Qwen3-235B-A22B-Instruct-2507 is a multilingual, instruction-tuned mixture-of-experts language model based on the Qwen3-235B architecture, with 22B active parameters per forward pass. It is optimized for general-purpose text generation, inc…
Model details →Qwen: Qwen3 235B A22B Instruct 2507 vs StepFun: Step 3.5 Flash (free)
StepFun: Step 3.5 Flash (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token. It is a reasoning model that is incredibly s…
Model details →Side-by-side comparison
| Capability | Qwen: Qwen3 235B A22B Instruct 2507 | StepFun: Step 3.5 Flash (free) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 256K | 🏆 Qwen: Qwen3 235B A22B Instruct 2507 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.07 | $0.00 | 🏆 StepFun: Step 3.5 Flash (free) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.10 | $0.00 | 🏆 StepFun: Step 3.5 Flash (free) |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Qwen: Qwen3 235B A22B Instruct 2507 better than StepFun: Step 3.5 Flash (free)?
StepFun: Step 3.5 Flash (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Qwen: Qwen3 235B A22B Instruct 2507 and StepFun: Step 3.5 Flash (free)?
Input: $0.07 vs $0.00 per 1M tokens. Output: $0.10 vs $0.00 per 1M tokens.
What context windows do Qwen: Qwen3 235B A22B Instruct 2507 and StepFun: Step 3.5 Flash (free) support?
Qwen: Qwen3 235B A22B Instruct 2507 supports up to 262K tokens. StepFun: Step 3.5 Flash (free) supports up to 256K tokens.
Do both Qwen: Qwen3 235B A22B Instruct 2507 and StepFun: Step 3.5 Flash (free) support tool calling?
Qwen: Qwen3 235B A22B Instruct 2507: yes. StepFun: Step 3.5 Flash (free): yes.