Grok 4.1 Fast API AI Agent
Build autonomous AI agents with Grok 4.1 Fast. Supports function calling, tool use, and multi-step reasoning โ perfect for agentic workflows that need to make decisions and take actions.
Grok 4.1 Fast Pricing
| Token Type | Qubax | Retail | Save |
|---|---|---|---|
| Input (per 1M) | $0.163 | $0.125 | โ |
| Output (per 1M) | $0.406 | $0.313 | -30% |
An AI agent workload (50K input + 5K output tokens, 100 tasks/day) costs approximately $30.47/month on Qubax.
Why use Grok 4.1 Fast for AI agents on Qubax?
- ๐คAutonomous agents that call APIs and external tools
- ๐คMulti-step reasoning for complex task completion
- ๐คAgent orchestration with LangChain, CrewAI, or custom frameworks
- ๐คFunction calling for structured, reliable agent responses
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.
Grok 4.1 Fast AI Agent โ code example
from openai import OpenAI
import json
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="qbx_live_YOUR_KEY",
)
tools = [{
"type": "function",
"function": {
"name": "get_weather",
"parameters": {"type": "object", "properties": {"city": {"type": "string"}}},
},
}]
resp = client.chat.completions.create(
model="grok-4.1-fast",
messages=[{"role": "user", "content": "What's the weather in Tokyo?"}],
tools=tools,
)
call = resp.choices[0].message.tool_calls[0]
print(json.loads(call.function.arguments)) # -> {"city": "Tokyo"}More xAI models on Qubax
Get started in 60 seconds
- 1Create a free account at qubax.ai/register
- 2Add crypto credits (200+ coins, $3 minimum, credits never expire)
- 3Generate an API key and set your base URL to
https://api.qubax.ai/v1 - 4Use model ID
grok-4.1-fastโ done!
Grok 4.1 Fast AI Agent FAQ
How much does Grok 4.1 Fast cost for AI agents?
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 for AI agents
No credit card. Crypto accepted. Credits never expire.
Get started โ