When Lovable gets stuck on 'Thinking...' it means the AI generation process has stalled without producing output. This is usually caused by server overload, an overly complex prompt, or a browser session issue. Refresh the page, simplify your prompt into smaller tasks, and check Lovable's status page. If the problem persists, duplicate your project and start fresh.
What does "Code generation stuck on Thinking..." mean in Lovable?
When Lovable shows "Thinking..." for an extended period (more than 60 seconds) without producing any code output, the AI generation process has stalled. Normally, Lovable begins streaming code changes within 10-30 seconds of receiving a prompt. When it gets stuck, the spinner continues indefinitely but no code appears.
This is one of Lovable's most commonly reported issues, closely related to the broader pattern of AI builder reliability problems. The stall can occur at different stages: during initial prompt analysis, while the AI model processes your request, or during the code generation phase itself. Because Lovable uses a browser-based editor, browser session issues can also contribute.
The frustrating aspect is that stuck generations can consume credits even when they produce no output. Lovable has addressed this partially — "Ask the AI to fix" messages no longer count toward usage limits — but a stuck generation that eventually times out may still be counted. Users frequently report this issue during peak usage times and after Lovable infrastructure incidents.
Common causes
Lovable's servers are experiencing high demand or
an active incident, causing AI generation to queue or stall
The prompt is too complex or
ambiguous, causing the AI model to struggle with planning the response
The browser session has become stale due
to a long idle period, breaking the WebSocket connection to Lovable's backend
The current project state has
accumulated errors or conflicting code that makes the AI unable to determine a clean path forward
A browser extension (ad blocker, privacy tool) is
interfering with the streaming connection to Lovable's AI service
The project has too many files or
dependencies, exceeding Lovable's processing capacity for a single generation
How to fix "Code generation stuck on Thinking..." in Lovable
Start with the simplest fix: refresh the browser page (Cmd+R or Ctrl+R). This reestablishes the WebSocket connection to Lovable's backend. If the generation was queued on the server, it may resume after refresh. If it was truly stuck, refreshing lets you start a new attempt.
If refreshing does not help, check Lovable's status page for active incidents. Lovable had 30+ incidents between December 2025 and March 2026, so outages are not uncommon. During an outage, no amount of retrying will help — wait for the incident to resolve.
Next, simplify your prompt. Break complex requests into smaller, focused tasks. Instead of "Build me a full dashboard with authentication, data visualization, and real-time updates," start with "Create a basic dashboard layout with a sidebar and header." Then add features one at a time. This reduces the AI's processing load and produces more reliable results.
If the issue recurs on the same project, the project state may be corrupted. Duplicate the project (Settings > Duplicate), which creates a clean copy. Work from the duplicate. If the problem only affects one project, the original's state was likely the cause.
For persistent issues, try opening Lovable in an incognito window to rule out browser extension interference, and clear your browser cache for lovable.dev.
Prevention tips
- Break complex prompts into smaller, focused tasks — ask for one feature at a time instead of describing an entire application in a single prompt
- Refresh the browser page if Lovable shows Thinking for more than 60 seconds to reestablish the connection and retry the generation
- Duplicate your project before making major changes so you have a clean fallback if the AI gets stuck in a broken state
- Check Lovable's status page before troubleshooting further — outages are frequent and no amount of prompt changes will help during downtime
Still stuck?
Copy one of these prompts to get a personalized, step-by-step explanation.
Lovable is stuck on 'Thinking...' and not generating any code. I've been waiting for 5 minutes. My prompt asks it to build a user dashboard with authentication. What should I try to get it working?
My Lovable project is stuck on Thinking and won't generate code. I've tried refreshing the page. My project has about 30 files and I'm asking it to add a new feature. Help me break my prompt into smaller steps that Lovable can handle.
Frequently asked questions
Why is Lovable stuck on "Thinking..." and not generating code?
The most common reasons are server overload during peak hours, an overly complex prompt, or a stale browser session. Try refreshing the page first. If that does not work, check Lovable's status page for outages, then simplify your prompt into smaller tasks.
Does Lovable charge credits when stuck on Thinking?
It depends. If the generation eventually times out or fails, it may still consume a credit. Lovable has changed its policy so that 'Ask the AI to fix' messages no longer count toward usage. However, initial stuck generations may still be counted. Check your credit usage in account settings.
How long should I wait before refreshing when Lovable is Thinking?
Normal generation starts streaming within 10-30 seconds. If you see no output after 60 seconds, refresh the page. Waiting longer than 2 minutes is rarely productive — the generation has likely stalled and needs to be restarted.
Can a complex project cause Lovable to get stuck on Thinking?
Yes. Projects with many files, complex dependencies, or accumulated errors can overwhelm the AI's ability to plan changes. If your project consistently gets stuck, duplicate it and try working with a simplified version. Break large changes into smaller incremental prompts.
Should I duplicate my project if Lovable keeps getting stuck?
Yes, duplicating is one of Lovable's recommended solutions for persistent issues. Go to Settings and duplicate the project. This creates a clean copy that may resolve state corruption issues. It is also a good backup strategy before attempting major changes.
Can RapidDev help if my Lovable project keeps getting stuck during code generation?
Yes. RapidDev can analyze your project's architecture, identify what is causing the AI to stall, and help restructure prompts and code for more reliable generation. For complex applications that have outgrown Lovable's capabilities, RapidDev can also help migrate to a custom development workflow.
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