An OpenAI API Alternative With One Key, 20+ Models, and Flat PAYG Pricing

A cheaper OpenAI API, without the lock-in

If your team already calls the OpenAI API, Riven is built to slot into that workflow. Riven exposes an OpenAI-compatible endpoint, so existing SDKs, client libraries, and request structures work with minimal changes. The difference is pricing, model breadth, and flexibility: a flat $3 per million tokens on pay-as-you-go billing, 20+ frontier models behind one key, and no subscription required.

Flat $3 per million tokens, pay-as-you-go

Riven's API is priced at a flat $3 per million tokens. Pricing does not vary by model tier, context length, or volume bracket. You pay for what you use, when you use it. There is no monthly minimum and no commitment, which makes it a cheaper OpenAI API option for teams that want predictable per-token costs.

20+ models behind a single key

One API key gives you access to 20+ frontier models, including GPT-5.6, Claude, Gemini, GLM, and Kimi. You can route requests to different models from the same integration, so you are never forced to maintain separate credentials, billing relationships, or fallback logic across providers.

No subscription required

Many API providers gate access behind a subscription or usage tier. Riven does not. You can start with pay-as-you-go billing, scale up or down as needed, and stop when the work is done. The chat app and the API share the same account, key, and billing line.

When self-hosting matters

For teams with strict data-residency, compliance, or latency requirements, Riven also offers self-hosted, single-tenant deployments. Self-hosted, single-tenant AI for enterprises that demand control, compliance, and performance. Your infrastructure or ours.

How Riven compares to the OpenAI API

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