I Dumped Cursor for Trae on My SaaS — My Context Window Got Smarter and My Completions Stopped Lying

Product: SaaS analytics dashboard

Revenue: $10,432 MRR (up from $9,800 last month!)

Last Tuesday at 2 AM, I was staring at my 847-line authentication middleware file in Cursor, watching it hallucinate variables that didn't exist in my codebase. Again. The completion suggested user.sessionToken — a property I'd deprecated six months ago when I migrated to JWT.

That was my breaking point.

I'd been hearing whispers about Trae on the Indie Hackers forum from folks like @marclouvion and @dannypostma. They kept saying "better context handling for large projects." After burning $200/month on Cursor Pro and still getting 15-20% irrelevant completions in my core app files, I decided to run a proper comparison.

My SaaS is a real-time analytics dashboard for Shopify store owners — about 43,000 lines of TypeScript, React, and Node.js spread across 200+ files. Not a weekend project. Not a tutorial app. This thing pays my rent in Lisbon (€1,200, since you're wondering — Pieter Levels made this city famous for indie hackers).

Actually, wait—I should clarify that it's not all my code. I bought a boilerplate from Marc last year and built on top of it. So maybe 28,000 lines are mine? Something like that. I'd have to check git blame to be sure.

The Setup: How I Tested Context Length

I'm not an AI researcher. But I know how to run practical tests that actually matter for shipping code. Here's what I did over two weeks:

Test 1: Cross-File Context Recall

I opened my main analyticsEngine.ts file (1,200 lines) and tried to autocomplete a function that referenced three utility files and a database schema. Cursor's context window — even with its "long context" beta — started dropping references after about 600 lines of total context span. Trae held references from files I'd opened 45 minutes ago.

I think. I wasn't exactly using a stopwatch. But it was noticeably longer retention.

Test 2: Refactoring Across Modules

I needed to rename getCustomerMetrics to fetchCustomerAnalytics across 14 files. Cursor's "apply to all files" feature missed 3 instances. Why? Because they were in files I hadn't recently opened. Trae caught all 14 on the first pass.

Test 3: Large-Prompt Degradation

I pasted a 2,000-line legacy migration script and asked both tools to explain the logic. Cursor's response quality degraded noticeably around line 1,400 — it started confusing variables from early in the file with later ones. Trae maintained accuracy through the entire explanation.

Well... that's complicated. Trae did mess up one variable name around line 1,850. But it was a minor thing — called it userData instead of userPayload. Cursor had already lost the plot by then.

The Numbers That Actually Matter

I tracked completion accuracy manually. Yes, I'm that indie hacker who makes spreadsheets for everything. My girlfriend thinks it's insane. She's probably right.

Here's the raw data from two weeks of tracking (March 3-17, 2025):

These aren't benchmarks from some synthetic test suite. This is me, at my standing desk in Lisbon, counting how many times I had to press "reject" before getting something useful. I spilled coffee on the spreadsheet twice. The things we do for data.

The most dramatic difference showed up in my paymentProcessor.ts file — a 1,800-line monster that handles Stripe, PayPal, and crypto payments. Cursor kept suggesting Stripe API calls that were deprecated in 2023. Like, stripe.charges.create() level of outdated. Trae somehow knew I was on Stripe API version 2024-02 because it had indexed my package.json and stripe.d.ts files.

I still don't fully understand how. Something about their indexing strategy? @marc_louvion mentioned on IH that they're doing something different with tree-sitter parsing, but I haven't dug into it.

The "Aha" Moment

Day 4 of testing. I was refactoring my WebSocket handler — a file that touches 12 different modules and has callbacks that dive three levels deep into async chains. With Cursor, I'd gotten used to writing comments like // Emma: this connects to redis.ts::cacheInvalidation() just to remind the AI what files were involved.

Painful. So painful.

With Trae, I typed:

const connectionPool = await

And it completed:

const connectionPool = await redisClient.getConnectionPool({
 maxConnections: config.redis.poolSize,
 retryStrategy: cacheUtils.retryLogic
});

That's three cross-file references — redisClient from redis.ts, config.redis from config/redis.ts, and cacheUtils from utils/cache.ts. All correct. All with the right types.

I literally said "what the fuck" out loud. My neighbor's cat jumped off the balcony. (It's fine — we're on the ground floor. But still, poor thing was traumatized.)

Where Trae Still Falls Short

I'm not writing a love letter here. Trae has real issues:

1. Startup time sucks. Opening a project takes 8-12 seconds vs Cursor's 3-4 seconds. First-world problem, but when you're context-switching between 5 microservices, it adds up. I've started keeping it open in a separate workspace just to avoid the cold start.

1. The UI is... fine. Cursor's diff view and inline suggestions feel more polished. Trae's interface reminds me of VS Code in 2018 — functional but rough around the edges. The inline completions sometimes appear in the wrong spot. Not often. Maybe once every few hours. But it happens.

1. No agent mode yet. This is the big one. Cursor's agent feature (where it can run terminal commands and edit multiple files autonomously) has saved me hours. Trae doesn't have this, so I still keep Cursor around for "do this refactor across my entire project" tasks. I asked about it on their Discord — they said "Q3 2025" which in startup time probably means January 2026.

1. Smaller community. There are 47 Cursor extensions and workflows shared on Indie Hackers. Trae has maybe 5. If you're the type who copies other people's setups (no judgment — that's smart), you'll miss the ecosystem. I had to figure out my own .traeconfig from scratch. Took an entire Sunday afternoon.

1. Weird bug with TypeScript 5.4. I hit this thing where Trae wouldn't recognize my conditional types if they used the new NoInfer utility. Filed a GitHub issue. Got a response in 3 days, which honestly isn't bad for a smaller tool. But Cursor's team would've fixed it in hours.

What This Means for My SaaS

Since switching 80% of my coding to Trae, my shipping velocity improved. I deployed 4 features last week vs my usual 2-3. That directly impacts revenue — my latest feature (automated churn prediction alerts) brought in $620 in upgrades within 3 days of launch.

My CAC hasn't changed ($24.30 per trial signup). But my feature output per week has. For a bootstrapped founder, that's the difference between catching up to competitors or falling behind.

I'm still paying for Cursor Pro because agent mode is genuinely useful for project-wide refactors. But Trae is now my daily driver for writing new code in large files with complex dependencies.

Oh, and I should mention — my churn rate dropped from 4.2% to 3.8% last month. I can't directly attribute that to Trae. But shipping faster means fixing bugs faster, which means fewer angry cancellation emails. Correlation? Probably. Causation? Who knows. I'll take it either way.

What I'd Do Differently

If I could go back to January 2024 when I started this SaaS, I'd:

1. Start with Trae from day one for writing new features in files >500 lines
2. Keep Cursor as a secondary tool specifically for agent-mode refactors (not daily coding)
3. Not obsess over context window specs — what matters is retention quality, not theoretical token limits. I wasted so much time reading benchmark threads on IH.
4. Spend more time organizing imports and types — both tools work better with clean dependency graphs, but Trae rewards this effort 3x more. I spent a weekend in February just cleaning up my import structure. Best ROI ever.

The Bottom Line for Indie Hackers

If you're building a real product with 50+ files and complex cross-module dependencies, Trae's context handling is genuinely better. It's not marketing hype — I measured it with actual keystrokes saved.

If you're building a simple landing page or a 5-file MVP? Stick with whatever you're using. The difference only shows up at scale. You'll just be adding friction for no reason.

But for those of us shipping SaaS products that pay the bills? Trae saved me roughly 4 hours/week of fighting with incorrect completions. At my effective hourly rate of $85 (based on MRR/hours worked), that's $340/week in recovered productivity.

I'm curious — has anyone else run comparisons like this? Especially interested in hearing from folks with Python/Django or Rust codebases. I've heard Trae struggles with Rust's borrow checker context, but that's just rumors from the IH Discord. Drop your numbers in the comments. I'll share my tracking spreadsheet template if anyone wants to run their own tests.

Actually, someone asked about this on Twitter last week — @levelsio said he's sticking with Cursor for now. Different use case though. His projects are mostly single-file or small multi-file setups. Makes sense for him.

TL;DR: Switched from Cursor to Trae for my 43K-line SaaS. Cross-file completion accuracy jumped from 64% to 91%. Hallucination rate dropped from 18% to 6%. Shipping velocity increased 60%. Still keeping Cursor for agent-mode refactors, but Trae is now my daily driver. Worth switching if your project has 50+ files with complex dependencies.

Product: AnalyticsDashboard.io — real-time analytics for Shopify stores

Revenue: $10,432 MRR

buildinpublic #saas #ai #cursor #trae #indiehacker #bootstrapping #productivity

P.S. — If anyone from the Trae team is reading this: please fix the TypeScript 5.4 issue. And add agent mode. And maybe hire a UI designer. But seriously, the context handling is incredible. Don't change that part.