Qwen3.8 Max (Qwen) and Grok 4.6 (xAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.
Snapshot as of 17 August 2026
As of 17 August 2026, Qwen3.8 Max holds the stronger ModelCap Index position (#5 vs #10); and Qwen3.8 Max offers the longer context window (1M vs 500K tokens).
Evidence: 4 public benchmark observations across 4 boards · 5 public benchmark observations across 5 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.
Benchmark scores: Qwen3.8 Max vs Grok 4.6
Public benchmark boards where Qwen3.8 Max or Grok 4.6 has a published result
Qwen3.8 Max ranks higher on the ModelCap Index as of 17 August 2026: #5 against #10. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.
Is Qwen3.8 Max cheaper than Grok 4.6?
Both list the same output price, $6.00/1M tokens, with input at $2.00/1M and $2.00/1M respectively.
Which has the bigger context window, Qwen3.8 Max or Grok 4.6?
Qwen3.8 Max has the larger context window: 1M tokens against 500K.
Which is better for coding, Qwen3.8 Max or Grok 4.6?
Arena coding: Qwen3.8 Max 1529, Grok 4.6 1512 — Qwen3.8 Max leads.
Are Qwen3.8 Max and Grok 4.6 open-weight models?
Qwen3.8 Max: API only. Grok 4.6: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.
Where can I run Qwen3.8 Max and Grok 4.6?
ModelCap currently lists 1 API provider for Qwen3.8 Max and 1 for Grok 4.6, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.
How current is this Qwen3.8 Max vs Grok 4.6 comparison?
Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.