Lepton AI vs Together AI: Token Pricing, Speed & Intelligence
Full comparison of Lepton AI and Together AI — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Updated July 2026.
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.
Together AI
Open-source model hosting with competitive inference pricing
Together AI specialises in hosting open-weight models including the full Llama family, Mixtral, and DeepSeek variants. They offer live pricing via their public API and support fine-tuning workflows. A popular choice for teams that want open-source flexibility without managing their own GPU infrastructure.
Key metrics
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Live token pricing
Strengths & weaknesses
Lepton AI
Together AI
Key differentiators
The simplest serverless inference API for open-weight models — minimal setup, auto-scaling, and a clean developer experience.
The broadest open-weight model catalog with fine-tuning support — ideal for teams that need model customisation without self-hosting.
Frequently asked questions
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.
Together AI FAQs
What models does Together AI support?
Together AI hosts 100+ open-weight models including the full Llama 3.x family (8B, 70B, 405B), Mixtral, DeepSeek R1, Qwen, and many others. They also support custom fine-tuned model deployment.
How much does Together AI cost?
Llama 3.3 70B costs $0.88/1M tokens (input and output). Llama 3.1 405B is $3.50/1M tokens. Smaller models like Llama 3.2 11B Vision start at $0.18/1M tokens.
Does Together AI support fine-tuning?
Yes. Together AI offers supervised fine-tuning for Llama and other open-weight models. You can upload training data, run fine-tuning jobs, and deploy the resulting model via their inference API.
Provider resources
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.
The simplest serverless inference API for open-weight models — minimal setup, auto-scaling, and a clean developer experience.
Together AI — Open-source model hosting with competitive inference pricing
Together AI specialises in hosting open-weight models including the full Llama family, Mixtral, and DeepSeek variants. They offer live pricing via their public API and support fine-tuning workflows. A popular choice for teams that want open-source flexibility without managing their own GPU infrastructure.
The broadest open-weight model catalog with fine-tuning support — ideal for teams that need model customisation without self-hosting.
Key strengths compared
Lepton AI
- ▸Clean developer experience with minimal setup
- ▸Serverless — no infrastructure management
- ▸Competitive pricing on Llama 3.3 models
Together AI
- ▸Largest selection of open-weight models
- ▸Fine-tuning support for custom model training
- ▸OpenAI-compatible API — easy migration
Provider category context
Lepton AI is a inference api, founded in 2023. Together AI is a inference api, founded in 2022. 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 Lepton AI and Together 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.