Comparison

Kiro vs Cursor

AWS Kiro vs Cursor in 2026, AWS/Bedrock's spec-driven IDE vs Anysphere's AI-first VS Code fork. Spec-driven development, agents, MCP, pricing, and which to pick.

Short answer

Kiro is AWS/Bedrock's new spec-driven IDE, write specs first, then let the agent build to spec. Cursor is the established AI-first VS Code fork, vibe-coding with chat + autocomplete + Composer. Pick Kiro for structured, spec-first workflows with AWS integration; pick Cursor for fast, exploratory development.

Kiro

AWS / Amazon Bedrock

Spec-driven IDE from AWS, powered by Amazon Bedrock models

Best for: Teams that want spec-driven development with tight AWS integration.

Visit Kiro →

Cursor

Anysphere

AI-first fork of VS Code

Best for: Fast, exploratory vibe-coding with chat + autocomplete + Composer.

Visit Cursor →

Feature comparison

Philosophy

KiroSpec-driven, specs first, code second
CursorVibe-coding, chat + autocomplete

Editor

KiroVS Code fork
CursorVS Code fork

Default models

KiroAmazon Bedrock (Claude, Llama, Titan)
CursorEdgeClaude, GPT, Gemini (selectable)

Agent mode

KiroSpec-driven agent
CursorComposer + agent mode

MCP support

KiroVia Amazon Bedrock AgentCore
CursorEdgeNative

Skills

KiroVia MCP
CursorVia skills-hub --target cursor

AWS integration

KiroEdgeNative, IAM, Bedrock, CodeWhisperer
CursorVia MCP servers

Pricing

KiroPay via AWS Bedrock usage
CursorEdge$20/mo Pro flat

Pick Kiro when

  • →You want spec-driven development as a first-class workflow
  • →You're heavy on AWS / Bedrock infrastructure
  • →Your team values upfront specs over fast iteration
  • →You want Amazon Bedrock model access

Pick Cursor when

  • →You want fast, exploratory vibe-coding
  • →You want broad model choice (Claude, GPT, Gemini)
  • →You don't need AWS-specific integration
  • →You're already on Cursor and have a workflow that works

Verdict

Kiro is the right pick if you're already on AWS and want spec-driven development built into your IDE, write a spec, let the agent implement to spec, iterate. Cursor is the right pick for fast, exploratory work and broader model choice. Many teams pilot Kiro for new greenfield projects with clear specs and stay on Cursor for ongoing work.

Frequently asked questions

What is spec-driven development?

Write a clear specification (requirements, acceptance criteria, edge cases) first; the agent implements to that spec, runs tests against it, and iterates. Kiro builds this loop into the IDE.

Does Kiro require AWS?

Kiro uses Amazon Bedrock models, so an AWS account is required. Other Bedrock-hosted models (Claude via Bedrock, Llama, Titan) are available.

Can I use skills-hub skills in Kiro?

Yes via Amazon Bedrock AgentCore, which speaks MCP. Connect to `https://api.skills-hub.ai/mcp` and the 4,900+ skill catalog appears as MCP prompts.

Which is cheaper?

Depends on usage. Kiro pricing is AWS-pay-as-you-go (Bedrock token costs). Cursor is flat $20/mo Pro. For heavy use Cursor often wins; for light use Kiro can be cheaper.

Is Kiro open source?

Kiro is proprietary. The Bedrock AgentCore SDK is partially open source.

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