Qwen3.5 397B A17B vs Seed 1.6 Flash
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Qwen3.5 397B A17B and Seed 1.6 Flash.
Qwen3.5 397B A17B
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. It delivers...
Seed 1.6 Flash
Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of...
Technical Specifications
| Specification | Qwen3.5 397B A17B | Seed 1.6 Flash |
|---|---|---|
| Provider | Alibaba | ByteDance |
| Context Window | 256,000 tokens | 262,144 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | self hostable | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2026-02-16 | 2025-12-23 |
API Pricing Comparison
Input Price per Million Tokens
Qwen3.5 397B A17B
$0.39
Seed 1.6 Flash
$0.07
Output Price per Million Tokens
Qwen3.5 397B A17B
$2.45
Seed 1.6 Flash
$0.30
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Qwen3.5 397B A17B Quirks & Gotchas
No developer gotchas reported.
Seed 1.6 Flash Quirks & Gotchas
No developer gotchas reported.