Qwen3.5 397B A17B
Alibaba · Multimodal · Released Feb 2026
Qwen3.5 397B A17B is a 397-billion-parameter text language model from Alibaba's Qwen3.5 generation with a 262K token context window.
- Strengths
- The model handles complex reasoning, long-form generation, and nuanced language tasks across diverse domains with the capacity of a large-scale parameter count.
- Best for
- Applications requiring deep reasoning, comprehensive knowledge, and sophisticated language understanding where the larger parameter count justifies latency trade-offs.
- Limitations
- The 262K context window is narrower than mid-tier variants like Qwen3.5 Plus, and as a dense model from the Qwen3.5 generation it is older than the newer Qwen3.6 series released in April 2026.
Input / 1M
$0.55
Output / 1M
$3.50
Cached input / 1M
$0.225
Context window
262K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in increased 10.0% out decreased 2.8%
- 90d
- in increased 41.0% out increased 49.6%
- 1y
- in increased 41.0% out increased 49.6%
- Since launch
- in increased 41.0% out increased 49.6%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 8 Sep 2026 | $0.55 | $3.50 | $0.225 | Imported from OpenRouter | openrouter.ai |
| 6 Sep 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |
| 3 Sep 2026 | $0.55 | $3.50 | $0.225 | Imported from OpenRouter | openrouter.ai |
| 26 Aug 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |
| 24 Aug 2026 | $0.5 | $3.60 | $0.3 | Imported from OpenRouter | openrouter.ai |
| 14 Aug 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |
| 13 Aug 2026 | $0.5 | $3.60 | $0.3 | Imported from OpenRouter | openrouter.ai |
| 11 Aug 2026 | $0.5 | $3.60 | $0.3 | Imported from OpenRouter | openrouter.ai |
| 10 Aug 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |
| 9 Aug 2026 | $0.5 | $3.60 | $0.3 | Imported from OpenRouter | openrouter.ai |
| 17 Jul 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |
| 15 Jul 2026 | $0.45 | $3.00 | $0.225 | Imported from OpenRouter | openrouter.ai |
| 7 Jul 2026 | $0.385 | $2.45 | $0.111 | Imported from OpenRouter | openrouter.ai |
| 16 Jun 2026 | $0.385 | $2.45 | — | Imported from OpenRouter | openrouter.ai |
| 11 Jun 2026 | $0.39 | $2.34 | — | Imported from OpenRouter | openrouter.ai |