Router One

An inference host alternative for teams that need every model family

Together AI, Fireworks AI, and Groq are inference hosts: they run (mostly open-weight) models on their own GPU or LPU hardware and compete on tokens/sec and per-token price for those models. Router One solves a different problem — a fully managed, OpenAI-compatible gateway across closed and open model families, with billing, smart routing, and per-request cost traces built in: one key and one wallet for 40+ supported models including GPT, Claude, Gemini, and DeepSeek, reachable globally and from Mainland China.

TL;DR · Pick an inference host like Together, Fireworks, or Groq if you have standardized on open-weight models and want the best serving speed and per-token price for them. Pick Router One if you need closed and open model families — GPT, Claude, Gemini, DeepSeek — behind one OpenAI-compatible endpoint with billing, routing, and traces built in.

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Two different product categories

FeatureRouter OneInference hosts
Product focusUnified gateway across closed and open model familiesServing (mostly open-weight) models fast on their own hardware
Smart routing & fallbackEWMA latency + posted cost + 5xx rate, managedLoad balancing and failover within their own fleet only
Per-request observabilityTraces: final model/provider, tokens, cost, latency, statusUsage and metrics dashboards; request-level tracing via external tools
OpenAI-compatible APIYes — Chat Completions, drop-in base URLYes — drop-in for the open models they host
Provider access & billingClosed and open families through one key and walletTheir own hosted catalog only; no closed frontier families
Accessible from Mainland ChinaChina-reachable endpoint with published latency benchmarkUS platforms; Groq API reportedly blocks Chinese IPs
Payment methodsCard or Alipay in one checkout, USDT/USDC on 6 chainsUSD billing via international payment methods

Where the gateway helps

Every model family, one endpoint

Inference hosts can only run models whose weights they are licensed to host — overwhelmingly open-weight. Router One puts closed and open families — GPT, Claude, Gemini, DeepSeek and more — behind one OpenAI-compatible endpoint with one key and one prepaid wallet.

Routing beyond a single fleet

An inference host's load balancing and failover operate within its own capacity for a given hosted model. Router One's managed smart routing and fallback weigh EWMA latency, posted cost, and 5xx rate, and every trace records the final model and provider that served the request.

Reachable and payable from Mainland China

Groq API requests from Chinese IPs are reported to be blocked, and all three platforms bill in USD via international payment methods. Router One's endpoint serves Mainland China directly. Based on the China latency benchmark last updated 2026-05-15, Router One measured 110-130ms p50 across Beijing, Shanghai, and Shenzhen; individual networks may vary.

View the China latency benchmark ->

Switch with one base URL change

Router One speaks the OpenAI Chat Completions API — the same shape the inference hosts expose — so anything pointed at an OpenAI-compatible endpoint moves over with a base URL and key change, and gains the closed model families an inference host cannot serve.

terminal
# Point your client at Router One
export OPENAI_BASE_URL=https://api.router.one/v1
export OPENAI_API_KEY=sk-your-router-one-key

FAQ

Is Router One an alternative to Together AI, Fireworks, or Groq?

They solve different problems. Together, Fireworks, and Groq are inference hosts: they run (mostly open-weight) models on their own hardware and sell tokens for those models. Router One is a unified gateway across closed and open model families — GPT, Claude, Gemini, DeepSeek and more — on one OpenAI-compatible endpoint with billing, routing, and traces built in. If you only need fast, low-cost open-model serving, an inference host is a fine choice; if you need frontier closed models alongside open ones behind one endpoint, that is a gateway's job.

Can I get proprietary Claude, GPT, or Gemini on an inference host?

No. Inference hosts can only serve models whose weights they are licensed to run, which means open-weight models (including OpenAI's open-weight gpt-oss releases). Proprietary Claude, GPT, and Gemini are not part of any inference host's catalog — access to those families is what a gateway provides.

Do inference hosts route between providers or model families?

No. Their failover and load balancing operate within their own fleet for a given hosted model. Routing between different vendors' models is a gateway-layer concern — an inference host only serves its own catalog.

When is an inference host the better fit?

When your models are open-weight and your bottleneck is serving cost or speed. Groq's LPU hardware delivers roughly 300-1,000 tokens/sec, which is hard to match on general GPU clouds; Together and Fireworks offer broad open-model catalogs, managed fine-tuning (SFT/DPO/LoRA), dedicated capacity at per-hour GPU pricing, and batch and cached-input discounts for large offline jobs. Some teams use both, side by side: a gateway for model breadth across closed and open families, and an inference host called directly for high-volume open-weight serving.

Can I use Together, Fireworks, or Groq from Mainland China?

Groq API requests from Chinese IPs are reported to return 403 Forbidden, so direct access is blocked. All three are US platforms billing in USD via international payment methods, with no Mainland payment options. Router One is built for direct use from Mainland China, with Alipay and card top-ups.

Can I migrate from an inference host to Router One?

Yes. Both sides speak the OpenAI-compatible Chat Completions shape, so most integrations move with a base URL and API key change. Fine-tuned model artifacts and reserved capacity stay on the host — those are platform-specific — but standard open-model and closed-model calls work through the gateway immediately.

More comparisons

Need every model family behind one gateway?

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