# Amazon Bedrock vs Moonshot AI

> Moonshot AI serves Kimi K3, the most capable open-weight model, at $3 in and $15 out. Bedrock offers a governed catalog of 100+ models on AWS. Frontier open coding versus enterprise breadth.

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

## How they compare

Moonshot AI is a Beijing lab with one standout model. Kimi K3 is a 2.8 trillion parameter mixture-of-experts model with native vision and 1M context. Vals AI scored it 93.4% on SWE-bench Verified with a neutral harness, fourth overall behind Claude Opus 5, GPT-5.6 Sol and Claude Fable 5. The API costs $3 in and $15 out, with cached input at $0.30. Bedrock is a broad model service on AWS, and it carries Claude and GPT-6 Astra, the closed models K3 is measured against.

For long-horizon coding on huge repositories at a lower price than closed frontier models, K3 is compelling. Its catches are speed, around 33 tokens per second, always-on thinking, capacity shortfalls that paused new subscriptions after launch, and a custom license. Bedrock wins on governance and managed tooling like AgentCore and Guardrails, and it provides closed models that still top K3 on that benchmark. Teams could evaluate K3 for cost-sensitive coding steps while keeping regulated traffic on Bedrock.

## 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.

### Moonshot AI

Moonshot AI is the Beijing lab behind the Kimi models. Its flagship Kimi K3 launched July 16, 2026 as a 2.8 trillion parameter mixture-of-experts model that activates 16 of 896 experts per token, with native vision and a 1M token context. It is the first open model in the 3T class, and full weights landed on Hugging Face on July 27. The hosted API costs $3 in and $15 out per million tokens, with cached input at $0.30, and it runs through an OpenAI-compatible endpoint, Kimi Code in the terminal, OpenRouter and Cloudflare Workers AI.

## Which is best, and when

### Choose Amazon Bedrock for

- Claude and GPT for top coding scores under AWS controls.
- Enterprise procurement through an existing AWS account.
- Managed agents with Guardrails and memory.

### Choose Moonshot AI for

- Near-frontier open-model coding at lower prices.
- 1M-context document and visual agents.
- Teams that want open weights to fine-tune.

## At a glance

| Attribute | Amazon Bedrock | Moonshot AI |
|---|---|---|
| Model access | Closed and open, 100+ models | Open weights, custom license |
| Flagship models | Claude, GPT-6 Astra, Nova, DeepSeek | Kimi K3, Kimi K2.6 |
| Speed | Latency-optimized option on some models | ~33 tok/s on Kimi K3 |
| Price | ~20–35% above direct; Claude at parity | $3 in, $15 out (Kimi K3) |
| Customization | Fine-tuning, Custom Model Import | Open weights to fine-tune |
| Deployment | Managed on AWS, AgentCore | API, Kimi Code, OpenRouter |
| Long context | Varies by model | 1M |

## FAQ

### What is the difference between Amazon Bedrock and Moonshot AI?

Moonshot AI serves Kimi K3, the most capable open-weight model, at $3 in and $15 out. Bedrock offers a governed catalog of 100+ models on AWS. Frontier open coding versus enterprise breadth.

### When should I choose Amazon Bedrock over Moonshot AI?

Claude and GPT for top coding scores under AWS controls; Enterprise procurement through an existing AWS account; Managed agents with Guardrails and memory.

### When should I choose Moonshot AI over Amazon Bedrock?

Near-frontier open-model coding at lower prices; 1M-context document and visual agents; Teams that want open weights to fine-tune.

### Is Amazon Bedrock or Moonshot AI cheaper?

Amazon Bedrock: ~20–35% above direct; Claude at parity. Moonshot AI: $3 in, $15 out (Kimi K3). The cheaper choice depends on the model and workload.

### Which has more context, Amazon Bedrock or Moonshot AI?

Amazon Bedrock: Varies by model. Moonshot AI: 1M.

## 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 Moonshot AI](https://www.subconscious.dev/compare/subconscious-vs-moonshot-ai.md).

Full profiles: [Amazon Bedrock](https://www.subconscious.dev/providers/aws-bedrock.md), [Moonshot AI](https://www.subconscious.dev/providers/moonshot-ai.md).