GPT 5 API Pricing & Quick Start
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.
Technical specifications
Pricing comparison
BazaarLink retail price alongside AA's observed market standard.
BazaarLink price our site
Market reference Artificial Analysis
Independent benchmarks
Scores below come from Artificial Analysis, an independent third party. BazaarLink does not participate in the testing.
Top 5 — CodingCoding Index leaderboard
?/claude-fable-5-1-xhigh81$10 / $50?/claude-fable-5-1-high79$10 / $50openai/gpt-5-6-sol-xhigh78$4 / $20Quick Start
Use GPT 5 via BazaarLink API — just change the base_url:
from openai import OpenAI
client = OpenAI(
base_url="https://api.bazaarlink.ai/v1",
api_key="sk-bl-YOUR_API_KEY",
)
response = client.chat.completions.create(
model="openai/gpt-5",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.bazaarlink.ai/v1",
apiKey: "sk-bl-YOUR_API_KEY",
});
const response = await client.chat.completions.create({
model: "openai/gpt-5",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);Why use GPT 5 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
Frequently Asked Questions
What is GPT 5?
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.
How much does the GPT 5 API cost?
GPT 5 costs $1.25 per 1M input tokens and $10.00 per 1M output tokens when accessed through BazaarLink.
How do I use GPT 5 with the OpenAI SDK?
Set base_url to "https://api.bazaarlink.ai/v1" and use model ID "openai/gpt-5". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.
What is the context window for GPT 5?
GPT 5 supports a context window of 400,000 tokens.
Is GPT 5 available for free?
GPT 5 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.
Relay integrity checks
- Tested endpoints
- 4 runs
- Independent hosts
- 4
- Model-family fingerprint match
- 75%
- Anomalies detected
- 3 runs
- Data range
- past 90 days
BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.
View the full integrity report →Related models and links
More from this provider: OpenAI