Semantara: the Helicone alternative with semantic caching
Helicone is an LLM observability platform (logs, metrics, traces).
Its cache is exact-match (same text), not semantic; and after Mintlify acquired it in 2026 the project went into maintenance mode.
Comparison
| Feature | Helicone | Semantara |
|---|---|---|
| BYOK with no markup | ✓ (proxy) | ✓ |
| Semantic caching (by meaning) | Exact, not semantic | ✓ |
| Complexity-based routing | Not its focus | ✓ |
| Spanish and LatAm focus | ✗ | ✓ |
| Multi-tenant governance | Limited | ✓ |
| Managed (no DevOps) | ✓ | ✓ |
| Entry price | Free + paid plan | From $0 (Free), Pro $39 |
Why Semantara
- Real semantic caching (same meaning, different text)
- Product under active development
- Savings measured in USD, not just observability
When Helicone may be better
If what you mainly want is observability and detailed traces, Helicone is still a good reference.