Qwen3.5-397B-A17B vs Qwen3.8 Max: Specs & Benchmark Comparison
Qwen3.5-397B-A17B and Qwen3.8 Max both come from Alibaba, Qwen3.5-397B-A17B was released in February 2026, and Qwen3.8 Max followed 6 months later in August 2026. Qwen3.8 Max is the larger model at roughly 2.4 trillion parameters, against 397 billion for Qwen3.5-397B-A17B.
The two models share 6 published benchmarks. Qwen3.8 Max leads on 6 of them. The widest gaps are on Toolathlon, where Qwen3.8 Max scores 72.5% against 38.3%; Humanity's Last Exam, where Qwen3.8 Max scores 43.6% against 28.7%. Averaged across everything we track, Qwen3.5-397B-A17B sits at 73.1% and Qwen3.8 Max at 71.0%.
Qwen3.8 Max is available through an API at $2.50 per million input tokens with a 1M-token context window. We do not track a hosted API for Qwen3.5-397B-A17B, so pricing and context cannot be compared directly.
| Characteristic | Qwen3.5-397B-A17B | Qwen3.8 Max |
|---|---|---|
| Company | Alibaba | Alibaba |
| Release Date | February 15, 2026 | August 2, 2026 |
| Parameters | 397B | 2.4T |
| Multimodal | Yes | Yes |
| Context (input) | — | 1.0M |
| Context (output) | — | 131K |
| Input Price / 1M | — | $2.50 |
| Output Price / 1M | — | $6.25 |
| Average Score | 73.1% | 71.0% |
| Benchmarks | ||
| Toolathlon | 38.3% | 72.5% |
| Humanity's Last Exam | 28.7% | 43.6% |
| WideSearch | 74.0% | 81.9% |
| IFBench | 76.5% | 82.8% |
| GPQA | 88.4% | 92.6% |
| LongBench v2 | 63.2% | 66.3% |
Visual Benchmark Comparison
Verdict
Qwen3.8 Max leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Qwen3.5-397B-A17B — 0.7, Qwen3.8 Max — 0.7.
Qwen3.8 Max is newer: released 8/2/2026 vs 2/15/2026.
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Frequently Asked Questions
Which is better for coding — Qwen3.5-397B-A17B or Qwen3.8 Max?
Which model is cheaper — Qwen3.5-397B-A17B or Qwen3.8 Max?
Which has a larger context window — Qwen3.5-397B-A17B or Qwen3.8 Max?
The Qwen3.5-397B-A17B and Qwen3.8 Max comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Qwen3.5-397B-A17B or Qwen3.8 Max page. See also the complete list of AI model comparisons.