grok-4.20-beta-0309-reasoning vs Qwen2.5 72B Instruct
Qwen2.5 72B Instruct is cheaper on output tokens, while grok-4.20-beta-0309-reasoning offers a larger context window. Choose grok-4.20-beta-0309-reasoning or Qwen2.5 72B Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | grok-4.20-beta-0309-reasoning | Qwen2.5 72B Instruct |
|---|---|---|
| Provider | 302.AI | Alibaba |
| Input / 1M tokens | $2.00 | $1.40 |
| Output / 1M tokens | $6.00 | $5.60 |
| Context window | 2M | 131K |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Mar 2026 | Sep 2024 |
| LMArena (Chatbot Arena) Elo score | 1451 | 1269 |
| LMArena WebDev Elo score | 1375 | — |
| LMArena Vision Elo score | 1263 | — |
| GPQA Diamond score | — | 49.1 |
FAQ
Is grok-4.20-beta-0309-reasoning or Qwen2.5 72B Instruct cheaper?
Qwen2.5 72B Instruct is cheaper on output tokens ($5.60 vs $6.00 per 1M).
Which has the larger context window, grok-4.20-beta-0309-reasoning or Qwen2.5 72B Instruct?
grok-4.20-beta-0309-reasoning has the larger context window (2M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.