# Alibaba Cloud vs Wafer

> Wafer reports running Qwen 3.5 397B 2.8x faster than stock SGLang and sells flat-rate access for coding agents. Alibaba Cloud serves Qwen from the source, including the closed Max tier.

Canonical: https://www.subconscious.dev/compare/alibaba-cloud-vs-wafer · By The Subconscious Team · Updated September 30, 2026

## How they compare

Wafer's showcase model is an open Qwen. It reports its tuned Qwen 3.5 397B running 2.8x faster than stock SGLang, a self-reported number against an untuned baseline. Its agents tune batching, decoding, quantization, kernels and hardware for each deployment, on NVIDIA or AMD, and Wafer Pass, from $10 a week, covers every hosted model inside Claude Code, Cline or OpenHands. Alibaba Cloud serves Qwen directly, including the closed Qwen 3.8-Max with 1M context and multimodal input at $2 in and $6 out internationally.

The two serve different needs. Wafer suits developers who want big open Qwen or GLM models at interactive speed on a flat budget, and teams with a strict latency SLO that want a dedicated deployment tuned for them. Alibaba suits anyone who needs the closed Max tier, video input, regional deployment including the EU, or a full cloud around the model. Wafer is a very young company with a small hosted catalog. Alibaba is large but has a confusing price sheet with rotating promotions.

## What each one does

### 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.

### Wafer

Wafer builds AI agents that act as GPU performance engineers, then sells inference on the stacks those agents tune. The company came out of Y Combinator's Summer 2025 batch as a "Cursor for CUDA" that turned slow PyTorch into custom kernels. Founders Emilio Andere and Steven Arellano are based in San Francisco. Its agents profile a workload, generate candidate configs across batching, decoding, quantization, engines, kernels and hardware, measure each one and deploy the winner.

## Which is best, and when

### Choose Alibaba Cloud for

- The closed Qwen 3.8-Max
- Video input and built-in web search
- Regional deployment in a full cloud

### Choose Wafer for

- Fast open Qwen models in coding harnesses
- Flat weekly pricing instead of per-token bills
- Dedicated deployments tuned to a latency SLO

## At a glance

| Attribute | Alibaba Cloud | Wafer |
|---|---|---|
| Model access | Closed Max; open smaller Qwen | Open weights |
| Flagship models | Qwen 3.8-Max, Qwen 3.7-Max | Qwen 3.5 397B Turbo, GLM 5.1 Turbo |
| Speed | ~40 tok/s on Qwen 3.8-Max | 2–2.8x vs stock vLLM or SGLang |
| Price | $2 in, $6 out international | Wafer Pass from $10 a week |
| Customization | No fine-tuning on Max | Agent-tuned dedicated deployments |
| Deployment | Model Studio on Alibaba Cloud | Serverless pass, dedicated |
| Long context | 1M (Qwen 3.8-Max) | Varies by model |

## FAQ

### What is the difference between Alibaba Cloud and Wafer?

Wafer reports running Qwen 3.5 397B 2.8x faster than stock SGLang and sells flat-rate access for coding agents. Alibaba Cloud serves Qwen from the source, including the closed Max tier.

### When should I choose Alibaba Cloud over Wafer?

The closed Qwen 3.8-Max; Video input and built-in web search; Regional deployment in a full cloud.

### When should I choose Wafer over Alibaba Cloud?

Fast open Qwen models in coding harnesses; Flat weekly pricing instead of per-token bills; Dedicated deployments tuned to a latency SLO.

### Is Alibaba Cloud or Wafer cheaper?

Alibaba Cloud: $2 in, $6 out international. Wafer: Wafer Pass from $10 a week. The cheaper choice depends on the model and workload.

### Which has more context, Alibaba Cloud or Wafer?

Alibaba Cloud: 1M (Qwen 3.8-Max). Wafer: Varies by model.

## Running long-horizon agents?

If your agents run past 200K tokens, compare both against Subconscious: [Subconscious vs Alibaba Cloud](https://www.subconscious.dev/compare/subconscious-vs-alibaba-cloud.md), [Subconscious vs Wafer](https://www.subconscious.dev/compare/subconscious-vs-wafer.md).

Full profiles: [Alibaba Cloud](https://www.subconscious.dev/providers/alibaba-cloud.md), [Wafer](https://www.subconscious.dev/providers/wafer.md).