning vs …
Models sharing the most benchmarksMore matchups
Qwen3.8 2.4T-A95B vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Grok 4.20 Reasoning and Qwen3.8 2.4T-A95B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.