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...
Model details →Qwen: Qwen3.5 397B A17B vs StepFun: Step 3.7 Flash
StepFun: Step 3.7 Flash wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...
Model details →Side-by-side comparison
| Capability | Qwen: Qwen3.5 397B A17B | StepFun: Step 3.7 Flash | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 262K | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.39 | $0.20 | 🏆 StepFun: Step 3.7 Flash |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $2.34 | $1.15 | 🏆 StepFun: Step 3.7 Flash |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Qwen: Qwen3.5 397B A17B better than StepFun: Step 3.7 Flash?
StepFun: Step 3.7 Flash wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Qwen: Qwen3.5 397B A17B and StepFun: Step 3.7 Flash?
Input: $0.39 vs $0.20 per 1M tokens. Output: $2.34 vs $1.15 per 1M tokens.
What context windows do Qwen: Qwen3.5 397B A17B and StepFun: Step 3.7 Flash support?
Qwen: Qwen3.5 397B A17B supports up to 262K tokens. StepFun: Step 3.7 Flash supports up to 262K tokens.
Do both Qwen: Qwen3.5 397B A17B and StepFun: Step 3.7 Flash support tool calling?
Qwen: Qwen3.5 397B A17B: yes. StepFun: Step 3.7 Flash: yes.
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