Infron
Verified Oct 15, 2026 ActivePay-as-you-go gateway to about 500 AI models through one OpenAI-compatible API, with provider routing, fallbacks and a single balance.
Listed on EffectHub ·
Pricing
- Pricing model
- Paid
Usage-based with no subscription: you top up credits, model prices are passed through with 0% markup, and each top-up carries a platform fee of 5% plus $0.35 (3% on Enterprise, with volume discounts up to 30%). Free model variants need a balance of $5 or more and are capped at 1,000 requests a day.
Use tool ↗About Infron
Infron, previously sold as OneRouter, is an inference gateway: one OpenAI-compatible API reaching about 500 catalogued models (chat LLMs, media, embeddings, rerankers and search) through official partner routes. You set the provider order and fallbacks, and get prompt caching, budgets and usage logs in one dashboard. Billing is prepaid credit with model prices passed through at the provider's rate, plus a platform fee on each top-up; bring-your-own-key traffic carries no fee, and selected models have free variants with daily request limits. It is run by CertainAI Inc. in San Francisco and aimed at teams that want to switch models without separate vendor contracts.
- Platforms
- Web · API
- API
- Yes
- Last verified
- Oct 15, 2026
Verified sources
- Pricing and fee structure doc: usage-based, no subscription, 0% model markup; platform fee 5% + $0.35 per transaction on pay-as-you-go and 3% on Enterprise; BYOK 0% fee; credits never expire (15 October 2026)infron.ai ↗
- Home page brands the product as Infron ('AI inference for growing businesses'), one OpenAI-compatible API with provider routing and fallbacks; footer reads 'Copyright © CertainAI Inc.' with a San Francisco address; SOC 2 Type II 'Audit in progress' (15 October 2026)infron.ai ↗
- Model marketplace lists 505 entries (15 October 2026)infron.ai ↗
- onerouter.pro and www.onerouter.pro redirect to infron.ai (15 October 2026)onerouter.pro ↗
Is Infron legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Jan 7, 2026Registry record (RDAP), registrar GoDaddy.com, LLC, looked up Sep 20, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Dec 27, 2026Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
- On the market since
- 2026The vendor's own material, read by us
- Operated by
- CertainAI Inc., United StatesOur research, card verified Oct 15, 2026
Pros & cons of Infron
Infron is the former OneRouter recast as a general inference gateway: one OpenAI-compatible API across roughly 500 models, provider order and fallbacks you set yourself, and model prices passed through without markup. It suits teams already spreading work across several model vendors who want one integration and one balance; a single-model shop gains little and pays a 5% fee on every top-up.
Pros
- About 500 catalogued models (LLMs, media, embeddings, rerankers, search) behind one OpenAI-compatible API
- Model prices passed through at the provider's rate with no markup, and credits never expire
- Provider preference order, fallbacks, prompt caching and spend budgets are configurable
- Free variants of selected models for testing, within daily request limits
Cons
- Every pay-as-you-go top-up pays 5% plus $0.35 (3% on Enterprise)
- Pay-as-you-go credits are non-refundable; only business accounts can reclaim unused balance
- SOC 2 Type II is listed as an audit in progress rather than a completed report
Best for
- Product teams calling several model families who want one API key and one bill
- Developers who want provider fallbacks without building their own retry layer
- Teams with existing provider keys, since bring-your-own-key traffic carries no platform fee
Not for
- Anyone committed to a single model vendor, where going direct avoids the top-up fee
- Buyers who need a completed SOC 2 report today, as the audit is listed as in progress
Watch out: This product was catalogued as OneRouter; that name is gone from the site and onerouter.pro forwards to infron.ai. The fixed $0.35 per top-up means many small top-ups cost proportionally more than one large one.
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