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Portkey Alternatives in 2026: 10 Gateways Compared

Updated 2026-08-16 · ~5 min read

If you are leaving Portkey over billing — wanting a hard ceiling rather than a bill settled afterwards — SuperbAPI is the closest fit: prepaid credit, no subscription, and a budget cap per key. If you are leaving over what Portkey covers, LiteLLM is the nearest substitute, being a layer in front of the provider accounts you hold yourself. Both, and eight more, are ranked below — with a straight account of where Portkey is still the better answer.

Why do people look for Portkey alternatives?

The keys. A layer improves how you call the providers you have already signed up with; it does not remove the need to sign up. Teams that wanted one relationship, one balance and one invoice find they still have several, plus a layer to operate on top.

The 10 alternatives at a glance

This is a comparison published by SuperbAPI, and SuperbAPI is listed first. Billing models are shown rather than prices: rates change often enough that any figure printed here would be wrong before it was useful. Check current pricing with each provider.

The 10 alternatives in detail

1. SuperbAPI

An independent, prepaid, OpenAI-compatible aggregator: one balance, one base URL, and text, code, image and video models behind a single key.

You top up once and every call draws down that balance at the model's own rate — no subscription, no monthly minimum, and no invoice arriving after the fact. Keys can be scoped to specific models and given a budget cap, so a test key cannot spend production's money, and credit is valid for 12 months. Requests fail over to another upstream serving the same model, and a call that ultimately fails bills nothing.

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2. LiteLLM

An open-source SDK and proxy that normalises a very large number of providers to the OpenAI format, run on your own infrastructure.

Same category as Portkey — a layer in front of the provider accounts you hold yourself — so the switch is a like-for-like one. The difference that matters is billing: open source, self-hosted; paid enterprise tier, against Portkey's saas or self-hosted; you bring provider keys.

3. Helicone

An observability platform for LLM traffic — request logging, tracing, cost attribution — reached through a proxy or async ingestion.

Same category as Portkey — a layer in front of the provider accounts you hold yourself — so the switch is a like-for-like one. The difference that matters is billing: open source or cloud; you bring provider keys, against Portkey's saas or self-hosted; you bring provider keys.

4. Vercel AI Gateway

A routing and failover gateway integrated with the Vercel AI SDK and the rest of the Vercel platform.

Same category as Portkey — a layer in front of the provider accounts you hold yourself — so the switch is a like-for-like one. The difference that matters is billing: credits or bring-your-own-key, inside the vercel platform, against Portkey's saas or self-hosted; you bring provider keys.

5. Cloudflare AI Gateway

An edge layer in front of the provider accounts you already hold, adding caching, rate limiting, retries and analytics.

Same category as Portkey — a layer in front of the provider accounts you hold yourself — so the switch is a like-for-like one. The difference that matters is billing: platform feature; you bring provider keys, against Portkey's saas or self-hosted; you bring provider keys.

Also worth knowing

These are further from what Portkey does, but each is the right answer to a specific question:

• 6. OpenRouter — The widest model catalogue behind a single OpenAI-compatible key. Credits, plus bring-your-own-key.
• 7. Together AI — Open-weight inference and fine-tuning at serious volume. Postpaid, pay-as-you-go.
• 8. Fireworks AI — Low-latency open-model serving with production tuning. Postpaid, pay-as-you-go.
• 9. Groq — The fastest tokens per second on a curated open-model set. Postpaid, with a free tier.
• 10. Replicate — Image, video and audio models, plus custom model deploys. Per-second compute.

Where Portkey still wins

Control and depth of observability. If you have negotiated rates, compliance requirements that pin you to a specific vendor account, or need guardrails and tracing at a level a reseller will not expose, a layer over your own keys is the right architecture and an aggregator is not. This is an either/or worth thinking about properly.

How to migrate off Portkey

These are different architectures, not competing products, so "migrating" means deciding whether you want to hold provider accounts at all. If you do, keep Portkey. If the appeal was one key and one bill, an aggregator removes the accounts rather than wrapping them.

Portkey alternatives: common questions

Is Portkey an alternative to an AI gateway like SuperbAPI?

They solve different problems. Portkey adds routing and observability over provider accounts you hold yourself; an aggregator replaces those accounts with one key and one balance. Choose by whether you want to keep direct vendor relationships.

Do I still need OpenAI and Anthropic accounts with Portkey?

Yes. It is a layer in front of your own keys, so the accounts, the rate limits and the invoices remain yours.

When is a layer the better choice?

When you have negotiated pricing, compliance rules that require a direct vendor relationship, or need deeper tracing and guardrails than a reseller exposes.

Where SuperbAPI fits

SuperbAPI is an independent, prepaid, OpenAI-compatible aggregator: one wallet, one base URL, and text, code, image and video models behind a single key. Keys can be scoped to specific models and capped with a budget, so the balance is a hard ceiling rather than a starting point.

See the models →

SuperbAPI is an independent aggregator and is not affiliated with, endorsed by, or partnered with any model owner. Third-party product names are used nominatively to describe compatibility and routing. Comparisons reflect our understanding at publication and may change.