Is there a truly free LLM API with no credit card?

Yes — several first-party providers (Google AI Studio, Cerebras, and a few others) issue an API key with a usable free quota and no card on file. The catch is almost always a low rate limit and the right to train on your inputs. Read each provider's terms before sending anything sensitive.

Are 'free relay' or 'public-benefit' LLM sites safe to use?

Treat them as untrusted by default. Relay stations proxy upstream paid APIs through keys of unknown origin, can violate upstream terms of service, may log your prompts, and can disappear overnight. They are fine for throwaway experiments, not for anything you can't afford to leak. FreeAIRouter labels high-risk stations explicitly.

What happens when a free LLM provider shuts down?

Your key stops working with no warning — that's the single most common failure mode for free tiers and relays. The defense is to route across multiple providers with automatic fallback, so one dead endpoint degrades instead of breaking your app.

Which LLMs still have a free tier in 2026 (and the catches)

If you build with LLMs on a side project, a prototype, or just a tight budget, the question never goes away: what can I still call for free in 2026, and what's the catch?

This is a working developer's map. It splits the free landscape into the three groups that actually behave differently, names the catch for each, and links to the live risk data we maintain on the FreeAIRouter radar.

Last updated: 2026-06-16. Free tiers move fast — quotas get cut, providers shut down, terms change. Verify against the linked station pages before you wire anything up.

The three kinds of "free"

Not all "free" is the same. Confusing these is how people end up leaking prompts or building on an endpoint that vanishes.

First-party free tiers — the model vendor gives you a real API key with a free quota. Lowest risk; the catch is rate limits and data-training clauses.
Public-benefit relays — community-run proxies in front of paid upstream APIs. Highest convenience, highest risk. Keys of unknown origin, may break upstream ToS, can vanish.
Free product surfaces — chat UIs and playgrounds that are free to use but not really meant to be called as an API.

1. First-party free tiers (the safe-ish bets)

These come straight from the vendor, so there's no mystery middleman. You still pay in two currencies: rate limits and your data.

Google AI Studio (Gemini) — generous free quota, no card to start. Watch the per-minute limits and the default that free-tier inputs may be used to improve the product. See the live status on the ai.google.dev station page.
Cerebras — fast inference with a free key, popular for open-weight models. Rate-limited but genuinely free; details on the api.cerebras.ai station page.
Cohere — a long-standing trial/free key for their own models, useful for embeddings and rerank. Check the current limits on the api.cohere.ai station page.

The catch: free-tier quotas are the first thing trimmed when a provider tightens costs, and "we may train on your inputs" is the norm, not the exception. Never send secrets, customer data, or anything under NDA through a free tier.

2. Public-benefit relays (convenient, risky)

Relays proxy the big paid APIs (often frontier models) through shared keys. They're everywhere and they're seductive — frontier models for nothing — but the risk profile is the opposite of a first-party tier.

The upstream key's origin is unknown (sometimes leaked or stolen).
They frequently violate the upstream provider's terms of service.
Your prompts may be logged by an operator you can't identify.
They shut down without notice — the single most common failure mode.

If you want to explore what's out there, the FreeAIRouter radar catalogs relay stations with a per-site risk score and flags the high-risk ones. Use it as a warning map, not a shopping list.

3. Free product surfaces

Chat playgrounds and free web UIs are great for manual testing but brittle as a programmatic backend — they rate-limit aggressively, change markup, and aren't contractually an API. Fine for "does this prompt work at all?", wrong for production.

How to actually build on free LLMs

The single most important pattern: don't depend on any one free endpoint. Free tiers and relays are individually unreliable but collectively redundant. Route across several with automatic fallback so a dead key degrades instead of breaking your app.

The shape that works:

Keep an ordered list of providers (cheapest/most-generous first).
On rate-limit (429) or error, fall through to the next.
Cache aggressively — the cheapest call is the one you don't make.
Re-check provider status periodically; free tiers churn weekly.

We keep that provider status current on the main radar, with category, free quota, free models, community reputation, and a risk level for each station.

The honest summary

There is still real free LLM capacity in 2026 — but "free" always has a price tag written in small print: rate limits, your data, or your uptime. First-party tiers are the safe-ish default; relays are a calculated risk; everything benefits from routing with fallback.

Browse the live, risk-scored list on the FreeAIRouter radar →