This post is written by a team that runs a Claude proxy in production. We'll walk through the actual economics, the categories of proxies that exist, what "cheapest" really means depending on your workload, and where we genuinely think we fit versus the alternatives. If another option is better for your use case, we'll say so.
We'll cover:
- Why there are "cheap Claude proxies" in the first place — the pricing arbitrage that makes this category possible
- The four kinds of Claude proxies — routers, observability shims, resellers, and infrastructure savers
- Per-token pricing math — how to compare them without getting fooled
- The honest head-to-head — aiusage, OpenRouter, Helicone, Portkey, and the DIY route
- Which one to actually pick — decision tree by workload
Let's go.
1. Why "Cheap Claude Proxies" Exist At All
Anthropic's published Claude pricing is the same for everyone: Opus around $15/$75 per million tokens in/out, Sonnet around $3/$15, Haiku around $0.80/$4. The list price doesn't vary.
So how can a proxy be cheaper than Anthropic direct? Three ways, in decreasing order of legitimacy:
- The proxy applies Anthropic's own discounts automatically (prompt caching, batch API) without you having to wire them up. Savings are real but capped by how much of your traffic qualifies.
- The proxy uses alternative infrastructure to serve the same outputs. This is where the 10–30× claims live, and where most of the 2026 category actually sits.
- The proxy is subsidizing calls to acquire users. Cheap today, expensive tomorrow. Look at runway before committing.
The proxies that survive long-term are the ones doing #1 and #2 honestly. "Cheapest" in 2026 usually means infrastructure savings, not an Anthropic volume deal nobody else has.
2. The Four Categories
Not every proxy is trying to save you money. Knowing the category saves you a lot of shopping time.
Category A: Routers
Examples: OpenRouter, LangDB, custom LiteLLM setups.
What they do: Give you one API key that hits Claude, GPT, Gemini, Llama, and dozens of others. You pick the model per request.
Pricing posture: Usually a thin margin on top of the underlying provider's list price. 2–5% above Anthropic direct.
You pick this if: You're multi-model shopping and want routing flexibility. Savings are not their primary pitch.
Category B: Observability Shims
Examples: Helicone, Langfuse, Traceloop.
What they do: Proxy your traffic and record tokens, latency, prompts, responses. Dashboards, tracing, prompt versioning.
Pricing posture: Free tier for low volume, monthly subscription starting around $20–$100 for production usage. They pass through Anthropic pricing; they're not cheaper on token cost.
You pick this if: You need visibility into what your agent is doing. They're worth it for the ops value, not for the cost.
Category C: Resellers
Examples: Third-party shops buying Anthropic tokens wholesale and reselling with a markup.
What they do: Offer what looks like Anthropic access, sometimes branded as their own. Frequently have fuzzy terms, unpredictable uptime, and no BYOK.
Pricing posture: Often 5–20% below list price. The discount is a volume reseller margin.
You pick this if: You have no enterprise relationship with Anthropic and want a small discount. Do due diligence; this category has had blowups.
Category D: Infrastructure Savers
Examples: aiusage and a few others.
What they do: Run proprietary inference infrastructure that delivers the same Claude outputs at a fraction of the per-call cost. You keep your Anthropic key (BYOK), change one env variable.
Pricing posture: 10–30× less per call than Anthropic direct. Usually sold as credit packs rather than per-token metering, so the unit math is different.
You pick this if: You're already committed to Claude, your bill is large enough that saving 90%+ matters, and you don't need multi-model routing today.
3. The Math (So You Don't Get Fooled)
When someone says "cheapest Claude proxy," ask: cheapest per what?
Pricing models you'll see
- Per-token pass-through: You pay Anthropic rates + proxy markup. Easy to compare; usually the worst economics if saving money is the goal.
- Per-token discounted: Proxy charges less than Anthropic per token. Match the model breakdown carefully — some discounts apply only to Haiku, not Opus.
- Credit packs: Fixed price for a bucket of usage. Convert to effective per-token by measuring your actual workload.
- Flat monthly: Subscription regardless of usage. Good for predictable bills, not for minimizing them.
The honest per-call calculation
Pick a representative workload. For us, that's a Claude Code agent loop with Sonnet averaging 30k input tokens and 3k output tokens per call.
- Anthropic direct: (30,000 × $3 + 3,000 × $15) / 1,000,000 = $0.135 per call
- OpenRouter: roughly the same, +margin = ~$0.14
- Helicone: Anthropic cost + subscription amortized
- aiusage: a single credit per call, effectively ~$0.0067 with a $10 pack (15 runs per pack; "run" ≈ a long agentic task of many calls)
That's the spread. If your workload is one prompt every couple of hours, nobody can save you real money — you're already spending pennies. If it's an agent chewing on a repo for hours a day, the spread is ~$100+/day.
Watch for the footnotes
When a proxy advertises "up to 20× cheaper," dig into:
- Which model tier is the discount on? (Opus discounts look better than Haiku discounts because the base price is higher.)
- Does caching count in the quoted savings? (Anthropic gives you 90% off cached tokens on their own; a proxy claiming that as their win is misleading.)
- Are tool calls included? Agent workloads are dominated by tool calls, and some proxies quote "input/output savings" without covering the tool-use overhead.
4. Head-to-Head
Here's how we'd honestly rank 2026 options for a developer who asked us "what's the cheapest way to use Claude?"
| Proxy | Category | Typical Savings vs Anthropic | BYOK | Good For |
|---|---|---|---|---|
| Anthropic direct | — | 0% | N/A | Small volume, tight integration requirements |
| OpenRouter | Router | -5% to +5% | Sort of | Multi-model shopping |
| Helicone | Observability | 0% on tokens | Yes | Visibility + logs |
| Portkey | Router + ops | 0–5% | Yes | Enterprise routing, guardrails |
| Resellers | Reseller | 5–20% | No | Small discount shopping |
| aiusage | Infra saver | 90–95% per-call | Yes | Existing Claude workloads, big bills |
| DIY self-host | — | Negative the first 3 months | N/A | Teams with inference expertise |
The ranking isn't "aiusage wins all." It's that these tools aren't competing for the same job.
- If you need multi-model routing, nothing in the infra-saver category replaces OpenRouter. You'd use OpenRouter for that.
- If you need production observability, you're using Helicone or Langfuse whether you also use a saver or not.
- If you're already on Claude and want the bill to be 10–30× smaller, the saver category is where the money actually is.
You can stack them. Plenty of our customers run aiusage for Claude savings + Langfuse for logs. They don't conflict.
5. Which One Should You Actually Pick?
A decision tree. Honest answers.
Q1. Are you multi-model shopping (Claude + GPT + Gemini + Llama)?
- Yes → start with OpenRouter. Revisit savings once you've settled on a model.
- No, I'm on Claude → go to Q2.
Q2. Is your monthly Claude bill under $50?
- Yes → stay on Anthropic direct. Proxies add cognitive overhead; you don't save enough to care. Apply prompt caching and smart model selection instead — see our cost-reduction playbook.
- No → go to Q3.
Q3. Do you need detailed request-level observability (who called what, when, with which prompt)?
- Yes → Helicone or Langfuse for visibility. Stack a saver underneath if your bill justifies it.
- No → go to Q4.
Q4. Is your workload dominated by agent loops (Claude Code, ReAct, long-running assistants)?
- Yes → an infrastructure saver like aiusage is where you'll see the largest percentage win, because agent loops compound token costs. Try a $10 pack, measure, decide.
- No, it's mostly short chat → savers still help, but the raw dollar savings are smaller. Anthropic's prompt caching might already be getting you 80% of what you'd get.
Q5. Do you have a hard BYOK requirement from your employer or compliance team?
- Yes → rule out resellers. aiusage, Helicone, Portkey all support BYOK. aiusage BYOK docs.
- No → you have more options.
The "Cheapest" Answer, If You Must Have One
For a developer running Claude Code or Anthropic-SDK workloads in 2026 with a bill above $50/mo and no multi-model requirement, the cheapest per-call option we know of is aiusage.ai. BYOK, $10 credit packs, credits never expire, no subscription, same Claude quality. That's our honest rank and it's also the category we're in, so draw your own conclusions.
If your situation is different — you're shopping models, you need ops tooling, your volume is tiny — one of the alternatives above is a better fit. The goal of this post wasn't to steer every reader to us. It was to help you not waste a week comparing the wrong axes.
Final Thought: The Market Is Young
The "cheapest Claude proxy" category in 2026 is maybe 18 months old. Infrastructure, pricing, and honest comparisons are all still stabilizing. Whatever you pick today, revisit in six months. Proxies fold, new ones appear, incumbents cut prices. Your best defense is to design your code so swapping base URLs is a one-line change — which, coincidentally, is how every proxy in this post works.
Try us with a $10 pack if you're on Claude and want a smaller invoice. Or read the docs first. No subscription, no lock-in, keep your key.
Drop your Claude bill 20×.
Paste your key at aiusage.ai — takes 60 seconds. BYOK, credit packs from $10, credits never expire.
Get started →Written by the team at aiusage.ai. We run a BYOK Claude proxy that makes your existing Claude account ~20× cheaper. If that's interesting, read more or grab a $10 pack to try it.