Nebius AI vs OpenAI: Token Pricing, Speed & Intelligence
Full comparison of Nebius AI and OpenAI — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Updated July 2026.
Nebius AI
European cloud AI — affordable open-source inference from ex-Yandex team
Nebius AI is a European cloud provider built by the team behind Yandex Cloud, offering GPU compute and LLM inference services. Their inference API hosts Llama and other open-weight models at competitive prices, with data centres in Europe for GDPR-compliant deployments.
OpenAI
GPT-4o, o3, and the world's most widely-used AI API
OpenAI is the creator of the GPT model family and the ChatGPT product. Their API provides access to frontier models including GPT-4o, the o-series reasoning models, and the GPT-4.1 long-context family. Pricing is competitive for frontier-tier capability, with prompt caching available on most models.
Key metrics
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Live token pricing
Strengths & weaknesses
Nebius AI
OpenAI
Key differentiators
Frequently asked questions
Nebius AI FAQs
Is Nebius AI GDPR-compliant?
Yes. Nebius AI operates data centres in Europe (Amsterdam and other EU locations), making it a strong choice for European businesses with GDPR data residency requirements.
What models does Nebius AI offer?
Nebius AI hosts Llama 3.x and other popular open-weight models via their inference API. They also offer GPU compute for self-hosted model deployment.
Who built Nebius AI?
Nebius AI was founded by the team behind Yandex Cloud, one of Europe's largest cloud providers. They bring significant cloud infrastructure experience to the AI inference market.
OpenAI FAQs
How much does the OpenAI API cost?
GPT-4o costs $2.50/1M input tokens and $10/1M output tokens. GPT-4o-mini is $0.15/$0.60 per 1M tokens. Prompt caching cuts input costs by 50% on eligible requests.
What is the difference between GPT-4o and o3?
GPT-4o is a fast, multimodal model optimised for chat, vision, and coding. o3 is a reasoning model that uses chain-of-thought to solve complex problems — it is slower and more expensive but significantly more capable on math, science, and hard coding tasks.
Does OpenAI support prompt caching?
Yes. Prompt caching is available on GPT-4o, GPT-4.1, o3, and o4-mini. Cached input tokens are billed at 50% of the standard input price, making long-context and repeated-system-prompt workloads significantly cheaper.
Provider resources
Nebius AI — European cloud AI — affordable open-source inference from ex-Yandex team
Nebius AI is a European cloud provider built by the team behind Yandex Cloud, offering GPU compute and LLM inference services. Their inference API hosts Llama and other open-weight models at competitive prices, with data centres in Europe for GDPR-compliant deployments.
European-native infrastructure with GDPR-compliant LLM inference and GPU compute from the same provider — ideal for EU businesses.
OpenAI — GPT-4o, o3, and the world's most widely-used AI API
OpenAI is the creator of the GPT model family and the ChatGPT product. Their API provides access to frontier models including GPT-4o, the o-series reasoning models, and the GPT-4.1 long-context family. Pricing is competitive for frontier-tier capability, with prompt caching available on most models.
The most widely-integrated LLM API — virtually every AI framework and tool supports OpenAI natively.
Key strengths compared
Nebius AI
- ▸European data centres — GDPR-compliant by default
- ▸Competitive pricing on open-weight models
- ▸GPU compute + LLM inference from one provider
OpenAI
- ▸Largest ecosystem & third-party integrations
- ▸Best-in-class function calling & structured outputs
- ▸Prompt caching on all major models
Provider category context
Nebius AI is a inference api, founded in 2023. OpenAI is a frontier lab, founded in 2015. Nebius AI as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers. OpenAI as a frontier lab trains and serves proprietary models with capabilities not available elsewhere.
How to choose between them
Choose Nebius AI if you need european data centres — gdpr-compliant by default. Choose OpenAI if you need largest ecosystem & third-party integrations. For high-volume production workloads, run a cost comparison using the token pricing table above with your actual prompt/completion token ratio — the cheapest provider depends heavily on your input-to-output token ratio.