# Amazon Bedrock vs StreamLake

> StreamLake is Kuaishou's AI cloud for the proprietary KAT-Coder models, with data resident in China. Bedrock offers 100+ models under AWS controls. A regional coding specialist versus a global control plane.

Canonical: https://www.subconscious.dev/compare/aws-bedrock-vs-streamlake · By The Subconscious Team · Updated September 30, 2026

## How they compare

StreamLake is the AI cloud brand of Kuaishou, the Chinese short-video company behind the Kling models. Its headline product is KAT-Coder-Pro V2.5, a proprietary agentic coding model that StreamLake says learned repository-level work through large-scale agentic RL. It sells per-token access or a KwaiKAT Coding Plan, with OpenAI-protocol endpoints and a Claude-protocol proxy for Claude Code. Bedrock is a multi-provider AWS service carrying Claude, GPT-6 Astra, Nova and open models under IAM and KMS. Earlier KAT-Coder versions also spread through resellers like 302.AI and OpenRouter.

For most US and EU enterprises, residency settles it: StreamLake's data sits in China, and its pricing and docs lead with yuan, which complicates procurement. That same profile suits Chinese internet businesses that want domestic MaaS and bare-metal capacity. For developers who want a low-cost subscription coding model, StreamLake's plan is a direct offer. Bedrock suits governed coding agents on Claude or GPT, with AgentCore providing sandboxed code tools and audit trails.

## What each one does

### Amazon Bedrock

Amazon Bedrock is AWS's managed model service and has become the default AI control plane for many enterprises. One API reaches 100+ models from 18+ providers, including Anthropic's Claude family, Meta, Mistral, DeepSeek, Amazon's own Nova models, and, since an April 2026 partnership expansion, OpenAI models up to GPT-6 Astra. Switching models is usually just a new model ID. Every call inherits IAM, PrivateLink, KMS encryption and CloudTrail logging, and provider models never train on customer data.

### StreamLake

StreamLake is the AI cloud brand of Kuaishou, the Chinese short-video company behind the Kling video models. It sells model-as-a-service inference and bare-metal compute to internet businesses, drawing on the infrastructure Kuaishou built to serve video at massive scale. Its developer site offers APIs, SDKs and integration guides aimed at taking teams from testing to production.

## Which is best, and when

### Choose Amazon Bedrock for

- Governed coding agents for US and EU enterprises.
- Claude and GPT with AWS audit trails.
- Sandboxed code tools inside AgentCore.

### Choose StreamLake for

- Low-cost agentic coding on a subscription.
- KAT-Coder inside Claude Code through a proxy.
- Chinese businesses needing domestic capacity.

## At a glance

| Attribute | Amazon Bedrock | StreamLake |
|---|---|---|
| Model access | Closed and open, 100+ models | Proprietary coding models |
| Flagship models | Claude, GPT-6 Astra, Nova, DeepSeek | KAT-Coder-Pro V2.5, KAT-Coder-Air |
| Speed | Latency-optimized option on some models | - |
| Price | ~20–35% above direct; Claude at parity | Per token or KwaiKAT Coding Plan |
| Customization | Fine-tuning, Custom Model Import | - |
| Deployment | Managed on AWS, AgentCore | MaaS API, bare metal |
| Long context | Varies by model | - |

## FAQ

### What is the difference between Amazon Bedrock and StreamLake?

StreamLake is Kuaishou's AI cloud for the proprietary KAT-Coder models, with data resident in China. Bedrock offers 100+ models under AWS controls. A regional coding specialist versus a global control plane.

### When should I choose Amazon Bedrock over StreamLake?

Governed coding agents for US and EU enterprises; Claude and GPT with AWS audit trails; Sandboxed code tools inside AgentCore.

### When should I choose StreamLake over Amazon Bedrock?

Low-cost agentic coding on a subscription; KAT-Coder inside Claude Code through a proxy; Chinese businesses needing domestic capacity.

### Is Amazon Bedrock or StreamLake cheaper?

Amazon Bedrock: ~20–35% above direct; Claude at parity. StreamLake: Per token or KwaiKAT Coding Plan. The cheaper choice depends on the model and workload.

## Running long-horizon agents?

If your agents run past 200K tokens, compare both against Subconscious: [Subconscious vs Amazon Bedrock](https://www.subconscious.dev/compare/subconscious-vs-aws-bedrock.md), [Subconscious vs StreamLake](https://www.subconscious.dev/compare/subconscious-vs-streamlake.md).

Full profiles: [Amazon Bedrock](https://www.subconscious.dev/providers/aws-bedrock.md), [StreamLake](https://www.subconscious.dev/providers/streamlake.md).