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o3 API Pricing & Quick Start

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

Intelligence#186 / 638
20
Artificial Analysis Intelligence Index
Speed#125 / 329
107.0
Output tokens per second (median)
Input Price#338 / 437
$2.00NT$ 63
USD / 1M tokens
Output Price#328 / 437
$8.00NT$ 253
USD / 1M tokens
First-token latency#248 / 329
5.69s
Time to first token (AA median)
ProviderOpenAI
ReleasedApril 2025
Model IDopenai/o3

Technical specifications

Context window
200K tokens
Reasoning
Yes
Input
ImageTextFile
Output
Text

Pricing comparison

BazaarLink retail price alongside AA's observed market standard.

BazaarLink price our site

Input$2.00NT$ 63
Output$8.00NT$ 253
Cache read$0.50NT$ 16
Cache write
3:1 blended (est.)$3.50NT$ 110
All prices per 1M tokens. Supports TWD credit card / official invoice.

Market reference Artificial Analysis

Input$2.00
Output$8.00
Cache readAA not tracked
Cache writeAA not tracked
3:1 blended$3.50
✓ 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 20
Coding
Math 88
MMLU 85
GPQA 83
This modelCategory leader
Overall intelligence
#186out of 638 models
Aggregated across academic benchmarks
Time to first token
#248out of 329 models
AA 全球 p50:5.69 秒
Intelligence
20
Top 29%
This model
20
Category leader
53
Median
12
Math
88
This model
88
Category leader
99
Median
53
MMLU Pro
85%
This model
85%
Category leader
90%
Median
75%
GPQA
83%
This model
83%
Category leader
94%
Median
69%
LiveCodeBench
81%
This model
81%
Category leader
42%
Median
42%
HLE
20%
This model
20%
Category leader
53%
Median
7%
SciCode
41%
This model
41%
Category leader
60%
Median
34%
IFBench
71%
This model
71%
Category leader
83%
Median
44%
τ²-Bench Telecom
81%
This model
81%
Category leader
99%
Median
46%
AA-LCR
69%
This model
69%
Category leader
76%
Median
40%
Terminal-Bench Hard
37%
This model
37%
Category leader
66%
Median
14%

Top 5 — CodingCoding Index leaderboard

2Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)?/claude-fable-5-1-xhigh81$10 / $50
3Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback)?/claude-fable-5-1-high79$10 / $50
4GPT-5.6 Sol (xhigh)openai/gpt-5-6-sol-xhigh78$4 / $20
AASource: Artificial Analysis · Independent third-party evaluation; not influenced by BazaarLinkView full evaluation on AA →

Quick Start

Use o3 via BazaarLink API — just change the base_url:

Python
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/o3",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)
TypeScript
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/o3",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use o3 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 o3?

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

How much does the o3 API cost?

o3 costs $2.00 per 1M input tokens and $8.00 per 1M output tokens when accessed through BazaarLink.

How do I use o3 with the OpenAI SDK?

Set base_url to "https://api.bazaarlink.ai/v1" and use model ID "openai/o3". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for o3?

o3 supports a context window of 200,000 tokens.

Is o3 available for free?

o3 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

Relay integrity checks

No integrity-check data is available for this model yet.

BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.

View the full integrity report →

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