qwen/qwen3.5-397b-a17bQwen3.5 397B-A17B is Alibaba’s open-weights AI model, released Feb 15, 2026. It costs $0.39/M input and $2.34/M output tokens, and handles a 262K-token context window.
The Qwen3.5 series 397B-A17B native vision-language model is built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency.
Scores on standardized evaluations. Higher is better — and rank shows where Qwen3.5 397B-A17B lands among all models tracked on Model Beat.
Graduate-level scientific reasoning
Frontier of human expert knowledge
Scientific research coding
Olympiad-qualifier math
Tool-agent-user reliability
The Qwen3.5 series 397B-A17B native vision-language model is built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency.
Qwen3.5 397B-A17B is an AI model developed by Alibaba, part of the Qwen family, released Feb 15, 2026.
Qwen3.5 397B-A17B's list price from Alibaba is $0.39 per million input tokens and $2.34 per million output tokens.
Qwen3.5 397B-A17B supports a context window of up to 262K tokens.
On standardized evaluations tracked by Epoch AI, Qwen3.5 397B-A17B scores 86.4% on GPQA Diamond, 88.9% on AIME 2024/2025, 83.9% on τ²-bench.
Qwen3.5 397B-A17B is released with open weights (Open weights (unrestricted)), so the model can be downloaded and self-hosted.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Sep 17, 2026.