Model comparison
Grok 4.20 Reasoning vs Qwen3.6 Plus
Compare Grok 4.20 Reasoning vs Qwen3.6 Plus API pricing: input/output token costs, cache pricing, context windows, workload estimates, and routing fit.
Grok 4.20 Reasoning
xai · grok-4.20-0309-reasoning
- Input
- $1.25
- Output
- $2.5
- Context
- 1M
Qwen3.6 Plus
openrouter · openrouter/qwen/qwen3.6-plus
- Input
- $0.325
- Output
- $1.95
- Context
- 1M
Quick take
Qwen3.6 Plus has the lower input price at $0.325 per 1M input tokens. Qwen3.6 Plus is cheaper for the example blended workload below. Grok 4.20 Reasoning has the larger context window at 1M tokens.
Choose Grok 4.20 Reasoning if...
- Grok 4.20 Reasoning gives more room for long generated answers, reports, or code output.
- Grok 4.20 Reasoning is stronger when the same large prompt or document is reused because it supports prompt caching.
Choose Qwen3.6 Plus if...
- Qwen3.6 Plus is the better default for cost-sensitive traffic and repeated high-volume calls.
- Qwen3.6 Plus is required if images, screenshots, or visual documents are part of the workflow.
Example workload cost
Estimates use input tokens plus 20% output tokens. They exclude provider discounts, cache hits, and tool/search surcharges.
| Workload | Grok 4.20 Reasoning | Qwen3.6 Plus | Cheaper |
|---|---|---|---|
| 1M input + 200K output | $1.75 | $0.72 | Qwen3.6 Plus |
| 10M input + 2M output | $17.50 | $7.15 | Qwen3.6 Plus |
| 100M input + 20M output | $175.00 | $71.50 | Qwen3.6 Plus |
Context, output, and capability fit
Grok 4.20 Reasoning provides the larger context window. Check max output separately when the task needs long reports, code generation, or full-document rewrites.
- Grok 4.20 Reasoning max output
- 1M
- Qwen3.6 Plus max output
- 65.5K
- Grok 4.20 Reasoning features
- prompt caching, function calling
- Qwen3.6 Plus features
- function calling, vision
Risk notes for Grok 4.20 Reasoning
- No major capability risk is flagged in this snapshot, but provider pages should still be verified before production routing.
Risk notes for Qwen3.6 Plus
- No prompt caching in this snapshot: repeated long-context calls may be more expensive.
Routing tags
frontierreasoningagentslong-contextmultimodalragcodingopen-weightbudgetlocal-open