GPT 5.3 Codex

VisionReasoningTool use

OpenAI's GPT-5.3-Codex is the most capable agentic coding model, combining frontier coding performance with reasoning capabilities. Features mid-task steering and 25% faster inference than GPT-5.2-Codex.

Model id — paste this in your code

openai/gpt-5.3-codex

Pricing · per 1M tokens

1 Pulse = 1 DA

Input315 Pulses= 315 DA

Output2,520 Pulses= 2,520 DA

Cached input31.5 Pulses= 31.5 DA

Context window400KMax output: 128K

Capabilities

Vision — Understands images and documents you send
Reasoning — Thinks step by step before answering
Tool use — Can call your functions / tools

Estimate your cost

Input tokens Output tokens Requests

Estimated cost

Use this model

Create an account, top up in dinars and call it with your key:

from openai import OpenAI

client = OpenAI(
    base_url="https://dztokens.com/v1",
    api_key="sk-dz-…",
)

reply = client.chat.completions.create(
    model="openai/gpt-5.3-codex",
    messages=[{"role": "user", "content": "Salam!"}],
)
print(reply.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://dztokens.com/v1",
  apiKey: process.env.DZTOKENS_API_KEY,
});

const reply = await client.chat.completions.create({
  model: "openai/gpt-5.3-codex",
  messages: [{ role: "user", content: "Salam!" }],
});
console.log(reply.choices[0].message.content);

curl https://dztokens.com/v1/chat/completions \
  -H "Authorization: Bearer $DZTOKENS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.3-codex",
    "messages": [{"role": "user", "content": "Salam!"}],
    "stream": true
  }'

from anthropic import Anthropic

client = Anthropic(
    base_url="https://dztokens.com",
    api_key="sk-dz-…",
)

msg = client.messages.create(
    model="openai/gpt-5.3-codex",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Salam!"}],
)
print(msg.content[0].text)

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