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Deep Infra vs Lepton AI: Token Pricing, Speed & Intelligence

Full comparison of Deep Infra and Lepton AI — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Updated July 2026.

Deep Infra

The cheapest inference API for open-weight models — Llama, Mistral, and more

Deep Infra is an inference-focused API provider specialising in open-weight models at extremely competitive prices. Consistently among the cheapest providers for Llama 3, Mistral, and DeepSeek models, making it the go-to choice for cost-sensitive production inference.

Cost-sensitive inferenceLlama 3 productionDeepSeek hostingHigh-volume batch processing
Open-weight hostHosts open weights

Lepton AI

Serverless LLM inference with a developer-first API

Lepton AI offers serverless inference for popular open-weight models with a clean developer experience. Their platform supports Llama 3.3 and other leading open-source models with competitive per-token pricing and low-latency endpoints. A good choice for developers who want simple, scalable inference without infrastructure management.

Developer toolsServerlessOpen-sourcePrototypingCost-efficiency
Open-weight hostHosts open weights

Key metrics

Cheapest input ($/1M)

Cheapest output ($/1M)

Peak throughput

Best latency (TTFT)

Intelligence score

Context window

Live token pricing

Strengths & weaknesses

Deep Infra

Consistently lowest prices for open-weight models
Wide model catalog including Llama, Mistral, DeepSeek
OpenAI-compatible API
Fast cold start times
No rate limits on most models
No proprietary models — open-weight only
Less enterprise support than larger providers
Smaller ecosystem than Together AI or Fireworks

Lepton AI

Clean developer experience with minimal setup
Serverless — no infrastructure management
Competitive pricing on Llama 3.3 models
OpenAI-compatible API
Auto-scaling handles traffic spikes
Smaller model catalog than Together AI or Fireworks
Less established than larger inference providers
No fine-tuning support

Key differentiators

Deep Infra

The most price-competitive inference API for open-weight models — often 30–50% cheaper than comparable providers for the same Llama or Mistral model.

Lepton AI

The simplest serverless inference API for open-weight models — minimal setup, auto-scaling, and a clean developer experience.

Frequently asked questions

Deep Infra FAQs

How cheap is Deep Infra compared to other providers?

Deep Infra is consistently among the cheapest providers for open-weight models. For example, Llama 3.1 8B is available at $0.02–0.05/1M tokens, and Llama 3.3 70B at around $0.10/1M tokens — often 30–50% below comparable providers.

What models does Deep Infra support?

Deep Infra hosts a wide range of open-weight models including the full Llama 3.x family, Mistral, Mixtral, DeepSeek V3 and R1, Qwen, and many others. The catalog is updated frequently as new models are released.

Is Deep Infra OpenAI-compatible?

Yes. Deep Infra provides an OpenAI-compatible API, so you can use the OpenAI SDK by pointing it at the Deep Infra endpoint. This makes migration straightforward.

Lepton AI FAQs

What models does Lepton AI support?

Lepton AI hosts Llama 3.3 70B and other popular open-weight models. Their catalog is focused on the most widely-used models rather than breadth.

How does Lepton AI pricing compare to competitors?

Lepton AI offers competitive pricing on Llama 3.3 70B, comparable to Together AI and Fireworks AI. Check their pricing page for current rates.

Is Lepton AI good for production workloads?

Lepton AI is suitable for production workloads with auto-scaling and serverless infrastructure. For very high-volume or latency-critical production use cases, Groq or Cerebras may offer better performance.

Provider resources

Deep InfraThe cheapest inference API for open-weight models — Llama, Mistral, and more

Deep Infra is an inference-focused API provider specialising in open-weight models at extremely competitive prices. Consistently among the cheapest providers for Llama 3, Mistral, and DeepSeek models, making it the go-to choice for cost-sensitive production inference.

The most price-competitive inference API for open-weight models — often 30–50% cheaper than comparable providers for the same Llama or Mistral model.

Lepton AIServerless LLM inference with a developer-first API

Lepton AI offers serverless inference for popular open-weight models with a clean developer experience. Their platform supports Llama 3.3 and other leading open-source models with competitive per-token pricing and low-latency endpoints. A good choice for developers who want simple, scalable inference without infrastructure management.

The simplest serverless inference API for open-weight models — minimal setup, auto-scaling, and a clean developer experience.

Key strengths compared

Deep Infra

  • Consistently lowest prices for open-weight models
  • Wide model catalog including Llama, Mistral, DeepSeek
  • OpenAI-compatible API

Lepton AI

  • Clean developer experience with minimal setup
  • Serverless — no infrastructure management
  • Competitive pricing on Llama 3.3 models

Provider category context

Deep Infra is a inference api, founded in 2023. Lepton AI is a inference api, founded in 2023. Both are inference api providers — the comparison is primarily about pricing, model selection, and feature differentiation within the same tier.

How to choose between them

Both Deep Infra and Lepton AI host open-weight models. The key differentiators are latency, throughput, and which specific model versions each provider offers. Check the speed metrics above — inference API providers often differ significantly on tokens-per-second for the same model. Pricing is typically competitive between them; availability of specific model versions (e.g., Llama 3.1 405B, DeepSeek V3) may be the deciding factor.