Qwen3.8 Flash and Step 3.7 Flash side by side: specs, capabilities, parameters, and live pricing from the EmpirioLabs catalog.
Alibaba Cloud 
StepFun Text GenerationQwen3.8 Flash from Alibaba Cloud and Step 3.7 Flash from StepFun are both in the Text Generation category, available through the EmpirioLabs API.
| Spec | Qwen3.8 Flash | Step 3.7 Flash |
|---|---|---|
| Model ID | qwen3-8-flash | step-3-7-flash |
| Author | Alibaba Cloud | StepFun |
| Released | Aug 26, 2026 | May 28, 2026 |
| Context window | 983.6K tokens | 256K tokens |
| Max output | 131,072 tokens | 131,072 tokens |
| Input | Text Image Video | Text Image Video |
| Output | Text | Text |
| Structured output | JSON Schema | JSON Mode |
| Region | Singapore | International |
| Endpoints | POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1beta/models/qwen3-8-flash:generateContent | POST /v1/chat/completions POST /v1/responses POST /v1/messages POST /v1beta/models/step-3-7-flash:generateContent |
| Capabilities |
Live rates from the EmpirioLabs catalog for both models. Each rate card always matches what the API charges.
Request parameters each model lists on EmpirioLabs, with the allowed values or range where one applies. A dash marks a parameter the model does not list.
| Parameter | Qwen3.8 Flash | Step 3.7 Flash |
|---|---|---|
| temperature | 0 to 1.99 Default: 0.7 | 0 to 2 Default: 0.5 |
| top_p | 0 to 1 Default: 0.9 | 0.01 to 1 Default: 0.9 |
| max_tokens | 1 to 131072 | 1 to 131072 Default: 4096 |
| stop | string | array |
| enable_thinking | boolean Default: true | - |
| reasoning_effort | none, low, medium, high, max | low, medium, high Default: low |
| thinking_budget | 1 to 262144 | - |
| preserve_thinking | boolean Default: true | - |
| seed | 0 to 2147483647 | - |
| top_k | 1 to 100 | - |
| presence_penalty | -2 to 2 | - |
| repetition_penalty | 0.1 to 2 | - |
| n | 1 to 4 Default: 1 | - |
| logprobs | boolean Default: false | - |
| top_logprobs | 0 to 5 Default: 0 | - |
| vl_high_resolution_images | boolean Default: true | - |
Text, image, and video input are supported. Web search, web extractor, code interpreter, text-to-image search, and image-to-image search are optional built-in tools exposed through tool_* parameters. Web search, text-to-image search, and image-to-image search add $0.02 for each invoked call; web extractor and code interpreter run at no extra cost. Web extractor requires web search, and both web extractor and code interpreter require thinking. A single request can invoke a tool more than once, and each invoked call is billed. Thinking tokens are billed as output tokens.
Supports text, image, and video input with 256K context, function tools, JSON object mode, reasoning_effort low, medium, or high, and optional Linkup web search. Video input supports MP4 under 128 MB, with clips under 5 minutes recommended.
Qwen3.8 Flash serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id qwen3-8-flash. Both models are called through the same endpoint. Set model to qwen3-8-flash or step-3-7-flash. Get an API key from the EmpirioLabs dashboard.
curl https://api.empiriolabs.ai/v1/chat/completions \
-H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "qwen3-8-flash",
"messages": [
{"role": "user", "content": "Write a haiku about the ocean."}
]
}'Prompt tests and comparison runs that cover both models.
Qwen3.8 Flash is the newer release (Aug 26, 2026); Step 3.7 Flash was released on May 28, 2026. Qwen3.8 Flash has the larger context window: 983.6K tokens, against 256K for Step 3.7 Flash. Capabilities listed only for Qwen3.8 Flash: multimodal, code interpreter. The specs, rate cards, and parameters on this page come from the live EmpirioLabs catalog.
Qwen3.8 Flash is the newer release (Aug 26, 2026); Step 3.7 Flash was released on May 28, 2026.
Qwen3.8 Flash lists the lower rate for Input (per 1M prompt tokens) and Output (per 1M generated tokens). Both live rate cards are on this page and always match what the API charges.
Yes. Both models use POST /v1/chat/completions with the same EmpirioLabs API key, so most integrations switch by changing the model value. Check the parameters table on this page first if you rely on a model-specific parameter.
Yes. Open each model in the EmpirioLabs playground and run the same prompt on both, with the parameters the API exposes.
Check out our pricing or reach out if you want your own model deployed on our stack.
