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Qwen3.8 Max Preview vs Step 3.7 Flash

Output tokens cost $1.01 per million on Qwen3.8 Max Preview and $1.32 per million on Step 3.7 Flash. Input tokens cost $0.34 per million on Qwen3.8 Max Preview and $0.22 per million on Step 3.7 Flash. Cached input tokens are billed at $0.03 per million on Qwen3.8 Max Preview and $0.04 per million on Step 3.7 Flash. Context lengths are 983,616 tokens on Qwen3.8 Max Preview and 256,000 tokens on Step 3.7 Flash.

QwenQwen3.8 Max PreviewStepFunStep 3.7 Flash
+ Add model · 2/4
Qwen logo
Qwen3.8 Max Preview
Qwen · text, image → text

Qwen 3.8 Max Preview(Qwen3.8-Max-Preview) is the latest-generation foundation model in the Qwen family, packing 2.4T parameters and still evolving. Compared with the previous flagship Qwen 3.7 Max, it delivers major gains in core capabilities like Coding and Cowork (professional productivity), with world-leading performance on complex, long-horizon tasks such as full-stack development, data analysis, and Office workflows. Launch offer: Credits are consumed at just 20% of the standard rate, effectively 5× your usage. Limited time only.

Input$0.34 /M
Output$1.01 /M
Details
StepFun logo
Step 3.7 Flash
StepFun · text, image → text

step-3.7-flash is stepfun's flagship inference model, designed for high-complexity tasks that require deep reasoning and fast execution. It excels at decomposing multi-step problems, performing tool calls, and maintaining consistency across massive datasets. It is the preferred choice for complex workloads such as long-context agents, advanced software engineering, and end-to-end research automation.

Input$0.22 /M
Output$1.32 /M
Details

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Qwen3.8 Max Preview
Step 3.7 Flash
Input /M
$0.34
$0.22
Output /M
$1.01
$1.32
Cache read /M
$0.03
$0.04
Context length
983,616
256,000
Max output
131,072
0
Time to First Token
2.4 s
-
Throughput
48.1 tok/s
-
Modalities
textimage
textimage
Supported Parameters
toolsfunction callingstructured outputsweblong contextthinking
API Formats
Released
-
-

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

qwen3.8-max-previewstep-3.7-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

qwen3.8-max-previewstep-3.7-flash

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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Cost calculator

Estimate your monthly bill for the same workload on each model.

Step 3.7 Flash
$33.00 /mo
Qwen3.8 Max Preview
$35.49 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Qwen3.8 Max Preview, Step 3.7 Flash?

Qwen3.8 Max Preview: $1.01/M output tokens; Step 3.7 Flash: $1.32/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

Qwen3.8 Max Preview accepts 983,616 and Step 3.7 Flash accepts 256,000 input tokens.

What inputs and capabilities does each model support?

Qwen3.8 Max Preview accepts text and image input and supports tool calling, function calling, structured outputs, web search, long context and thinking; Step 3.7 Flash accepts text and image input.

Can I call Qwen3.8 Max Preview and Step 3.7 Flash with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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