Celeris AI vs Nebius AI: Token Pricing, Speed & Intelligence
Full comparison of Celeris AI and Nebius AI — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Updated July 2026.
Celeris AI
High-throughput frontier reasoning with Celeris-1
Celeris AI is a frontier AI lab focused on high-throughput reasoning models. Celeris-1 is their flagship model, combining strong benchmark performance on coding, math, and agentic tasks with competitive inference speed. The model supports a 256K-token context window, prompt caching, and function calling.
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.
Key metrics
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Live token pricing
Strengths & weaknesses
Celeris AI
Nebius AI
Key differentiators
Celeris-1 targets the gap between o3-class reasoning quality and GPT-4o-class speed, offering frontier-tier intelligence scores at throughput rates competitive with non-reasoning models.
European-native infrastructure with GDPR-compliant LLM inference and GPU compute from the same provider — ideal for EU businesses.
Frequently asked questions
Celeris AI FAQs
What is Celeris AI?
Celeris AI is a frontier AI lab that develops high-throughput reasoning models. Their flagship Celeris-1 model targets the intersection of strong reasoning capability and fast inference.
How does Celeris-1 compare to o3 and Claude Opus?
Celeris-1 sits in the same intelligence score range as o3 and Claude Opus 5, with competitive throughput. It is priced similarly to Claude Opus 5 at $3/1M input and $15/1M output.
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.
Provider resources
Celeris AI — High-throughput frontier reasoning with Celeris-1
Celeris AI is a frontier AI lab focused on high-throughput reasoning models. Celeris-1 is their flagship model, combining strong benchmark performance on coding, math, and agentic tasks with competitive inference speed. The model supports a 256K-token context window, prompt caching, and function calling.
Celeris-1 targets the gap between o3-class reasoning quality and GPT-4o-class speed, offering frontier-tier intelligence scores at throughput rates competitive with non-reasoning models.
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.
Key strengths compared
Celeris AI
- ▸Strong reasoning and coding benchmarks
- ▸High throughput at frontier tier
- ▸Competitive prompt caching pricing
Nebius AI
- ▸European data centres — GDPR-compliant by default
- ▸Competitive pricing on open-weight models
- ▸GPU compute + LLM inference from one provider
Provider category context
Celeris AI is a frontier lab, founded in 2025. Nebius AI is a inference api, founded in 2023. Celeris AI as a frontier lab trains and serves its own proprietary models. Nebius AI as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers but without access to proprietary frontier models.
How to choose between them
Choose Celeris AI if you need strong reasoning and coding benchmarks. Choose Nebius AI if you need european data centres — gdpr-compliant by default. 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.