Pricing
Start free. Pay when you need evaluation.
Tracing is free for one project on every plan. Evaluations, datasets, simulations and the rest of the gated surfaces are on paid plans.
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What each plan gates, taken from the feature matrix the product enforces
Questions
- What counts as a span?
- Every traced LLM call, tool invocation, HTTP request, or DB query your SDK captures counts as one span. A single agent turn is usually 3–10 spans depending on how many tools it calls.
- Are the SDKs actually free?
- Yes. The Python, TypeScript, Go and Java SDKs are Apache-2.0 licensed and free on every plan, including Free. You’re only billed for what you export to the hosted platform.
- What happens if I go over the Free plan’s limit?
- We’ll email you before you hit 10,000 spans for the cycle. Nothing breaks automatically — there’s no card on file and no surprise charge.
- Why isn’t evaluation included in Free?
- Tracing tells you what happened; evaluation tells you if it was any good. The judge-model calls behind evaluation cost us real inference, so that’s where the free tier draws the line.
- Can I switch plans or cancel?
- Anytime — email founder@syntropylabs.ai and we’ll make the change. No long-term contract.
Something else? founder@syntropylabs.ai