How much does GPT 4 cost?

GPT 4 costs $30.00 per 1M input tokens and $60.00 per 1M output tokens on BazaarLink. No markup over provider pricing.

What is GPT 4's context window?

GPT 4 supports a 8K token (8,191) context window.

Does GPT 4 support tool calling / function calling?

Yes, GPT 4 supports tool calling (function calling) via the standard OpenAI tools parameter. BazaarLink passes tool definitions through transparently.

Can I send images to GPT 4?

GPT 4 is a text-only model. For image input, use a multimodal model like a vision-capable variant.

Is GPT 4 free on BazaarLink?

GPT 4 is a paid model. BazaarLink offers a free tier on other models — see /free for the current free-tier model list.

GPT 4 is provided by OpenAI. BazaarLink routes requests to OpenAI's production inference infrastructure without modification to the request or response format.

How does GPT 4 compare to other models?

See /models for a side-by-side table of all major models BazaarLink supports, filterable by price, context length, and capabilities.

Can I use GPT 4 with LangChain or Vercel AI SDK?

Yes. Both LangChain (via ChatOpenAI with base_url) and Vercel AI SDK (via @ai-sdk/openai with baseURL) work out of the box — just use "openai/gpt-4" as the model identifier.

GPT 4

Name: GPT 4 API
Brand: OpenAI

OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...

Intelligence#428 / 563

Artificial Analysis Intelligence Index

Speed#306 / 576

33.9

Output tokens per second (median)

Input Price#574 / 576

$30.00NT$ 970

USD / 1M tokens

Output Price#566 / 576

$60.00NT$ 1941

USD / 1M tokens

First-token latency#397 / 576

0.99s

Time to first token (AA median)

Provider	OpenAI
Released	2023年5月
Model ID	`openai/gpt-4`

Technical specifications

Context window

8K tokens

Reasoning

Input

Text

Output

Text

Pricing comparison

BazaarLink retail price alongside AA's observed market standard.

BazaarLink price our site

Input$30.00NT$ 970

Output$60.00NT$ 1941

Cache read—

Cache write—

3:1 blended (est.)$37.50NT$ 1213

All prices per 1M tokens. Supports TWD credit card / official invoice.

Market reference Artificial Analysis

Input$30.00

Output$60.00

Cache readAA not tracked

Cache writeAA not tracked

3:1 blended$37.50

✓ Matches market reference — BazaarLink does not mark up.
Source: artificialanalysis.ai

Independent benchmarks

Scores below come from Artificial Analysis, an independent third party. BazaarLink does not participate in the testing.

Intelligence 7

Coding 13

Math

MMLU

GPQA

This modelCategory leader

Coding ability

#147out of 176 models

LiveCodeBench / SciCode and similar

Overall intelligence

#428out of 563 models

Aggregated across academic benchmarks

Time to first token

#397out of 576 models

AA 全球 p50：0.99 秒

Intelligence

Mid-tier

This model

Category leader

Median

Coding

Mid-tier

This model

Category leader

Median

Top 5 — CodingCoding Index leaderboard

1GPT-5.6 Sol (xhigh)openai/gpt-5-6-sol-xhigh78$5 / $30

2GPT-5.6 Sol (max)openai/gpt-5-6-sol77$5 / $30

3GPT-5.6 Sol (high)openai/gpt-5-6-sol-high77$5 / $30

4GPT-5.6 Terra (max)openai/gpt-5-6-terra77$2.5 / $15

5Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)anthropic/claude-fable-577$10 / $50

AASource: Artificial Analysis · Independent third-party evaluation; not influenced by BazaarLinkView full evaluation on AA →

Quick Start

Use GPT 4 via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://bazaarlink.ai/api/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="openai/gpt-4",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://bazaarlink.ai/api/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "openai/gpt-4",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use GPT 4 via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

Try Now ← All Models

Frequently Asked Questions

What is GPT 4?

How much does the GPT 4 API cost?

GPT 4 costs $30.0000 per 1K input tokens and $60.0000 per 1K output tokens when accessed through BazaarLink.

How do I use GPT 4 with the OpenAI SDK?

Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "openai/gpt-4". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for GPT 4?

GPT 4 supports a context window of 8,191 tokens.

Is GPT 4 available for free?

GPT 4 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

中轉站誠信檢測 · BazaarLink 獨家

已測試 endpoint: 9 次
獨立 hosts: 7
家族指紋一致率: 78%
偵測到異常: 6 次
資料範圍: 過去 90 天

BazaarLink Probe 對聲稱提供此模型的 endpoint 進行家族指紋驗證與 V3 子模型對照。如發現行為與真貨基準不符，會列入異常案例。

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