Compare models side-by-side
Do not settle for one answer. See how GPT, Gemini, DeepSeek, Claude, and others handle the same text.
Skin
Compare models. Own the workflow.
Stop renting AI. Control it.
Compare outputs from multiple AI models. Build repeatable text workflows. Connect your own OpenRouter API key for access to 50+ models - your text, your models, your rules.
No credit card. No signup. Paste text and see results.
OpenRouter gives this demo access to many AI models through one gateway. In the full app, you connect your own key and choose the models you want.
Send your first demo message
Choose a model, paste up to 100 words, and the answer will appear here as a chat card.
Bring your own API key
Connect OpenRouter, choose the model, and pay only for the tokens you actually use.
Text workflows, not one-off prompts
Chain translate -> rewrite -> grammar -> review into reusable pipelines.
You bring the key, you pay for tokens. AiTxtLab adds the editor, comparison, workflows, and adviser for a small fixed platform fee - no per-seat pricing.
AI gives you text. But who decides what is actually good?
Most AI writing tools work the same way: paste text, get one answer, and hope it is good enough. If the translation sounds wrong, you open another tool. If the rewrite changes the meaning, you try again. If the tone is off, you tweak it manually.
The hard part is not generating text. It is knowing which output is best and having the control to refine it without jumping between a translator, a paraphraser, a grammar checker, and a chat window.
How AiTxtLab is different
Your current stack - and what is missing
Single-purpose tools are useful, but they rarely show the full picture. AiTxtLab turns text work into a controllable workspace.
Accurate, but single-model
Great for quick translation, but you cannot compare several models and pick the strongest result.
Useful, but meaning can drift
Rewriting tools help, but they often hide what changed and why it changed.
Correctness without control
They catch errors, but they are not built for multi-model rewrites, translation, or reusable pipelines.
One window, one answer
Powerful, but hard to compare outputs, track edits, or turn the process into a repeatable workflow.
Convenient, but disconnected
They sit beside your work, while the real text operation still happens elsewhere.
One editor for the whole operation
Translate, restyle, compare, review, and build workflows in the same chat-style workspace.
Comparison
Replace 4 tools with 1
Translation, rewriting, model comparison, workflows, and reviewer feedback in one editor.
| Capability | QuillBot | DeepL | Grammarly | AiTxtLab |
|---|---|---|---|---|
| Translation | Yes | Yes | No | Yes |
| Rewriting | Yes | Yes (Write Pro) | Yes | Yes |
| Model comparison | No | No | No | Yes |
| BYOK API key | No | No | No | Yes |
| Local models option | No | No | No | Yes |
| Text workflows | No | No | No | Yes |
| Advisor / reviewer | No | No | Limited | Yes |
How it works
From text to result - in four steps
Connect your OpenRouter key
OpenRouter gives you access to 50+ AI models through one account. Paste the key once and choose models inside AiTxtLab.
Choose one model - or several
Run a quick result, or send the same text to multiple models and compare outputs side-by-side.
Translate, rewrite, or improve
Pick translation, restyle, grammar, shortening, or marketing tone. Every change can be inspected.
Save repeatable workflows
Turn your process into a node pipeline: translate -> restyle -> grammar -> advisor review.
Product tour
See text workflows in action
The interactive demo above is instant. These short clips show deeper workflows inside the real product.
Restyle + compare
Rewrite creatively with multiple models and inspect every change
Run Creative restyle with different AI models, turn on Show changes, then use Compare mode to review both versions side by side before choosing the strongest result.
Comparison + adviser
Compare translations and ask the adviser which one wins
Use different AI models for the same translation, review outputs in comparison mode, then open the adviser to get a ranked recommendation with a clear explanation.
Key features
Control the full text operation
See every model's answer at once
Compare outputs in one workspace instead of guessing which AI wrote the best version.
Your key. Your models. Your cost.
Use OpenRouter to access many models through your own account. AiTxtLab stays focused on the editor and workflow layer.
One chain. Infinite reuse.
Build pipelines for translation, style, grammar, review, and formatting. Run them again on new text.
An expert opinion on your output
Ask the adviser which version is stronger and why: tone, clarity, accuracy, nuance, or SEO fit.
One editor. Every text operation.
Translate, rewrite, shorten, improve grammar, attach files, and keep history in the same flow.
Local models when you want them
Use LM Studio for local experiments, then switch to cloud models for polished results.
Workflow examples
Ready-made workflows for real jobs
BYOK explained
What is OpenRouter, and why use your own API key?
Think of OpenRouter like a universal remote for AI models. Instead of signing up for GPT, Gemini, Claude, DeepSeek, and others separately, you get one API key and one bill.
Need API knowledge? No. An API key is just a string of characters - like a password. AiTxtLab guides the setup and keeps the actual text workflow simple.
- Create an OpenRouter account and get a key.
- Paste it into AiTxtLab settings.
- Pick any model and process text.
FAQ
Questions before signup friction
Do I need an OpenRouter API key?
For full cloud model access, yes. The public demo works without an account, and local models can run through LM Studio.
Why not just use ChatGPT?
ChatGPT gives one model and one answer. AiTxtLab helps you compare models, chain operations, and get reviewer feedback.
Can I compare models?
Yes. Send the same text to multiple models, pin outputs side-by-side, and ask the adviser to explain the winner.
Is this for translators or marketers?
Both. Translators can compare nuance. Marketers can run tone, SEO, grammar, and review workflows.
Learn more
Learn more about AiTxtLab workflows
Explore practical use cases and simple explanations for how AiTxtLab turns text work into reusable AI workflows.
Ready when you are
Pay for what you use. Not for seats you do not have.
Try the public demo first. When you are ready to save history, connect providers, and build workflows, sign in with Google.