Comparison
Helicone is an LLM observability platform — logs, traces, evals, session replay. NeuralRouting is an intelligent LLM router focused on automatic cost optimization with quality validation. They solve different problems, and honestly, many teams end up running both.
TL;DR — 5 dimensions
| Dimension | NeuralRouting | Helicone |
|---|---|---|
| Primary job | Cut LLM cost per request | Observe & evaluate LLM calls |
| Routing intelligence | Automatic, per-prompt | None (proxy-only) |
| Cost reduction | 60–85% out of the box | Indirect (insights only) |
| Observability depth | Dashboard + per-request logs | Full traces, sessions, evals |
| Pricing posture | Savings-aligned tiers | Pay-per-log volume |
| Feature | NeuralRouting | Helicone |
|---|---|---|
| Intelligent per-query routing | Routes by prompt complexity automatically | Proxy-through, no routing |
| Model Cascading | Cheap → mid → premium, auto-escalation | Not available |
| Semantic caching | All tiers, meaning-based dedup | Exact-match caching (Pro+) |
| Quality validation (Shadow) | Every economy response validated vs premium | Evals framework (manual setup) |
| Observability / traces | Per-request logs + dashboard | Full trace, session replay, evals |
| Prompt experimentation | Not the focus | Prompts, playground, A/B |
| Prompt security / guardrails | Built-in shield, all tiers | Not core product |
| Multi-provider failover | Automatic | Not routing-aware |
| OpenAI SDK compatible | ||
| Self-hosting | Managed only | OSS self-hostable |
| Free tier | 5K credits | 10K requests/mo |
| Starter price | $29/mo | $20/mo (Pro) |
NeuralRouting lowers the bill automatically by sending simple prompts to cheap models. Helicone shows you the bill in exquisite detail — but acting on it is your job.
Helicone's session replay, prompt experiments, and eval framework are genuinely best-in-class. NeuralRouting gives you per-request logs and savings analytics, not full trace tooling.
NeuralRouting classifies every prompt and picks a model. Helicone proxies the request to whatever model you hard-coded. Different abstractions — both legitimate.
Honest take: these products aren't mutually exclusive. Plenty of teams run Helicone for observability and NeuralRouting in front of it for cost routing. They address different layers.
See NeuralRouting pricing. Free tier, no credit card, OpenAI SDK compatible.
See pricing