🚀 One API for every frontier model on FastInfra

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Transparent per-token pricing → compare providers on FastInfra

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OpenAI-compatible chat completions → start in minutes

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⚡ Server Auction → Enterprise bare metal from $78.15/mo (173 in stock)

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FastInfra Solutions

A Fireworks AI alternative with infrastructure included.

FastInfra combines multi-provider inference behind one OpenAI-compatible API with optional GPU and bare-metal products for teams that outgrow serverless-only hosting.

Why FastInfra

  • Drop-in OpenAI chat completions and streaming
  • Live input/output prices on every model page
  • Automatic failover between upstream routes
  • GPU Cloud for custom models and fine-tuning workloads
  • Dedicated bare-metal for long-running training

FastInfra vs Fireworks AI at a glance

Fireworks AI focuses on fast serverless inference for open models. FastInfra offers serverless, pay-per-token access to open and frontier models through one OpenAI-compatible API with automatic routing across upstream providers, and adds GPU pods and bare-metal servers for teams that outgrow serverless-only hosting.

Feature comparison
CapabilityFastInfra
OpenAI-compatible chat completions and streamingYes
Frontier models (Claude, GPT, Gemini) on the same keyYes
Open-weight modelsYes — part of 714 models
Routing failover between upstreamsYes
GPU pods for custom weightsYes — per-minute billing
Dedicated bare metalYes — monthly, plus auction stock

Live prices for popular models

Popular LLMs on FastInfra with live input and output prices (USD per 1M tokens)
ModelInput $/1MOutput $/1MRoutes
Claude Opus 5
anthropic/claude-opus-5
$5.4$271
Claude Sonnet 5
anthropic/claude-sonnet-5
$2.16$10.81
Claude Haiku 5.5
anthropic/claude-haiku-5.5
$0.108$0.541
Claude Fable 5.1
anthropic/claude-fable-5.1
$10.8$541
GPT-5.5
openai/gpt-5.5
$5.4$32.41
GPT-6 Sol
openai/gpt-6-sol
$2.16$10.81
GPT-OSS 120B
gpt-oss-120b
$0.162$0.6485
Gemini 3.8 Flash
google/gemini-3.8-flash
$0.81$4.051
DeepSeek V4 Pro
deepseek/deepseek-v4-pro
$1.728$3.4562
DeepSeek V4 Flash
deepseek/deepseek-v4-flash
$0.0983$0.19662
Qwen3.6 27B
qwen/qwen3.6-27b
$0.486$2.9162
Kimi K3
moonshotai/kimi-k3
$0.2074$16.23
Grok 4.7
x-ai/grok-4.7
$2.16$6.481
GLM 5.3
glm-5.3
$0.0864$3.8884
Llama 4 Maverick
meta-llama/llama-4-maverick
$0.2025$0.70471

Migrate in five minutes

from openai import OpenAI

client = OpenAI(base_url="https://api.fastinfra.ai/v1", api_key="YOUR_FASTINFRA_KEY")

resp = client.chat.completions.create(
    model="deepseek/deepseek-v4-flash",
    messages=[{"role": "user", "content": "Summarise this ticket in one line."}],
)
print(resp.choices[0].message.content)

When a GPU pod beats serverless

Serverless tokens are ideal for spiky production traffic. A rented GPU wins when a single model runs near full utilisation all day, when you serve custom or fine-tuned weights, or when you need a specific runtime configuration. Both run on the same FastInfra account.

Frequently asked questions

Is FastInfra a drop-in for Fireworks?

For chat and embeddings, point the OpenAI SDK at FastInfra's base URL and use your FastInfra API key. Video and speech SKUs use the documented async endpoints.

Why add GPU Cloud?

Serverless tokens are ideal for production traffic; GPU pods give you a full machine when you need custom weights or batch jobs.

Where are prices listed?

On /pricing and on every /models/{slug} page, synced from upstream providers.

Is FastInfra as fast as Fireworks?

Latency depends on the model and upstream route. FastInfra routes to healthy upstreams and fails over automatically; test your own prompts and compare time-to-first-token before switching.

Do embeddings work too?

Yes. Embedding models use the OpenAI embeddings format on the same base URL and key.

Can I use JSON mode and tool calling?

Yes, on models that support them, using the standard OpenAI response_format and tools parameters.