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cf.flux-2-klein-4b API on AvalAI

cf.flux-2-klein-4b

cf.flux-2-klein-4b is an AI model from Bfl that is available through AvalAI's OpenAI-compatible API.

Open dashboardCompare

Price display scale

Input price—

Output price—

Context window— tokens

Maximum output— tokens

Use cf.flux-2-klein-4b with the AvalAI API

Keep the API key in an environment variable and send requests from server-side code.

Bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{"model": "cf.flux-2-klein-4b", "messages": [{"role": "user", "content": "Give a concise, practical solution."}]}'

Python

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AVALAI_API_KEY"],
    base_url="https://api.avalai.ir/v1",
)

response = client.chat.completions.create(
    model="cf.flux-2-klein-4b",
    messages=[{"role": "user", "content": "Give a concise, practical solution."}],
)

print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.AVALAI_API_KEY,
  baseURL: "https://api.avalai.ir/v1",
});

const response = await client.chat.completions.create({
  model: "cf.flux-2-klein-4b",
  messages: [{ role: "user", content: "Give a concise, practical solution." }],
});

console.log(response.choices[0].message.content);

Create an API keyRead the quickstart

Capabilities and endpoints

• —

Endpoints

• /v1/images/generations

cf.flux-2-klein-4b rate limits

Tier	RPM	TPM
Tier 1	10	—
Tier 2	25	—
Tier 3	50	—
Tier 4	150	—
Tier 5	500	—

Related models

• cf.flux-2-klein-9b
• cf.flux-2-dev
• cf.phoenix-1.0
• cf.lucid-origin

Frequently asked questions

What is the cf.flux-2-klein-4b API on AvalAI?

Create an AvalAI API key and send the model ID cf.flux-2-klein-4b to one of the supported endpoints shown on this page.

How much does the cf.flux-2-klein-4b API cost on AvalAI?

The cf.flux-2-klein-4b API on AvalAI costs — per 1M input tokens and — per 1M output tokens.

What is the token cost for cf.flux-2-klein-4b?

Current AvalAI pricing for cf.flux-2-klein-4b is — for input and — for output.

What is the cf.flux-2-klein-4b context window?

The recorded maximum input context for cf.flux-2-klein-4b is — tokens.

What account tier is required to use cf.flux-2-klein-4b on AvalAI?

Calling cf.flux-2-klein-4b on AvalAI requires tier 1 or higher.

Third-party data and freshness

• Pricing, availability, endpoints, and rate limits: AvalAI structured data (authoritative)