The AI inference platform for every model.
One OpenAI-compatible API for 714+ models, plus GPU pods billed by the minute.
# Drop-in OpenAI SDK
from openai import OpenAI
client = OpenAI(api_key="FASTINFRA_API_KEY", base_url="https://api.fastinfra.ai/v1")
r = client.chat.completions.create(
model="openai/gpt-oss-20b",
messages=[{"role": "user", "content": "Hello"}],
)
print(r.choices[0].message.content)Video by MrColo on Pexels
What is FastInfra?
FastInfra is an AI inference platform that puts 785+ language, vision, video and speech models behind one OpenAI-compatible API, with automatic lowest-cost routing and transparent per-token prices. The same account rents GPU pods billed by the minute, Linux CPU servers and dedicated bare-metal machines, so a team can prototype on the free tier, scale on the API and move heavy workloads onto its own hardware without changing vendors.
One OpenAI-compatible API for every frontier model
Stop juggling provider accounts, SDKs, and pricing spreadsheets. FastInfra gives your team one production API for serverless models and dedicated GPU pods — hundreds of frontier models plus bare-metal compute when you need it.
One integration, every model
Swap models with a single parameter. GPT, Claude, Llama, Gemini, DeepSeek — all through the same OpenAI-compatible endpoint your team already uses.
Intelligent cost routing
Our routing layer automatically selects the lowest-cost upstream path per model, so you ship faster without leaving margin on the table.
Enterprise from day one
Rate limits, API keys, usage tracking, and transparent per-token pricing — everything you need to move from prototype to production.
On-demand GPU pods
Deploy RTX 4090, A100, H100, H200 and more with any Docker image. Per-minute billing from prepaid credits — stop the pod and the meter stops.
Get started in three steps
From signup to first production request in minutes, not weeks.
Create your account
Sign up free and generate an API key from your dashboard. No credit card required to start building.
Point your SDK at FastInfra
Use any OpenAI-compatible client. Change the base URL and API key — your existing code keeps working.
Ship to production
Route across 714+ models with automatic failover, streaming, and pay-per-token billing — or spin up a GPU pod for training, fine-tuning, and custom stacks.
GPU cloud pods billed per minute
Rent GPU pods for training, fine-tuning, vLLM, ComfyUI or Jupyter. Choose from 47+ GPU tiers, from RTX 4090 to H200, deploy any Docker image in seconds, and pay per minute from prepaid credits with no contract. See our GPU cloud hosting guide.
Any Docker image
Bring your own stack — custom env vars, exposed ports, and persistent volumes when you need them.
RTX 4090 to H200
Secure and value tiers across consumer and datacenter GPUs. Scale from a single GPU up to multi-GPU pods.
Stop = stop billing
Prepaid wallet billing by the minute while a pod runs. Stop or terminate anytime — no surprise invoices.
Same account, one wallet
API inference and GPU pods share your FastInfra balance. One dashboard for keys, usage, and pod management.
Dedicated bare-metal servers from $102.85/month
Premium dedicated servers at auction pricing — Intel, AMD, and ARM configurations ready to deploy. See the dedicated server hosting guide.
- Instant provisioning on available stock
- Transparent monthly pricing — no hidden fees
- Same wallet as API & GPU Cloud
Inventory refreshes continuously. Secure your configuration before it's claimed.
View deals →Featured models with live API pricing
Frontier and popular models with per-token prices. Browse the full model catalog, pricing table, or OpenRouter alternative guide.
Enterprise AI inference: SLAs, data controls and support
FastInfra is built for teams shipping AI at the highest level — from fast-growing startups to global enterprises demanding performance, control, and clarity.
- OpenAI-compatible API with streaming and tool calling
- On-demand GPU pods — RTX 4090, A100, H100, H200 and more
- Automatic multi-provider routing for cost and reliability
- Per-key rate limits and usage visibility
- Transparent pay-per-token and per-minute GPU pricing
- Dedicated support and custom SLAs for enterprise plans
Ready for your next launch? Join teams building the next generation of AI products on FastInfra. Start free with API credits — scale to millions of requests and dedicated GPUs from one platform.
Get your API keyFrequently asked questions
What is FastInfra?
FastInfra is an AI inference platform. It exposes hundreds of models through one OpenAI-compatible API with automatic lowest-cost routing, and it rents GPU pods, CPU virtual servers and dedicated bare-metal servers from the same account.
What is an AI inference platform?
An AI inference platform runs trained models on demand: you send prompts or media through an API and receive completions, embeddings or generations. FastInfra adds multi-provider routing, a unified model catalog and optional GPU, CPU and bare-metal compute on one account.
What is an OpenAI-compatible API?
An OpenAI-compatible API accepts the same REST paths and JSON bodies as the OpenAI API, so official SDKs work when you change base_url and the API key. FastInfra supports chat completions, streaming, tools, embeddings, video, speech and model listing on one key.
Is FastInfra compatible with the OpenAI SDK?
Yes. Keep the official OpenAI SDK, change base_url to the FastInfra API host and use a FastInfra API key. Chat completions, streaming, tool calling, embeddings and model listing use the same request and response shapes.
How does FastInfra compare with OpenRouter?
Both offer one OpenAI-compatible key for many models. FastInfra adds per-minute GPU and CPU rental, dedicated bare-metal servers, and automatic lowest-cost routing on the same prepaid wallet — not only serverless tokens.
Does FastInfra store or train on my prompts?
API content is processed to fulfil your request and routed to upstream providers where applicable. FastInfra does not use your API prompts to train its own models. Retention for logs and support is described in the privacy policy.
Where are FastInfra's servers located?
Inference routes to upstream providers and self-hosted backends in multiple regions. GPU pods, CPU VMs and dedicated servers are provisioned in the datacenters shown in each product configurator before you deploy.
Does FastInfra have a free tier?
Yes. A set of chat models is available at $0 per token with published rate limits. Paid models bill per token from prepaid credits with no subscription or monthly minimum.
How is GPU cloud billed on FastInfra?
GPU pods bill per minute while they exist, with hourly and monthly estimates shown in the public configurator before you deploy. Attached volumes bill per GB-month, including while a pod is stopped.
Which infrastructure products does FastInfra offer?
Four: the inference API (pay per token), GPU Cloud (RTX 4090 to H200 pods by the minute), CPU Cloud (Linux virtual servers by the minute) and Dedicated Servers (bare-metal EX, AX, RX, SX and GPU lines plus auction stock).
Reviewed by Ashish Kumar, Head of Product · Updated October 26, 2026. Prices and counts on this page come from the live catalog.
Start building on FastInfra today
One API. 714+ models. 47+ GPU tiers. Zero lock-in. Start building on FastInfra today — serverless inference and dedicated GPUs, same wallet.