# Amazon Bedrock vs Inception

> Amazon Bedrock is a managed catalog of 100+ models inside AWS. Inception makes fast diffusion LLMs, and Mercury is also sold through Bedrock.

Canonical: https://www.subconscious.dev/compare/aws-bedrock-vs-inception · By The Subconscious Team · Updated October 11, 2026

## How they compare

Bedrock reaches Claude, GPT-6 Astra, Nova, DeepSeek and more through one API, with IAM, PrivateLink, KMS and CloudTrail on every call, plus Guardrails, Knowledge Bases, fine-tuning and the AgentCore agent runtime. Third-party analyses put most models 20 to 35% above direct prices. Inception's Mercury 2.5 is a closed reasoning model with 260K context, tool use and JSON mode at $0.20 in and $0.75 out per million. Inception reports over 1,100 tokens per second, and Artificial Analysis measured about 640.

This is less either-or than it looks. Teams already on AWS can call Mercury through Bedrock and keep their security posture, with Claude for harder steps. Inception's own API carries its full lineup, including Mercury Voice and Mercury Router, plus fine-tuning and private deployments on request. Pick Bedrock for breadth and governance, and Inception direct for its full lineup.

## 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 up to Fable 5.1, Meta, Mistral, DeepSeek, Amazon's own Nova models, and, since a June 2026 launch under an expanded partnership, OpenAI models including the full GPT-6 family from Astra to Luna. 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.

### Inception

Inception builds diffusion large language models (dLLMs). Every other LLM on this list generates text one token at a time; Inception's Mercury models start from a rough draft of a whole block and refine it over a few passes, producing many tokens in parallel. That ties speed less to output length and lets the models run fast on ordinary NVIDIA GPUs rather than custom chips. The company was founded by professors from Stanford, UCLA and Cornell behind core work on diffusion, Flash Attention and DPO, and is led by Stanford's Stefano Ermon. It raised a $50M seed in November 2025 led by Menlo Ventures, with Mayfield, M12, NVentures, Snowflake and Databricks, plus Andrew Ng and Andrej Karpathy as angels.

## Which is best, and when

### Choose Amazon Bedrock for

- Regulated teams already on AWS
- Many model families under one IAM policy
- Governed agents with AgentCore

### Choose Inception for

- Fast, cheap reasoning for latency-bound steps
- Voice agents with Mercury Voice
- Fine-tuned or private Mercury deployments

## At a glance

| Attribute | Amazon Bedrock | Inception |
|---|---|---|
| Model access | Closed and open, 100+ models | Closed weights (Mercury dLLMs) |
| Flagship models | Claude, GPT-6 Astra, Nova, DeepSeek | Mercury 2.5, Mercury 2 |
| Speed | Latency-optimized option on some models | 1,100+ tok/s (vendor); ~640 measured |
| Price | ~20–35% above direct; Claude and GPT at parity | $0.20 in, $0.75 out (Mercury 2.5) |
| Customization | Fine-tuning, Custom Model Import | Fine-tuning on request |
| Deployment | Managed on AWS, AgentCore | Serverless API, Bedrock, Azure, private |
| Long context | Varies by model | 260K |

## FAQ

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

Amazon Bedrock is a managed catalog of 100+ models inside AWS. Inception makes fast diffusion LLMs, and Mercury is also sold through Bedrock.

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

Regulated teams already on AWS; Many model families under one IAM policy; Governed agents with AgentCore.

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

Fast, cheap reasoning for latency-bound steps; Voice agents with Mercury Voice; Fine-tuned or private Mercury deployments.

### Is Amazon Bedrock or Inception cheaper?

Amazon Bedrock: ~20–35% above direct; Claude and GPT at parity. Inception: $0.20 in, $0.75 out (Mercury 2.5). The cheaper choice depends on the model and workload.

### Which has more context, Amazon Bedrock or Inception?

Amazon Bedrock: Varies by model. Inception: 260K.

## 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 Inception](https://www.subconscious.dev/compare/subconscious-vs-inception.md).

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