I think most LLM gateway comparisons are backwards. The answer isn't price, it's pain.
most LLM gateway comparisons I see are useless. They start with price and model count, but that’s not how the pain shows up in a team.
Our team is about 10 people, a mix of engineering and growth. Over the last year, our AI usage has become a mess. We’re running:
- Coding agents (Claude Code, Codex) for refactoring and test scaffolding.
- Content agents (Hermes, OpenClaw) for research and monitoring.
- A support triage agent for routing tickets.
- Internal ops agents for summarizing logs and Slack threads.
at first, we just used direct APIs and some OpenRouter for exploration. That worked fine. Then it didn’t. We ended up with about a dozen scattered API keys, finance couldn't trace costs, and when a provider had a latency spike, it was a nightmare to debug.
So I spent the last six weeks evaluating the four main routes. Here’s how I broke it down.
- Direct Provider APIs (OpenAI, Anthropic, Google, etc.)
This was our starting point. Direct APIs are clean, trustworthy, and you have the least latency overhead. For a two-person team building one thing, it's the right answer. The problem is, they’re not built for team-level governance. The moment different services start using different providers, the simplicity moves from the app layer to a platform-level headache. Key ownership gets murky, and asking "which service ran up teh bill last night?" becomes an investigation.
- OpenRouter
this was the logical next step for us. One API for 400+ models, a single bill, and an OpenAI-compatible endpoint that just works. It's fantastic when your main problem is exploration and fast prototyping. We solved the "how do we access this new model?" problem instantly.
But it didn't solve our internal operating model. We still needed to figure out project-level ownership, team-specific rules, and cost attribution. OpenRouter is great at solving the ACCESS problem, but our pain had shifted to the GOVERNANCE problem.
- Self-hosting with LiteLLM
I respect this route the most. LiteLLM is powerful. It’s not just a wrapper; it’s a full self-hosted gateway. You get virtual keys, per-user budgets, and total control over your observability stack. If you have the platform engineering bandwidth, this is a very compelling option.
The tradeoff is that you are now operating a new piece of critical infrastructure (and all the on-call that comes with it). You own the proxy, the database for the keys, the monitoring, and the production reliability. We did a trial run and realized our bottleneck wasn't a lack of a proxy, it was the time to maintain one reliably.
- Ops-shaped Hosted Gateways
this is the category for teams that want the control of a gateway without the operational burden. I bucketed tools like Portkey, Helicone, Cloudflare AI Gateway, and ZenMux here. They’re less about being a massive model marketplace and more about providing a production control plane: logs, fallbacks, cost visibility, and team-level governance.
This route made sense only after our pain shifted from "can we access this model?" to "who owns this API call and how do we debug it?"
We ended up leaning toward ZenMux from this group, mostly because our specific pain points were model freshness, protocol compatibility for tools like Claude Code and Codex, and request-level cost/latency visibility for our on-call engineer. It felt like the right fit for a team that needed production-grade PAYG without wanting to operate the gateway ourselves.
Anyway, the benefits of moving to a unified layer showed up fairly quickly.
- Our ~12 scattered keys consolidated to 4 project-level keys.
- The monthly AI spend review went from a 2.5-hour meeting to a 25-minute check-in.
- When a new model drops, we can test it on a single, non-critical workflow without touching every repo.
The most interesting part: our overall spend dropped about 15%. Not because the tokens were cheaper, but because we could finally see the waste. Premium models were being used for simple classification, and some agents had broken retry logic. The gateway just made that visible. its not a magic bullet, of course. We still have to actively manage our model policies, but at least the data is now in one place.
i would not tell a 2-person team to buy a gateway. I would not tell an infra-heavy team to avoid LiteLLM. The mistake is pretending all four routes solve the same problem. They solve for different stages of pain.
If you’re running multiple models in production, what did you choose and why? At what point did a gateway stop feeling like overkill for your team?