Compare
How TokenPak compares.
We get asked how TokenPak stacks up against the other LLM proxy, gateway, and observability tools. This page is an honest summary. Every row cites a public source or a reproducible benchmark — if something isn't cited, we don't claim it.
Comparisons reflect public documentation as of 2026-04-23. Competitor products evolve — if something below becomes outdated, write to hello@tokenpak.ai and we'll update the row.
Where TokenPak is different
The proxy and request records run locally. Provider-bound prompts and credentials still travel to the provider you configure; TokenPak operates no cloud relay. See the privacy page for logging details.
The headline benchmark exercises a fixed agent-style fixture (`make benchmark-headline`). Its reduction is not a default-proxy savings receipt; applicable CI paths select the benchmark.
Savings attribution is causal — proxy-caused hits are never mixed with provider-side cache hits. Spend Guard catches runaway requests before they reach the provider, returning HTTP 402 with a release directive instead of letting a single agent burn through a budget.
Feature-by-feature
TokenPak column describes the open-source core as it ships today.
| Feature | TokenPak | Helicone | LangSmith | LiteLLM | Portkey | Langfuse | OpenRouter |
|---|---|---|---|---|---|---|---|
| Runtime shape | Local proxy on 127.0.0.1. Byte-preserved passthrough. | Managed SaaS proxy (proxy your requests through helicone.ai). | SDK + hosted observability backend. | Library + optional proxy server. | Managed gateway with hosted control plane. | Self-hostable or cloud observability backend with SDKs. | Hosted model router; requests route through openrouter.ai. |
| Data-exit posture (default) | Nothing leaves your machine except the request you were already sending. | Request bodies + responses flow through Helicone by design. | Traces shipped to LangSmith (hosted) by SDK default. | Local by default in library mode; proxy forwards to provider. | Traffic through Portkey gateway. | Traces shipped to backend (self-hosted or cloud). | All traffic through OpenRouter. |
| Compression / context reduction | Explicit tools can reduce eligible content. The default proxy preserves conversation turns; byte-preserved routes report zero product-attributed reduction. The agent-style CI fixture is a separate measurement. | No compression feature documented. | Observability tool; not a compression product. | Caching + prompt-management; no compression pipeline. | Configurable gateway transforms; not a compression pipeline. | Not a compression product. | Router; not a compression product. |
| Cost tracking | Per-request SQLite ledger with causal attribution. OSS. | Yes (hosted dashboard). | Yes (hosted observability). | Yes (lightweight, library-level). | Yes (hosted). | Yes (cost tracking in observability backend). | Yes (account-scoped). |
| Pre-send spend control (Spend Guard) | OSS — pre-send circuit breaker with rolling caps. Blocks before the request reaches the provider and returns a release directive. | Rate limits available; pre-send budget enforcement not the primary framing. | Observability, not enforcement. | Rate-limit primitives; no pre-send budget enforcement documented. | Rate limits + guardrails available (hosted). | Observability, not enforcement. | Per-key credit limits. |
| License | Apache 2.0 open-source core. Pro is a separate, licensed package. | OSS core + commercial cloud plan. | Commercial. | MIT; commercial support available. | Commercial (hosted) with SDKs. | OSS core (MIT) + commercial cloud + enterprise. | Commercial. |
Reproduce the headline benchmark
Run make benchmark-headline to inspect a fixed
agent-style fixture. This is an explicit benchmark, not evidence that the
default proxy shortens provider conversation turns. Clone the OSS repo and run:
git clone https://github.com/tokenpak/tokenpak
cd tokenpak
make dev
make benchmark-headlineThe owning CI workflow selects this benchmark for applicable changed paths. Its fixture measurements do not establish savings on your requests. Keep observed provider cache reuse separate from TokenPak context reduction.
Spot something wrong?
If a competitor row is out of date or inaccurate, write to hello@tokenpak.ai. We publish corrections within two business days.