CARTIE AI vs Helicone:token observability vs full-stack AI FinOps
Helicone is a great LLM proxy + observability tool — it shows you every prompt, response, and cost. CARTIE AI takes that data and turns it into per-customer P&L, smart routing, and CFO-ready reports.
Use Helicone if you need a developer-first LLM proxy with per-request observability and rate-limiting. Use CARTIE AI if you need to answer "is feature X profitable?" or "which model should we move chat to?" with deterministic math.
- ›You want a proxy in front of OpenAI / Anthropic / Together that logs every call.
- ›Your team needs per-user rate-limits enforced at the LLM layer.
- ›You want prompt versioning + caching at the proxy.
- You need to answer "is `summarise` profitable per customer?".
- You need PR-time + Terraform-plan cost prediction across all infra (not just LLMs).
- You want unified cloud + AI cost rollups, not just LLM observability.
- You want a smart-router that emits drop-in middleware code.
CARTIE AI vs Helicone — feature by feature
As of May 2026. Based on publicly documented features. Spotted an inaccuracy? tell us.
| Capability | CARTIE AI | Helicone |
|---|---|---|
| LLM proxy + per-request logs | yes | world-class |
| Prompt versioning + experiments | yes | world-class |
| Per-feature P&L (revenue minus token cost) | world-class | no |
| Per-customer token heatmap | world-class | no |
| Multi-model smart router with code generation | world-class | no |
| Context window optimizer (LLM-powered) | world-class | no |
| Cache-miss detector (Anthropic prompt caching eligibility) | world-class | no |
| AWS / Azure / GCP / Snowflake / Databricks integration | yes | no |
| PR-time cost prediction for Terraform plans | world-class | no |
| Decision Simulator (rank cost-saving scenarios) | world-class | no |
What it actually costs
Free tier with 10K requests/mo. Pro at $20/seat/mo. Growth $200+/mo by request volume. Enterprise custom.
Free tier for the public free tools (PR-cost, Prompt-cost predictor, Bill Score). Pro at $199/mo flat. Outcome-based for enterprise.