Kiro vs Replit
A feature-by-feature comparison of Kiro and Replit across 7 capability categories.
Modalities — Replit Wins
| Feature | Kiro | Replit |
|---|---|---|
Text Input | Yes, requires free plan. Prompts become specs (requirements, design, tasks) then implementation. | Yes, requires free plan. Replit Chat / Agent 4 turns a prompt into a published app. First prompt is documented as free. |
Image Upload / Vision | Partial. Homepage mentions multimodal inputs and Figma as context. A general image-upload vision API was not separately documented. | Unknown. Infinite Canvas is a visual design surface. Screenshot/vision upload was not confirmed. |
Image Generation | No. A coding agent, not an image model. | Unknown. Apps can call image APIs via integrations. A first-party image model was not confirmed. |
Voice Mode | No. No conversational voice loop is documented. | No. No conversational voice loop is documented. |
Video Understanding | No. Not a video-analysis product. | No. Not a video-analysis product. |
Video Generation | No. Not a video generation product. | No. Not a video generation product. |
File Upload (PDF, DOCX) | Yes, requires free plan. Works on local workspaces and, on the web, GitHub/GitLab repos in cloud sandboxes. | Yes, requires free plan. Workspaces hold project files. You can import and edit a full codebase in the browser. |
Code Execution | Yes, requires free plan. Agents implement, test, and can run headless in CI. Web sessions run in isolated sandboxes. | Yes, requires free plan. The IDE runs code, hosts apps, and can keep a background task running. Agent writes production-ready code. |
Audio Input | No. No audio-file input is documented. | No. No audio-file input is documented. |
Canvas / Artifact Editor | Unknown. Overlapping columns disagreed (partial vs yes); left unverified rather than copying a no. | Yes, requires free plan. Infinite Canvas is a visual design space that applies back onto the app. |
Screen Sharing / Computer Use | No. No computer-use desktop takeover is documented. Agents edit the workspace. | No. No computer-use desktop takeover. Collaboration is inside Replit. |
Memory & Context — Kiro Wins
| Feature | Kiro | Replit |
|---|---|---|
Persistent Memory | Yes, requires free plan. Steering files (.kiro/steering/, ~/.kiro/steering/, AGENTS.md) persist conventions across sessions and surfaces. | Partial. Workspaces persist. That is project state, not ChatGPT-style memory of you. |
Large Context Window | Unknown. Uses multiple FMs via Bedrock/Auto. No token window is published on the pricing page. | Unknown. Intelligent model routing is documented; no token window is published on pricing. |
Custom Instructions | Yes, requires free plan. Steering markdown (always / fileMatch / manual) plus AGENTS.md. | Unknown. Plan mode is on Core. A global instruction profile was not confirmed on the homepage. |
Conversation History | Yes, requires free plan. IDE, CLI, web, and Crew keep sessions. Web sandboxes keep running after you close the laptop. | Yes, requires free plan. Chat with the Agent persists in the workspace. |
Integrations — Tie
| Feature | Kiro | Replit |
|---|---|---|
Web Search / Browsing | Unknown. MCP can pull tools; a first-party live-web search toggle was not confirmed. | Unknown. A first-party live-web search toggle was not confirmed. |
Plugins / Extensions | Yes, requires free plan. MCP, Agent Client Protocol, Open VSX extensions, Skills.md, and 500+ CLI tools. | Yes, requires free plan. 100+ integrations (OpenAI, Stripe, Google Workspace, and more). |
API Access | Partial. Headless CLI in CI/CD and ACP into other IDEs. That is not a public REST generate API. | Unknown. You build apps with APIs. A public Replit generate API was not confirmed. |
Zapier Integration | Unknown. No first-party Zapier app was checked. | Unknown. No first-party Zapier app was checked. |
Custom GPTs / Bots | Yes, requires free plan. Custom agents plus steering; ACP into other tools. Kiro Crew is the open-source coordinator. | No. You publish apps, not a Custom GPT store. |
Real-time Collaboration | Partial. Team billing and shared steering. Live multiplayer cursors were not documented. | Yes, requires plus plan. Agent 4 multi-user collaboration and Pro collaborator/viewer seats are documented. |
Live Social Data Integration | No. Not a live social-firehose product. | No. Not a live social-firehose product. |
Live Citation Mapping | No. Not a cited-search product. | No. Not a cited-search product. |
Developer — Kiro Wins
| Feature | Kiro | Replit |
|---|---|---|
Function Calling | Yes, requires free plan. Agents take actions (implement, test, hooks, MCP tools), not chat-only replies. | Yes, requires free plan. Agent takes actions (write code, use services, publish) rather than chat-only replies. |
Streaming Responses | Unknown. Token streaming is not documented as an API contract. | Unknown. Token streaming is not documented as an API contract. |
Fine-Tuning | No. You pick models (Auto, Claude, GPT, open-weight). No custom-weight training product. | No. Intelligent model routing picks hosted models. No custom-weight training product. |
Embeddings API | No. Not an embeddings API. | No. Not an embeddings API. |
Structured Output (JSON) | Partial. Specs and property-based tests are structured artifacts. Not a JSON-schema chat API. | Partial. Agent 4 can flesh out requirements before a build. Not a JSON-schema chat API. |
Reasoning / Thinking Mode | Unknown. Overlapping columns disagreed (yes vs partial); left unverified rather than copying a no. | Unknown. Overlapping columns disagreed (yes vs partial); left unverified rather than copying a no. |
Local Execution | Yes, requires free plan. IDE and Crew run on your machine; web sandboxes are cloud. Models are hosted. | No. Code runs on Replit’s cloud, not as a local runtime you download. |
Open Weights | Partial. You can select open-weight models (Qwen, DeepSeek, MiniMax, GLM). The Kiro product itself is not an open-weight release except Crew. | No. Hosted models via routing. Replit is not an open-weight model release. |
Multi-Agent Orchestration | Yes, requires free plan. Parallel agents implement tasks; hooks fire on IDE events; Crew coordinates tools. | Yes, requires pro plan. Pro documents 10 parallel agents. Homepage also highlights parallel task execution. |
Platforms — Kiro Wins
| Feature | Kiro | Replit |
|---|---|---|
Web App | Yes, requires plus plan. Kiro on the web (preview) is for paid Pro+ tiers; sandboxes keep running in the cloud. | Yes, requires free plan. replit.com is the IDE, Agent, and hosting dashboard. |
iOS App | Yes, requires plus plan. Homepage: sign in on mobile with a paid account. Store listing OS split was not opened this round; Google/Apple both implied by “mobile app”. | Unknown. A current native iOS app was not confirmed on the homepage/pricing pages checked. |
Android App | Unknown. A mobile app is documented; Android vs iOS split was not confirmed on a store page. | Unknown. A current native Android app was not confirmed on the homepage/pricing pages checked. |
Desktop App | Yes, requires free plan. Downloadable IDE for the OS; Open VSX + VS Code settings import. | No. The documented product is the browser IDE, not a native desktop install. |
Chrome Extension | No. Not distributed as a Chrome extension. | No. No official Chrome extension is documented. |
Privacy — Tie
| Feature | Kiro | Replit |
|---|---|---|
GDPR Compliant | Unknown. Needs an AWS DPA read for Kiro specifically. | Unknown. Needs a current Replit DPA read. |
Opt Out of Data Training | Unknown. Enterprise privacy is advertised; a consumer training opt-out toggle was not checked. | Unknown. A training opt-out toggle was not checked. |
Enterprise Privacy Mode | Yes, requires enterprise plan. IAM, SSO, usage dashboards, IP indemnity, GovCloud, centralized billing. | Yes, requires enterprise plan. SSO/SAML, SOC 2, admin controls, single-tenant, static outbound IPs. |
Workspaces — Tie
| Feature | Kiro | Replit |
|---|---|---|
Projects / Folders | Yes, requires free plan. Workspace .kiro/specs and steering; Crew is a persistent local workspace. | Yes, requires free plan. Workspaces/projects. Core lists unlimited workspaces. |