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Deep Infra vs OpenRouter: Token Pricing, Speed & Intelligence

Full comparison of Deep Infra and OpenRouter — 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

OpenRouter

One API for every major LLM — route to the cheapest or fastest provider automatically

OpenRouter is a unified LLM API that routes requests to the cheapest or fastest available provider for any given model. With a single API key you can access GPT-4o, Claude, Llama, Gemini, and hundreds of other models, with automatic fallback and cost optimisation.

Multi-model applicationsCost optimisationProvider fallbackPrototypingModel comparison
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

OpenRouter

Single API for 200+ models across all major providers
Automatic routing to cheapest or fastest provider
Fallback and load balancing built in
OpenAI-compatible API
Free tier with rate-limited access to many models
Adds a small latency overhead vs direct provider APIs
Pricing is slightly above direct provider rates (routing fee)
Less control over which specific provider handles your request

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.

OpenRouter

The only API that lets you access every major LLM with a single key and automatically routes to the cheapest or fastest available provider.

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.

OpenRouter FAQs

How does OpenRouter pricing work?

OpenRouter charges the underlying provider rate plus a small routing fee (typically a few percent). For many models, the effective price is very close to or equal to the direct provider rate. Some models are available for free with rate limits.

What models are available on OpenRouter?

OpenRouter provides access to 200+ models including GPT-4o, Claude 3.5 Sonnet, Llama 3.3 70B, Gemini 1.5 Pro, DeepSeek R1, Mistral, and many others. The catalog is updated as new models are released.

Can I use OpenRouter with the OpenAI SDK?

Yes. OpenRouter is fully OpenAI-compatible. Point the OpenAI SDK at the OpenRouter endpoint and use your OpenRouter API key — no other code changes needed.

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.

OpenRouterOne API for every major LLM — route to the cheapest or fastest provider automatically

OpenRouter is a unified LLM API that routes requests to the cheapest or fastest available provider for any given model. With a single API key you can access GPT-4o, Claude, Llama, Gemini, and hundreds of other models, with automatic fallback and cost optimisation.

The only API that lets you access every major LLM with a single key and automatically routes to the cheapest or fastest available provider.

Key strengths compared

Deep Infra

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

OpenRouter

  • Single API for 200+ models across all major providers
  • Automatic routing to cheapest or fastest provider
  • Fallback and load balancing built in

Provider category context

Deep Infra is a inference api, founded in 2023. OpenRouter 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 OpenRouter 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.