Alibaba Cloud vs StepFun

Two Chinese multimodal model makers. Alibaba offers a hosted 1M-context Qwen Max inside a full cloud with EU regions; StepFun offers cheap Apache 2.0 Step 3.7 Flash with China-hosted inference.

By The Subconscious Team · Updated October 29, 2026

Alibaba Cloud vs StepFun: key differences

Alibaba Cloud and StepFun both build multimodal models that read images and video, and both release open weights for some models. Alibaba's hosted flagship Qwen 3.8-Max comes with 1M context, function calling and web search at $2 in and $6 out internationally. StepFun's Step 3.7 Flash is open under Apache 2.0, a 198B mixture-of-experts model with 11B active parameters and 256K context at $0.20 in and $1.15 out on StepFun's API. On price per token and self-hosting cost, StepFun is far ahead.

Capability and distribution favor Alibaba. StepFun trails frontier models on hard multimodal reasoning benchmarks, has thin Western distribution and support, and runs first-party inference in China, though OpenRouter carries its model. Alibaba offers regional deployment scopes including the EU and a full public cloud, with open Qwen models for self-hosting as well. StepFun also builds speech and audio models. Cost-sensitive vision and video agents, and teams that want a cheap model to self-host, fit StepFun. Enterprises needing longer context, regional control and a stronger flagship fit Alibaba.

What Alibaba Cloud and StepFun do

Alibaba Cloud

Alibaba Cloud serves the Qwen model family through Model Studio, its managed AI platform. The flagship Qwen 3.8-Max takes text, image and video input with a 1M token context, function calling, structured outputs and built-in web search. International pricing is $2 in and $6 out per million tokens, with implicit cache hits at $0.25. Deployments in China and some global regions list lower, at $1.65 in and about $4.95 out, and Alibaba often runs limited-time discounts, including night-time cuts of up to 80% on Qwen 3.7-Max.

Example models: Qwen 3.8-Max, Qwen 3.7-Max

Full Alibaba Cloud profile

StepFun

StepFun is a Shanghai AI lab known for efficient multimodal models, with a mix of proprietary API models and open-weight releases. In September 2026 it launched Step 5 Preview, its new flagship for agentic work: a 600B-total, 27B-active mixture-of-experts model with 1M context and text and image input, which Artificial Analysis scores level with Kimi K3. It costs $1.00 in and $2.70 out per million tokens, and its weights followed on Hugging Face in mid-October under the custom StepFun Model License 1.0, which allows commercial use with restrictions. Its cheaper workhorse, Step 3.7 Flash, came out in May 2026 as a 198B mixture-of-experts vision-language model with only 11B active parameters. It has 256K context, selectable reasoning levels, tool use and structured outputs, and it ships under Apache 2.0. StepFun's own API prices it at $0.20 in and $1.15 out per million tokens, and OpenRouter carries it too.

Example models: Step 5 Preview, Step 3.7 Flash

Full StepFun profile

Should you choose Alibaba Cloud or StepFun?

Alibaba Cloud

Choose Alibaba Cloud for

Longer context up to 1M tokens
EU and other regional deployment
A stronger hosted multimodal flagship

StepFun

Choose StepFun for

Low-cost vision and video understanding
Self-hosting an Apache 2.0 model cheaply
Agents with selectable reasoning levels on a budget

Alibaba Cloud vs StepFun at a glance

Attribute	Alibaba Cloud	StepFun
Model access	Open weights incl. Max (custom license)	Open weights (Apache 2.0 or StepFun license) and API models
Flagship models	Qwen 3.8-Max, Qwen 3.7-Max	Step 5 Preview, Step 3.7 Flash
Speed	~40 tok/s on Qwen 3.8-Max	~128 tok/s on Step 3.7 Flash
Price	$2 in, $6 out international	$0.20 in, $1.15 out (Step 3.7 Flash)
Customization	No fine-tuning on hosted Max	Open weights to fine-tune
Deployment	Model Studio on Alibaba Cloud	First-party API, OpenRouter
Long context	1M (Qwen 3.8-Max)	Up to 1M (Step 5 Preview); 256K on Step 3.7 Flash

Frequently asked questions

What is the difference between Alibaba Cloud and StepFun?

Two Chinese multimodal model makers. Alibaba offers a hosted 1M-context Qwen Max inside a full cloud with EU regions; StepFun offers cheap Apache 2.0 Step 3.7 Flash with China-hosted inference.

When should I choose Alibaba Cloud over StepFun?

Longer context up to 1M tokens; EU and other regional deployment; A stronger hosted multimodal flagship.

When should I choose StepFun over Alibaba Cloud?

Low-cost vision and video understanding; Self-hosting an Apache 2.0 model cheaply; Agents with selectable reasoning levels on a budget.

Is Alibaba Cloud or StepFun cheaper?

Alibaba Cloud: $2 in, $6 out international. StepFun: $0.20 in, $1.15 out (Step 3.7 Flash). The cheaper choice depends on the model and workload.

Which has more context, Alibaba Cloud or StepFun?

Alibaba Cloud: 1M (Qwen 3.8-Max). StepFun: Up to 1M (Step 5 Preview); 256K on Step 3.7 Flash.

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