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Grok 4.1 Fast API

Access Grok 4.1 Fast through a simple, OpenAI-compatible API. Change one URL and one key — your existing code works immediately. No SDK changes needed.

Grok 4.1 Fast Pricing

Token TypeQubaxRetailSave
Input (per 1M)$0.163$0.125—
Output (per 1M)$0.406$0.313-30%

At $0.163/1M input tokens, Grok 4.1 Fast is one of the most affordable APIs in its class.

Why use Grok 4.1 Fast API on Qubax?

  • ⚡Point your OpenAI SDK at https://api.qubax.ai/v1
  • ⚡Use model ID: grok-4.1-fast
  • ⚡Generate API keys starting with qbx_live_
  • ⚡Full streaming, function calling, and vision support

About Grok 4.1 Fast

Grok 4.1 Fast is a text generation model available on Qubax. It supports a 1M-token context window and up to 30K output tokens per request. Native capabilities include reasoning, vision, tool calling, structured output, streaming. On Qubax it is served by 20 independent sellers, so pricing stays competitive and uptime stays high.

1M context window30K max output tokensReasoning with selectable effort levels (default)Vision / image inputFunction & tool callingJSON schema responsesToken streaming

Grok 4.1 Fast API Access — code example

Python — OpenAI SDK, one-line switchpython
from openai import OpenAI

# Only two lines change vs the official API:
client = OpenAI(
    base_url="https://api.qubax.ai/v1",
    api_key="qbx_live_YOUR_KEY",
)

response = client.chat.completions.create(
    model="grok-4.1-fast",
    messages=[{"role": "user", "content": "Hello, Grok 4.1 Fast!"}],
)
print(response.choices[0].message.content)

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Get started in 60 seconds

  1. 1Create a free account at qubax.ai/register
  2. 2Add crypto credits (200+ coins, $3 minimum, credits never expire)
  3. 3Generate an API key and set your base URL to https://api.qubax.ai/v1
  4. 4Use model ID grok-4.1-fast — done!

Grok 4.1 Fast API Access FAQ

How much does Grok 4.1 Fast cost API?

On Qubax, Grok 4.1 Fast costs $0.163 per 1M input tokens and $0.406 per 1M output tokens. Pay with 200+ cryptocurrencies.

Can I use Grok 4.1 Fast with my existing tools?

Yes. Qubax is fully OpenAI-compatible. Change your base URL to api.qubax.ai/v1 and use your Qubax key. Works with Cline, Cursor, OpenCode, LangChain, and any OpenAI SDK.

Do I need a credit card?

No. Qubax accepts 200+ cryptocurrencies. No credit card, no KYC.

Start using Grok 4.1 Fast API

No credit card. Crypto accepted. Credits never expire.

Get started →
Also available for:💻 Coding💬 Chatbots🤖 AI Agent🪙 Crypto Payments
Grok 4.1 Fast API · Qubax AI