Langtail

Automation

★★★★★ No votes yet Reliability100%

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Langtail is a platform for testing, debugging and monitoring AI/LLM-powered prompts and applications. It offers a no-code playground to iterate on prompts, version and compare outputs, run automated evaluations, and log/monitor live API requests. Aimed at developers and product teams building AI features (including AI content or chatbot tools) rather than social platforms directly, it helps teams refine prompt quality and catch regressions before and after deployment.

Rock solid Lightning fast

Good to know

Pricing: Free plan + paid tiers (contact for pricing)
Platforms: Web
Best for: Developers & AI product teams

Pros

No-code prompt testing playground
Prompt versioning and comparison
Built-in automated evaluations
Live API request monitoring

Cons

Not social-media specific
Requires some technical setup
No native SMM integrations

Key features

Prompt playground
Prompt versioning
Automated evaluations
API request logging
LLM firewall/monitoring

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Frequently asked

What is Langtail?

Langtail is a platform for testing, debugging and monitoring AI/LLM-powered prompts and applications.

Is Langtail reliable?

Langtail responded to 100% of our automatic uptime checks over the last 30 days. This is a measured signal, not a guarantee.

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Uptime checked: Jul 29, 2026

Rating reflects visitor votes, not our endorsement. Uptime is checked automatically every 3 days.

The reliability index blends measured uptime, response speed, SSL health and visitor votes — uptime weighs most, so a score can't be moved by votes alone. How we rank platforms →

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