— named one of yc demo day's standout startups —

— named one of yc demo day's standout startups —

Backed by

Prove every change works
before shipping

Every change comes with verification screenshots, a recording and a full QA report before engineering merges.

The Pay button stays disabled after removing a promo code.

Opus 5
QA

Test the edge cases,
not the setup.

Agents verify their own work in a sandbox before review, so QA starts from evidence instead of a local build.

Verification panel with screenshots of a checkout page before and after a promo code fix Verification panel with screenshots of a checkout page before and after a promo code fix

Check every changed screen in verification screenshots

Agents capture screenshots of each changed screen in their sandbox, so you see the result before you open the preview.

Screen recording player paused on a checkout page, with a QA user scrubbing the timeline Screen recording player paused on a checkout page, with a QA user scrubbing the timeline

Watch a recording of the change in action

Every task includes a video recording of the change running, so you replay the flow instead of reproducing it by hand.

QA report listing checkout edge cases, each marked as passed QA report listing checkout edge cases, each marked as passed

Get a full QA report before review

Each change comes with a QA report of what was tested and what passed. Engineers read it alongside CI before they merge.

Now everyone on your team can ship.

Describe the change in plain English. LightSprint builds it, spins up a live preview, and prepares for engineering review.

sandbox-70hm
sandbox-71ab
Designer
Marketer

Works with tools you trust

Built for the workflow you already have.

LightSprint plugs into the tools your team already uses, from tickets and chat to complex codebases across multiple repos.

Works with your stack

Start a task from Linear, Jira or Slack, and ship it as a PR to GitHub, GitLab or Bitbucket. No migration, no new process, just changes that fit the way your team already works.

Any model, bring your own subscription

Bring your own API keys or existing Codex and Claude subscriptions, or pick any model through OpenRouter. No lock-in, no markup on inference.

The software factory trusted by teams

We've been able to now accelerate product development dramatically by allowing PMs and designers to ship. Love the collaborative process on LightSprint!

Lucas Lee, Head of Product, Arc

Lucas Lee

Head of Product, Arc

We run dev and BD workflows on LightSprint - shared agent sessions and per-task previews eliminated the handoff friction between teams. Founding team is super responsive too.

Jason Chin, Managing Director, TransactCloud

Jason Chin

Managing Director, TransactCloud

Managing agents with LightSprint is a game-changer as we can share the same agent sessions and steer together. Feels like Google docs for agents.

Alberto Rosas, CEO, Didit

Alberto Rosas

CEO, Didit

We send tickets from Linear and Slack directly into LightSprint, and its agents use our team’s shared skills and context to help build features, triage bugs, and work through the engineering backlog much faster.

Bladen Lam, CTO, Fuzzy

Bladen Lam

CTO, Fuzzy

First day live: 4 pull requests with real features from our Product Lead. This is the future of software engineering. Takes a day to set up, once set up anyone can create a task which gives them their own environment with Lovable style chat.

Tony Ennis, CEO, Giga

Tony Ennis

CEO, Giga

What impressed me is the way LightSprint helps with the planning process - designers, pms and devs can come up with a really good spec before giving it to an agent to one-shot.

Justin Chong, Head of Product, Chirp

Justin Chong

Head of Product, Chirp

LightSprint's plan mode allows me as a non-technical builder come up with different design variations for stronger alignment with my team.

Jarren Koh, Product Manager, Carousell

Jarren Koh

Product Manager, Carousell

Coding agents run solo in one developer's IDE while the rest of the team falls out of sync. LightSprint is rebuilding the SDLC for the AI era.

Zhilin Wang, CTO, Metix AI

Zhilin Wang

CTO, Metix AI

Frequently asked questions

How is LightSprint different from Claude, Codex, or Cursor?

Claude, Codex, and Cursor are coding agents. LightSprint is the workspace that lets your entire product team use them together.

Instead of agent sessions living with one developer, LightSprint gives your team shared context, shared skills, cloud sandboxes, live previews, automated verification, and an approval workflow before anything ships.

You can keep using the models and coding tools you already like — LightSprint adds the collaboration and guardrails that turn them into a software factory for your whole team.

Is LightSprint more expensive than using AI models directly? Can I use my existing subscription?

LightSprint doesn't mark up model inference.

Bring your own API keys or use existing Codex and Claude subscriptions, or choose another model through OpenRouter. You're paying LightSprint for the infrastructure around the models: cloud execution, shared context, previews, collaboration, testing, and team controls.

How secure is LightSprint? What happens to our code and data?

Your team controls which repositories and models LightSprint can access.

Work runs in isolated cloud sandboxes, and those environments are destroyed after the work is complete. You choose the model provider, and LightSprint can also work with your own LLM gateway.

Every code change remains auditable through your existing GitHub workflow, and nothing can bypass the approval rules your engineering team configures.

What tools does LightSprint support? Will it fit into our existing workflow?

LightSprint is built to work with the stack you already have rather than replace it.

Connect your existing codebase and repositories, keep your GitHub review and CI workflows, and use agents like Claude and Codex. Your team can also send work into LightSprint from tools such as Slack and Linear.

Engineering sets up the environment, shared skills, and guardrails once, then the rest of the team can build within those constraints.

I'm not an engineer. Can I actually use LightSprint safely?

Yes — that's one of the main reasons LightSprint exists.

You describe what you want in plain English, plan the change visually, launch an agent, and review the result in a live sandbox without needing to understand Git or set up a development environment.

Non-engineers don't get a shortcut around engineering. Every change follows the approval workflow your team configures, so engineers still control what reaches production.