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Buy GPT-4.1 API

Name: GPT-4.1 API
Brand: OpenAI
Price: 2.00 USD
Availability: InStock
Rating: 4.3 (44 reviews)

Cheapest GPT-4.1 API pricing. Instant API key activation. Pay with USDT/USDC — no credit card required. OpenAI-compatible endpoint.

TL;DR

Price: $2.00/1M input · $8.00/1M output

Context: 1M · max 32,768 output

Cost advantage: Up to 70% cheaper than official API

Access: OpenAI-compatible · No credit card · Instant API key

Save up to 70% on GPT-4.1 API cost

Same model, same quality — pay less per token than the official API. Pay-as-you-go, no credit card required.

$2.00/1M

input token price

💰 Cheapest Pricing⚡ Instant API Key🚫 No Credit Card💎 USDT & USDC🔌 OpenAI-Compatible

🎁 Free Trial Available · ⚡ Instant API Access · 🚫 No Credit Card Required

Try GPT-4.1 API Instantly (No Credit Card Required)

Get started in 30 seconds — free test tokens, no payment upfront. Pay only when ready.

Create account

Get free test tokens

Free trial tokens credited instantly.

Call API instantly

OpenAI-compatible endpoint.

Python — try GPT-4.1 free in 30 secondsmodel: "gpt-4.1"

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.apiyihe.org/v1"
)

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

Try GPT-4.1 with free test tokens →

No credit card · Free trial tokens · Instant activation

INPUT / 1M tokens

$2.00

OUTPUT / 1M tokens

$8.00

CONTEXT WINDOW

Benchmark Evidence: GPT-4.1 vs Gemini 3.1 Pro

Side-by-side evidence to support your decision. Pricing and specs are factual; benchmark scores reflect official provider publications where available.

Metric	GPT-4.1	Gemini 3.1 Pro
Input price (1M)	$2.00	$2.00
Output price (1M)	$8.00	$12.00
Context window	1M	1M
Function calling	✅ Yes	❌ No
Vision	✅ Yes	✅ Yes
Est. P95 latency	300–500ms*	300–500ms*

* Estimated P95 latency derived from model price tier — smaller/cheaper models typically respond faster. Benchmark scores marked N/A are not publicly disclosed by the provider.

Best For — Use Case Proof

Best for long-context summarization

1M context window

Best for AI agents & tool use

Function/tool calling supported

Best for multimodal apps

Vision / image input supported

Real API Behavior

Streaming support	✅ Supported (SSE)
Function calling	✅ Supported
JSON mode	✅ Supported
Error rate (typical)	< 0.1% — stable production tier
Timeout handling	OpenAI-compatible: max_tokens cap + client-side retry/backoff
Rate limits	10K RPM

All capabilities accessed through the OpenAI-compatible endpoint https://api.apiyihe.org/v1. Error rates reflect production stability of active models.

Why Buy GPT-4.1 API from AI API Hub?

Cheapest Pricing

GPT-4.1 from $2.00/1M input — up to 70% cheaper than official OpenAI pricing. Pay-as-you-go, no minimum.

Instant API Key

Your API key activates immediately after registration and deposit. No approval, no waiting — start building in 30 seconds.

No Credit Card Required

Pay with USDT or USDC (TRC-20/ERC-20). No KYC for crypto payments. Privacy-focused, crypto-native billing.

OpenAI-Compatible

Drop-in replacement for OpenAI. Use GPT-4.1 by changing only the model name — your existing SDK code works as-is.

Cost & Savings Calculator

Monthly Requests

Avg Input Tokens

Avg Output Tokens

Monthly cost

$6.00

Annual cost

$72.00

Save vs GPT-4o

$1.50/mo

20% cheaper

Pay-as-you-go token billing. No subscription. No credit card needed — pay with USDT/USDC.

Quick Start — Buy & Use GPT-4.1 API

Python — get instant API key & call GPT-4.1

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.apiyihe.org/v1"
)

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

Buying GPT-4.1 API — FAQ

How do I buy GPT-4.1 API?

Buy GPT-4.1 API in 3 steps: (1) Register at AI API Hub, (2) Deposit USDT or USDC — no credit card required, (3) Get your instant API key. Use the OpenAI-compatible endpoint https://api.apiyihe.org/v1 with model name "gpt-4.1". Start calling the API in under 30 seconds.

What is the cheapest GPT-4.1 API?

The cheapest GPT-4.1 API is available at AI API Hub for $2.00/1M input and $8.00/1M output. Pay-as-you-go with no minimum commitment. Save up to 70% versus official pricing with USDT/USDC crypto payments.

Can I buy GPT-4.1 API without a credit card?

Yes. Buy GPT-4.1 API with USDT or USDC — no credit card required and no KYC for crypto payments. Your API key is activated instantly after deposit confirmation.

How fast do I get my GPT-4.1 API key?

Instant. After registering and depositing USDT/USDC, your GPT-4.1 API key is activated immediately. You can start making API calls in under 30 seconds — no waiting period, no approval step.

What is GPT-4.1 API pricing?

GPT-4.1 pricing: $2.00 per 1M input tokens, $8.00 per 1M output tokens. Token-based pay-as-you-go billing. No subscription fees, no hidden costs. Volume use gets cheaper per-token rates automatically.

Is the GPT-4.1 API OpenAI-compatible?

Yes. AI API Hub uses a fully OpenAI-compatible API format. Switch to GPT-4.1 by changing only the model name parameter — your existing OpenAI SDK code (Python, Node.js, cURL) works without any other modification.