Helicone
Open-source LLM observability
A solid emerging choice. Best if you already know you need data and want to experiment.
Helicone is an open-source proxy and platform for logging, caching, rate-limiting and evaluating LLM calls.
Developers who want per-request LLM logging, caching and cost tracking in minutes.
Knowledge workers across functions
Teams that need on-prem deployment or strict data-residency guarantees
Pros & cons
- Request logging
- Strong fit for developers who want per-request llm logging, caching and cost tracking in minutes.
- Real free plan you can ship work with
- Advanced features may require a higher tier
- Output quality varies with prompt skill
- Limited offline use — internet required
Why we scored it 67/100
The ToolHund Score blends five signals. Hover any bar for the weight. See the full rubric →
We refresh entries monthly and re-score whenever pricing, features, or reviews change materially. See methodology →
Gentle — productive within 10 minutes
Works for solo creators all the way up to small teams
Strong — free plan covers most casual use, paid unlocks pro workflows
What you get
- Request logging
- Caching
- Rate limiting
- Cost tracking
Compare Helicone with alternatives
Pick a rival and see the side-by-side breakdown, plus how the community votes.
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Why trust ToolHund?
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