GPT-5.5
OpenAI's multimodal flagship. Vision, reasoning, and code.
The AI productivity platform
You're not just buying AI credits — you get a solution that makes the most of every model and adapts to your work, boosting your productivity. Every leading provider in one place, fully under your control — and 100% OpenAI API-compatible.
Every model in the world, behind one address.
Kallavy doesn't resell tokens or push consumption on you. Every request is metered in real time, attributed to the right client, and visible in your dashboard. You pay only for what you actually use.
leading models under a single API. Switch whenever you want.
of input and output tokens metered per client, in real time. Zero estimates.
availability, with automatic fallback between providers.
Swap your base_url, keep your favorite library. Python, Node, Go, cURL — works the same. The response comes back in the format you already know.
Connected to the world's leading AI providers
Dozens of models from the world's largest providers, under one API. During onboarding, Kallavy learns your work and recommends the right mix for each task — switch whenever you want, without touching your integration.
OpenAI's multimodal flagship. Vision, reasoning, and code.
Fast and cheap for high request volume.
Anthropic's most capable model. Deep reasoning and 1M context.
Top-tier reasoning at great value. The workhorse.
Giant context for analyzing long documents.
Ultra-fast and cheap. A favorite for support chatbots.
Outstanding value for general use at scale.
Frontier step-by-step reasoning at a fraction of the price.
Strong at multilingual and code generation, open weights.
Meta's open model: strong, efficient, and lock-in free.
Alibaba's flagship. Excellent at code and multilingual context.
You ask for quality or cost, Kallavy picks the best model on the fly.
And many more — the list grows every week. See the full docs with prices and SLAs.
base_url to https://api.kallavy.com/v1 and use your Kallavy key. Works with the official openai library in Python, Node, Go, and more.Start in 5 minutes
Create your account, add credits, and make your first request in under 5 minutes. No lock-in, no waste.