Grok 4 Fast vs Qwen3.5-397B-A17B: Specs & Benchmark Comparison
| Characteristic | Grok 4 Fast | Qwen3.5-397B-A17B |
|---|---|---|
| Company | xAI | Alibaba |
| Release Date | August 27, 2025 | February 15, 2026 |
| Parameters | — | 397B |
| Multimodal | Yes | Yes |
| Context (input) | 2.0M | — |
| Context (output) | 30K | — |
| Input Price / 1M | $0.20 | — |
| Output Price / 1M | $0.50 | — |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| HMMT 2025 | 0.9 | 0.9 |
Visual Benchmark Comparison
Grok 4 Fast
Qwen3.5-397B-A17B
HMMT 20250.9 vs 0.9
0.9
0.9
Verdict
Qwen3.5-397B-A17B leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Grok 4 Fast — 0.8, Qwen3.5-397B-A17B — 0.9.
Recency
Qwen3.5-397B-A17B is newer: released 2/15/2026 vs 8/27/2025.
More About These Models
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Frequently Asked Questions
Which is better for coding — Grok 4 Fast or Qwen3.5-397B-A17B?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Grok 4 Fast or Qwen3.5-397B-A17B?
API pricing data is available on the individual model pages.
Which has a larger context window — Grok 4 Fast or Qwen3.5-397B-A17B?
Context window data is available on the individual model pages.
The Grok 4 Fast and Qwen3.5-397B-A17B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4 Fast or Qwen3.5-397B-A17B page. See also the complete list of AI model comparisons.