OpenAIPaidOperational
GPT 5.3 Codex Spark
API model name: gpt-5.3-codex-spark
GPT 5.3 Codex Spark is OpenAI's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning. It is priced at $0.34 per million input tokens and $2.68 per million output tokens. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Specifications
- Provider
- OpenAI
- Type
- chat model
Capabilities
Reasoning
What is GPT 5.3 Codex Spark used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Complex reasoning — math, coding and step-by-step problem solving.
GPT 5.3 Codex Spark vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| GPT 5.3 Codex Spark | — | — | $0.34 | $2.68 |
| Chatgpt 4o Latest | — | — | $0.98 | $2.93 |
| Codex Auto Review | — | — | $0.33 | $1.99 |
| Davinci 002 | — | — | $5.73 | $5.73 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Chatgpt 4o LatestOpenAI · $0.98 / 1MChatgpt Image LatestOpenAI · $6.50 / 1MCodex Auto ReviewOpenAI · $0.33 / 1MDALL·E 2OpenAI · $10.00 / 1MDavinci 002OpenAI · $5.73 / 1MGPT 3.5OpenAI · $0.68 / 1MGPT 3.5 TurboOpenAI · $0.68 / 1MGPT 3.5 TurboOpenAI · $0.38 / 1MGPT 3.5 TurboOpenAI · $0.42 / 1MGPT 3.5 TurboOpenAI · $0.29 / 1MGPT 3.5 Turbo 16kOpenAI · $4.04 / 1MGPT 3.5 Turbo InstructOpenAI · $0.30 / 1M
GPT 5.3 Codex Spark — frequently asked questions
- How much does GPT 5.3 Codex Spark cost?
- GPT 5.3 Codex Spark is billed pay-as-you-go at $0.34 per 1M input tokens and $2.68 per 1M output tokens. There is no subscription — you only pay for what you use.
- What can GPT 5.3 Codex Spark do?
- GPT 5.3 Codex Spark supports Reasoning.
- Is GPT 5.3 Codex Spark free to use?
- GPT 5.3 Codex Spark is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
- How do I use GPT 5.3 Codex Spark via the API?
- GPT 5.3 Codex Spark is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gpt-5.3-codex-spark with your Api.Airforce API key.
- Who makes GPT 5.3 Codex Spark?
- GPT 5.3 Codex Spark is OpenAI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use GPT 5.3 Codex Spark via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass gpt-5.3-codex-spark as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.3-codex-spark",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="gpt-5.3-codex-spark",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "gpt-5.3-codex-spark",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);