Keywords AI

The enterprise-grade software to build, monitor, and improve your AI application. Keywords AI is a full-stack LLM engineering platform for developers and PMs.

Freemium
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Web, API
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AI for DevelopersDesignCode

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Free plan available
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What is Keywords AI?

Keywords AI is a platform designed to help developers and product managers build, deploy, and maintain AI applications at scale. It combines observability, evaluation tools, prompt optimisation, and a unified gateway for managing multiple large language models in one place. The platform sits between your application and various LLM providers, giving you visibility into how your AI is performing and tools to improve reliability without reworking your entire codebase. It's particularly useful for teams moving beyond simple prototypes to production systems where monitoring costs, latency, and output quality matters.

Key features

LLM gateway

Route requests to different language models through a single interface, with load balancing and fallback options

Observability

Track API calls, costs, latency, and token usage across all your LLM integrations

Prompt evaluation

Test and compare different prompts against your data to measure performance before deployment

Prompt optimisation

Iteratively improve prompts based on real-world performance data

Monitoring dashboard

View metrics and alerts to catch issues in production quickly

Pros & cons

Advantages

Gives you detailed visibility into LLM behaviour and costs, which is important for controlling expenses
Works with multiple LLM providers without forcing vendor lock-in
Freemium model lets you try the core features without committing to a paid plan
Reduces the overhead of managing different API integrations across your team

Limitations

Requires integrating another service into your application pipeline, adding a dependency
Learning curve for teams new to LLM observability and optimisation workflows